HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from St. Louis (STL) to Montreal (YMQ) from $143

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — YMQ
Jun 7 — Jun 141
From?
To?
Fri 6/7
Fri 6/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

The best prices from Lambert-St Louis to Montreal are usually found in February or January, booked 83 days in advance, depart on a Saturday or Thursday and return on a Friday

Cheap flight deals from St. Louis to Montreal

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Montreal (YMQ). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 2, 2024.

Popular in

August

Cheapest in

February

Round-trip from

$276

One-way from

$244
High demand for flights, 18% potential price rise
Search Deals
Best time to find cheap flights, 36% potential price drop
Search Deals
From Lambert-St Louis to Montreal (YMQ)
Search Deals
One-way flight from Lambert-St Louis to Montreal (YMQ)
Search Deals

What is the cheapest day to fly round-trip from St. Louis to Montreal?

Leaving on a Friday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 43% on the overall cost on flights from St. Louis to Montreal.

How far in advance should I book a flight from St. Louis to Montreal?

Users have found that booking a flight from St. Louis to Montreal at least 53 days early can save you up to 191% on average compared to booking a flight this week. If booking 53 days before your flight isn’t an option for you, users have found flights from St. Louis to Montreal for as little as $392 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $756 for flights departing within the next 3 days.

What is the cheapest month to fly from St. Louis to Montreal?

Flights from St. Louis to Montreal lean towards being more expensive in August. Prices are generally better when you fly from St. Louis to Montreal in February, with the cheapest ticket starting at $219.

What is the cheapest time of day to fly from STL to YMQ?

A simple way to save on the total cost of your ticket is to fly from St. Louis to Montreal in the evening. If you’re flexible enough to do this you can expect to save up to 53% on your trip compared to booking a flight at noon.

Cheap United Airlines flights from St. Louis to Montreal

Explore cheap flight options specifically provided by United Airlines for the route between St. Louis and Montreal. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.
Consider these cheap United Airlines flights we've found departing from St. Louis to Montreal. Make sure to double check the flight details before booking.
Tue 10/111:09 amSTL - YUL
2 stops7h 18mUnited Airlines
Tue 10/87:30 pmYUL - STL
Nonstop2h 35mUnited Airlines
Deal found 5/31$531
Tue 8/209:30 amSTL - YUL
2 stops10h 25mUnited Airlines
Tue 8/278:10 amYUL - STL
2 stops12h 37mUnited Airlines
Deal found 5/31$541
Wed 10/96:30 amSTL - YUL
2 stops8h 21mUnited Airlines
Sat 10/126:30 pmYUL - STL
1 stop5h 32mUnited Airlines
Deal found 5/31$546
Sat 9/78:05 amSTL - YUL
2 stops10h 22mUnited Airlines
Fri 9/136:30 pmYUL - STL
2 stops16h 37mUnited Airlines
Deal found 5/31$551
Wed 7/106:08 amSTL - YUL
1 stop6h 08mUnited Airlines
Tue 7/167:30 pmYUL - STL
Nonstop2h 35mUnited Airlines
Deal found 5/31$567
Tue 8/138:05 amSTL - YUL
2 stops9h 37mUnited Airlines
Fri 8/166:00 amYUL - STL
2 stops9h 18mUnited Airlines
Deal found 5/31$596
Sat 6/296:30 amSTL - YUL
1 stop13h 59mUnited Airlines
Mon 7/111:30 amYUL - STL
1 stop5h 10mUnited Airlines
Deal found 6/1$608
Fri 7/511:30 amSTL - YUL
Nonstop2h 23mUnited Airlines
Tue 7/97:30 pmYUL - STL
Nonstop2h 35mUnited Airlines
Deal found 6/1$658
Sat 6/156:08 amSTL - YUL
1 stop6h 08mUnited Airlines
Tue 6/187:30 pmYUL - STL
Nonstop2h 35mUnited Airlines
Deal found 5/31$668

