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Cheap flights from St. Louis to Boise (STL - BOI) from $64

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 6/24. 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 — BOI
Jun 7 — Jun 141
From?
To?
Fri 6/7
Fri 6/14
1 adult, Economy
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The best prices from Lambert-St Louis to Boise Air Term. Gowen Fld are usually found in January or February, booked 68 days in advance, depart on a Wednesday or Saturday and return on a Tuesday

Cheap flight deals from St. Louis to Boise

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Boise (BOI). 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

March

Cheapest in

January

Round-trip from

$311

One-way from

$151
High demand for flights, 28% potential price rise
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Best time to find cheap flights, 26% potential price drop
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From Lambert-St Louis to Boise Air Term. Gowen Fld
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One-way flight from Lambert-St Louis to Boise Air Term. Gowen Fld
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What is the cheapest day to fly round-trip from St. Louis to Boise?

Users have found that flying from St. Louis to Boise on a Thursday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

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

Find a great deal and save up to 138% by booking at least 18 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from St. Louis to Boise within the next two weeks, with the cheapest ticket starting at $379.

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

Flights from St. Louis to Boise lean towards being more expensive in March. Prices are generally better when you fly from St. Louis to Boise in January, with the cheapest ticket starting at $298.

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

When flying from St. Louis to Boise, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 11% versus a flight in the afternoon.

Cheap United Airlines flights from St. Louis to Boise

Explore cheap flight options specifically provided by United Airlines for the route between St. Louis and Boise. 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.
Take a peek at the cheapest United Airlines flights we've detected traveling from St. Louis to Boise. Be sure to come back soon if the deals available don't appeal to you at this time.
Mon 7/14:36 pmSTL - BOI
1 stop6h 54mUnited Airlines
Wed 7/105:05 amBOI - STL
2 stops8h 13mUnited Airlines
Deal found 5/31$387
Fri 8/1611:25 amSTL - BOI
2 stops12h 05mUnited Airlines
Fri 8/238:45 amBOI - STL
1 stop7h 18mUnited Airlines
Deal found 5/31$