Cheap American Airlines flights from St. Louis to Montreal

Explore cheap flight options specifically provided by American Airlines for the route between St. Louis and Montreal. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.
Some of the lowest-priced American Airlines flights we've found at this time heading from St. Louis to Montreal. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Sat 6/223:27 pmSTL - YUL
1 stop6h 17mAmerican Airlines
Thu 6/275:23 pmYUL - STL
1 stop16h 13mAmerican Airlines
Deal found 5/31$529
Mon 7/159:20 amSTL - YUL
1 stop12h 24mAmerican Airlines
Sat 7/207:50 amYUL - STL
1 stop13h 59mAmerican Airlines
Deal found 5/31$535
Sat 6/227:00 amSTL - YUL
2 stops8h 40mAmerican Airlines
Thu 6/2710:43 amYUL - STL
1 stop10h 30mAmerican Airlines
Deal found 5/31$538
Thu 7/46:09 amSTL - YUL
2 stops9h 21mAmerican Airlines
Tue 7/97:29 amYUL - STL
1 stop7h 45mAmerican Airlines
Deal found 5/31$545
Wed 7/107:03 amSTL - YUL
2 stops8h 37mAmerican Airlines
Tue 7/1610:43 amYUL - STL
2 stops9h 47mAmerican Airlines
Deal found 5/31$548
Wed 7/36:09 amSTL - YUL
2 stops9h 21mAmerican Airlines
Mon 7/85:23 pmYUL - STL
1 stop16h 16mAmerican Airlines
Deal found 5/31$573
Wed 7/37:00 amSTL - YUL
1 stop14h 44mAmerican Airlines
Mon 7/85:23 pmYUL - STL
1 stop16h 16mAmerican Airlines
Deal found 5/31$589
Sat 6/87:00 amSTL - YUL
2 stops8h 40mAmerican Airlines
Tue 6/115:23 pmYUL - STL
1 stop16h 13mAmerican Airlines
Deal found 5/31$790
Sat 6/87:00 amSTL - YUL
2 stops8h 40mAmerican Airlines
Tue 6/1110:43 amYUL - STL
2 stops9h 46mAmerican Airlines
Deal found 5/31$815

Cheap St. Louis to Montreal flights in June & July 2024

Find cheap flight options from St. Louis to Montreal specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,810,401 searches. Prices were last updated on June 2, 2024.
These are some of the best deals we've found on flights to Montreal in 2024 at this time. Check back regularly for other flight deals.
Sun 6/166:55 pmSTL - YUL
2 stops19h 05mMultiple Airlines
Tue 6/186:50 amYUL - STL
1 stop8h 33mMultiple Airlines
Deal found 5/31$377
Sun 6/167:44 pmSTL - YUL
1 stop17h 36mMultiple Airlines
Tue 6/186:50 amYUL - STL
1 stop8h 33mMultiple Airlines
Deal found 5/31$391
Sun 6/166:30 amSTL - YUL
3 stops30h 50mMultiple Airlines
Tue 6/186:50 amYUL - STL
1 stop8h 33mMultiple Airlines
Deal found 5/31$452
Sun 6/166:55 pmSTL - YUL
2 stops19h 05mMultiple Airlines
Tue 6/186:50 amYUL - STL
3 stops39h 16mMultiple Airlines
Deal found 5/31$469
Thu 6/137:44 pmSTL - YUL
1 stop23h 56mMultiple Airlines
Sat 6/156:50 amYUL - STL
1 stop11h 38mMultiple Airlines
Deal found 5/31$475
Fri 6/2812:15 pmSTL - YUL
3 stops29h 30mMultiple Airlines
Fri 7/57:00 amYUL - STL
3 stops29h 45mMultiple Airlines
Deal found 5/31$483
Sun 6/166:30 amSTL - YUL
3 stops30h 50mMultiple Airlines
Tue 6/186:50 amYUL - STL
3 stops39h 16mMultiple Airlines
Deal found 5/31$517
Sat 6/223:27 pmSTL - YUL
1 stop6h 17mAmerican Airlines
Thu 6/275:23 pmYUL - STL
1 stop16h 13mAmerican Airlines
Deal found 5/31$529
Thu 6/134:45 pmSTL - YUL
3 stops26h 55mMultiple Airlines
Sat 6/156:50 amYUL - STL
1 stop11h 38mMultiple Airlines
Deal found 5/31$533

St. Louis to Montreal 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Montreal in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.
These are some of the best deals we've found on flights to Montreal in 2024 at this time. Check back regularly for other flight deals.
Sun 6/166:55 pmSTL - YUL
2 stops19h 05mMultiple Airlines
Tue 6/186:50 amYUL - STL
1 stop8h 33mMultiple Airlines
Deal found 5/31$377
Sun 6/167:44 pmSTL - YUL
1 stop17h 36mMultiple Airlines
Tue 6/186:50 amYUL - STL
1 stop8h 33mMultiple Airlines
Deal found 5/31$391
Sun 9/87:48 pmSTL - YUL
1 stop17h 32mMultiple Airlines
Thu 9/127:00 amYUL - STL
2 stops12h 29mMultiple Airlines
Deal found 5/31$412
Sun 9/87:48 pmSTL - YUL
2 stops18h 12mMultiple Airlines
Thu 9/127:00 amYUL - STL
2 stops12h 29mMultiple Airlines
Deal found 5/31$414
Sun 9/87:48 pmSTL - YUL
3 stops27h 43mMultiple Airlines
Thu 9/127:00 amYUL - STL
2 stops12h 29mMultiple Airlines
Deal found 5/31$420
Sun 9/87:48 pmSTL - YUL
2 stops18h 12mMultiple Airlines
Thu 9/127:00 amYUL - STL
2 stops12h 29mMultiple Airlines
Deal found 6/1$425
Sun 9/87:48 pmSTL - YUL
3 stops27h 43mMultiple Airlines
Thu 9/127:00 amYUL - STL
2 stops12h 29mMultiple Airlines
Deal found 6/1$426
Sun 9/87:48 pmSTL - YUL
1 stop17h 32mMultiple Airlines
Thu 9/126:45 amYUL - STL
1 stop12h 44mMultiple Airlines
Deal found 5/31$431
Tue 8/2012:59 pmSTL - YUL
1 stop9h 11mDelta
Tue 8/2710:00 amYUL - STL
1 stop9h 30mDelta
Deal found 5/31$441

Non-stop flights to Montreal from St. Louis

Discover non-stop flight options from St. Louis to Montreal. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.
Consider booking one of these non-stop flights heading from St. Louis to Montreal. Users can also choose from other St. Louis to Montreal flights by using the search form above.
Sat 7/611:30 amSTL - YUL
Nonstop2h 23mAir Canada
Fri 7/127:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 5/31$512
Mon 9/912:00 pmSTL - YUL
Nonstop2h 23mAir Canada
Tue 9/177:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 5/31$557
Tue 10/112:00 pmSTL - YUL
Nonstop2h 23mAir Canada
Tue 10/87:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 5/31$582
Sat 7/611:30 amSTL - YUL
Nonstop2h 23mAir Canada
Fri 7/127:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 6/1$602
Fri 7/511:30 amSTL - YUL
Nonstop2h 23mUnited Airlines
Wed 7/107:30 pmYUL - STL
Nonstop2h 35mUnited Airlines
Deal found 5/31$612
Mon 8/1212:00 pmSTL - YUL
Nonstop2h 23mAir Canada
Thu 8/157:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 6/1$652
Thu 7/411:30 amSTL - YUL
Nonstop2h 23mAir Canada
Tue 7/97:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 5/31$654
Thu 8/812:00 pmSTL - YUL
Nonstop2h 23mAir Canada
Mon 8/127:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 5/31$657
Sat 6/299:50 amSTL - YUL
Nonstop2h 23mAir Canada
Mon 7/17:30 pmYUL - STL
Nonstop2h 35mAir Canada
Deal found 6/1$676

St. Louis to Montreal flights leaving soon

Find last-minute flight options from St. Louis to Montreal for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.
Users seeking a last-minute flight from St. Louis to Montreal should consider booking one of these fares. Users should be sure to double check the price, date, and time of their last-minute flight.
Thu 6/137:44 pmSTL - YUL
1 stop23h 56mMultiple Airlines
Sat 6/156:50 amYUL - STL
1 stop11h 38mMultiple Airlines
Deal found 5/31$475
Thu 6/134:45 pmSTL - YUL
3 stops26h 55mMultiple Airlines
Sat 6/156:50 amYUL - STL
1 stop11h 38mMultiple Airlines
Deal found 5/31$533
Thu 6/136:22 pmSTL - YUL
2 stops25h 18mMultiple Airlines
Sat 6/156:50 amYUL - STL
1 stop11h 38mMultiple Airlines
Deal found 5/31$539
Thu 6/134:45 pmSTL - YUL
3 stops26h 55mMultiple Airlines
Sat 6/156:45 amYUL - STL
3 stops30h 20mMultiple Airlines
Deal found 5/31$565
Thu 6/136:22 pmSTL - YUL
2 stops25h 18mMultiple Airlines
Sat 6/156:45 amYUL - STL
3 stops30h 20mMultiple Airlines
Deal found 5/31$571
Tue 6/113:23 pmSTL - YUL
3 stops19h 52mMultiple Airlines
Wed 6/124:45 pmYUL - STL
3 stops28h 10mMultiple Airlines
Deal found 6/1$592
Sat 6/155:26 pmSTL - YUL
1 stop4h 38mDelta
Tue 6/187:00 amYUL - STL
1 stop8h 30mDelta
Deal found 5/31$623
Sat 6/156:08 amSTL - YUL
1 stop6h 08mUnited Airlines
Tue 6/187:30 pmYUL - STL
Nonstop2h 35mUnited Airlines
Deal found 5/31$668
Sat 6/159:50 amSTL - YUL
1 stop6h 28mAir Canada
Tue 6/1811:10 amYUL - STL
1 stop5h 11mAir Canada
Deal found 6/1$680

One-way flights to Montreal from St. Louis

Search for one-way flight options from St. Louis to Montreal. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.
Take a look at some of the best available options we've come across on one-way flights from St. Louis to Montreal. Users needing a return flight from St. Louis to Montreal should utilize the search form above.
Tue 6/113:23 pmSTL - YUL
2 stops32h 10mMultiple Airlines
Deal found 5/31$143
Sun 6/166:55 pmSTL - YUL
1 stop18h 25mMultiple Airlines
Deal found 5/31$172
Tue 6/113:23 pmSTL - YUL
1 stop22h 37mMultiple Airlines
Deal found 5/31$174
Sun 6/165:22 pmSTL - YUL
2 stops19h 58mMultiple Airlines
Deal found 5/31$176
Tue 6/113:23 pmSTL - YUL
3 stops19h 52mMultiple Airlines
Deal found 5/31$183
Tue 8/1310:11 amSTL - YUL
2 stops13h 20mMultiple Airlines
Deal found 6/1$192
Wed 6/127:29 pmSTL - YUL
2 stops40h 41mMultiple Airlines
Deal found 5/31$194
Thu 7/46:22 pmSTL - YUL
2 stops29h 11mMultiple Airlines
Deal found 5/30$196
Mon 9/234:31 pmSTL - YUL
3 stops31h 00mMultiple Airlines
Deal found 6/1$201

Find flights from St. Louis to Montreal within your budget

Customize your flight search to find flights from St. Louis to Montreal that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$377 - $639

Route

Depart

Return

Price

Lambert-St LouisMontreal Pierre Elliott Trudeau Intl

STL - YUL

STLYUL

Lambert-St Louis

Sun 6/16

2 stops19h 05m

Montreal Pierre Elliott Trudeau Intl

Tue 6/18

1 stop8h 33m

$377

Lambert-St LouisMontreal Pierre Elliott Trudeau Intl

STL - YUL

STLYUL

Lambert-St Louis

Sun 6/16

1 stop17h 36m

Montreal Pierre Elliott Trudeau Intl

Tue 6/18

1 stop8h 33m

$391

Lambert-St LouisMontreal Pierre Elliott Trudeau Intl

STL - YUL

STLYUL

Lambert-St Louis

Sun 9/8

1 stop17h 32m

Montreal Pierre Elliott Trudeau Intl

Thu 9/12

2 stops12h 29m

$412

Lambert-St LouisMontreal Pierre Elliott Trudeau Intl

STL - YUL

STLYUL

Lambert-St Louis

Tue 8/20

1 stop9h 11m

Montreal Pierre Elliott Trudeau Intl

Tue 8/27

1 stop9h 30m

$441

Lambert-St LouisMontreal Pierre Elliott Trudeau Intl

STL - YUL

STLYUL

Lambert-St Louis

Wed 8/28

1 stop9h 11m

Montreal Pierre Elliott Trudeau Intl

Wed 9/4

2 stops11h 06m

$450

Lambert-St LouisMontreal Pierre Elliott Trudeau Intl

STL - YUL

STLYUL

Lambert-St Louis

Sat 7/6

Nonstop2h 23m

Montreal Pierre Elliott Trudeau Intl

Fri 7/12

Nonstop2h 35m

$512

Lambert-St LouisMontreal Pierre Elliott Trudeau Intl

STL - YUL

STLYUL

Lambert-St Louis

Sat 6/22

1 stop6h 17m

Montreal Pierre Elliott Trudeau Intl

Thu 6/27

1 stop16h 13m

$529

Lambert-St LouisMontreal Pierre Elliott Trudeau Intl

STL - YUL

STLYUL

Lambert-St Louis

Tue 10/1

2 stops7h 18m

Montreal Pierre Elliott Trudeau Intl

Tue 10/8

Nonstop2h 35m

$531

Lambert-St LouisMontreal Pierre Elliott Trudeau Intl

STL - YUL

STLYUL

Lambert-St Louis

Fri 7/5

1 stop8h 40m

Montreal Pierre Elliott Trudeau Intl

Mon 7/8

1 stop5h 44m

$639

Flights are sorted by cheapest first

Deals found on 5/31

How far ahead should I book a flight from St. Louis to Montreal?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Montreal. Price data was last updated on May 31, 2024.
The best time to book flights from St. Louis to Montreal is 83 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Search Deals

What is the cheapest day to fly from St. Louis to Montreal?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Montreal. Price data was last updated on May 26, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Montreal flight should consider departing on Saturday at noon when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from St. Louis to Montreal

Have a flexible travel schedule? Discover the best time to fly to Montreal from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in Montreal by month

Plan your trip to Montreal by taking into account the average temperature and rainfall totals by month.

YMQ

Temperature

15.8 - 71.6 °F

Reviews of airlines servicing Montreal

Get insights into the airlines that provide service to Montreal. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Montreal. Reviews last updated June 2, 2024.
Read through reviews of airlines operating flights from St. Louis to Montreal, such as United Airlines, American Airlines and Air Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,410 reviews
Check prices

Entertainment

8.0

Food

7.4

Overall

8.0

Comfort

7.9

Crew

8.6

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Delta
8.0
Very good
10,410 reviews
Delta
8.0
Very good
10,410 reviews
Check prices

Entertainment

8.0

Food

7.4

Overall

8.0

Comfort

7.9

Crew

8.6

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

WestJet
7.5
Good
2,861 reviews
Delta
8.0
Very good
10,410 reviews
Check prices

Entertainment

8.0

Food

7.4

Overall

8.0

Comfort

7.9

Crew

8.6

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

United Airlines
7.4
Good
10,754 reviews
Delta
8.0
Very good
10,410 reviews
Check prices

Entertainment

8.0

Food

7.4

Overall

8.0

Comfort

7.9

Crew

8.6

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

American Airlines
7.3
Good
14,268 reviews
Delta
8.0
Very good
10,410 reviews
Check prices

Entertainment

8.0

Food

7.4

Overall

8.0

Comfort

7.9

Crew

8.6

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Air Canada
7.0
Good
7,021 reviews
Delta
8.0
Very good
10,410 reviews
Check prices

Entertainment

8.0

Food

7.4

Overall

8.0

Comfort

7.9

Crew

8.6

Boarding

8.2

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Montreal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from St. Louis to Montreal?

    Most people fly from Lambert-St Louis (STL) if they book a flight from St. Louis to Montreal. On average, Lambert-St Louis has 0 outbound flights to Montreal per day from 5 airlines. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

  • Can I find flights from St. Louis to Montreal for under $400 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Montreal for under $400. The cheapest flight booked recently is on Multiple Airlines for just $377, but on average you can expect to pay $445.

  • Are there nonstop flights from St. Louis to Montreal for under $600 on Cheapflights?

    Cheapflights has at least 20 direct flights from St. Louis to Montreal under $600. A good price for a nonstop flight from St. Louis to Montreal is less than $716.

  • Are there last-minute flights available from St. Louis to Montreal for under $500?

    There are currently 20+ open flights from St. Louis to Montreal within the next 7 days for less than $500.

  • What are the cheapest airlines flying from St. Louis to Montreal round-trip?

    Cheapflights users have booked flights from St. Louis to Montreal round-trip from $441. Another airline that can offer you cheap pricing is Air Canada. Delta is currently priced 13% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from St. Louis to Montreal one-way?

    The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $229. However, be on the lookout for offers from Delta and American Airlines, as they are both options that can get you from St. Louis to Montreal for a low price.

  • What are the most reliable airlines from St. Louis to Montreal?

    Consider Air Canada (64%), Jazz (64%) or United Airlines (64%) when booking your flight. These represent the most reliable airlines when flying from St. Louis to Montreal.

  • What are the cheapest flights from St. Louis to Montreal?

    Looking at all options, your cheapest flight can be booked for $274. While the most popular route (Lambert-St Louis - Montreal Pierre Elliott Trudeau Intl) can be booked for $377 on average our data indicates $777 when flying from St. Louis to Montreal.

  • What does STL to YUL mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Lambert-St Louis Airport to Montreal Pierre Elliott Trudeau Intl Airport flight would often be abbreviated as a STL to YUL flight. Montreal St Hubert Airport (YHU) are other airports near this flight route and their unique identifiers/IATA codes.

  • Can I find deals for flights from St. Louis to Montreal that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to Montreal flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to Montreal with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Montreal flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from St. Louis to Montreal that include hotel bookings?

    Yes. In addition to deals on St. Louis to Montreal flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Montreal?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Montreal.

  • Can I find deals for business class flights from St. Louis to Montreal?

    Yes. Cheapflights offers flight deals from St. Louis to Montreal by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from St. Louis to Montreal that allow pets onboard?

    Many airlines flying from St. Louis to Montreal offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from St. Louis to Montreal?

    Yes, you can often find last-minute deals on St. Louis to Montreal flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the St. Louis to Montreal flight deals updated?

    The St. Louis to Montreal flight deals you see on this page were last updated on 6/1.

  • What are the most popular airlines that fly from St. Louis to Montreal?

    Before booking your flight from St. Louis to Montreal check out the most popular airlines for this route: American Airlines, Air Canada or Delta.

  • What is the cheapest month to book a flight from St. Louis to Montreal?

    Currently, February is the cheapest month in which you can book a flight from St. Louis to Montreal (average of $246). Flying from St. Louis to Montreal in July is currently the most expensive (average of $444). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to Montreal
See prices for flight routes from nearby airports that may be better suited for you.

St. Louis to Pierre Elliott Trudeau Intl flights
Kansas City to Pierre Elliott Trudeau Intl flights
Kansas City to Québec City flights
St. Louis to Québec City flights
Springfield to Pierre Elliott Trudeau Intl flights
Kansas City to Ottawa flights
St. Louis to Ottawa flights
Columbia to Pierre Elliott Trudeau Intl flights
Joplin to Pierre Elliott Trudeau Intl flights

Top 5 airlines flying from St. Louis to Montreal

Discover the top 5 airlines that operate flights from St. Louis to Montreal. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$237Average$503FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest$267Average$562FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapest$274Average$497FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$383Average$597FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
WestJetCheapest$501Average$645FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Nashville to New York flights
Dallas to Dubai flights
San Francisco to Austin flights
Nashville to Los Angeles flights
Charlotte to Atlanta flights
New York to Chicago flights
Charlotte to Nashville flights
Dallas to Tampa flights
Chicago O'Hare Intl Airport to Los Angeles flights
Tampa to New York flights
Miami to Los Angeles flights
St. Louis to Youngstown flights

Search flights from St. Louis to Montreal by cabin class

Find flights from St. Louis to Montreal, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Hourly flight availability from St. Louis to Montreal

Find hourly flight availability from St. Louis to Montreal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 2, 2024.
0%of flight departuresEarly morningMidnight to 6 am
100%of flight departuresMorning6 am to noon
0%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Laayoune Hassan I
Flights to Virac
Flights to Figari-Sud Corse
Flights to Edremit/Korfez
Flights to Rhinelander Oneida County
Flights to Girona Costa Brava
Flights to Brainerd Crow Wing County
Flights to Parikia Paros
Flights to Cortez Montezuma County
Flights to Miyakojima Hirara
Flights to Zadar
Flights to Trapani Birgi
Flights to Provincetown
Flights to Oran Es Senia
Flights to Constanţa Mihail Kogalniceanu
Flights to Vava'u Lupepau'U
Flights to Urumqi
Flights to Hakodate
Flights to Naxos
Flights to Dalaman
Flights to Hyannis Barnstable
Flights to Devils Lake
Flights to Bastia Poretta
Flights to Karpathos

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from St. Louis to Montreal?

Cheapflights helps you search for flights from St. Louis to Montreal via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from St. Louis to Montreal?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Montreal from St. Louis.

Can Cheapflights find flights from St. Louis to Montreal with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from St. Louis to Montreal, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from St. Louis to Montreal become cheaper?

Yes, Cheapflights offers price alerts on St. Louis to Montreal flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines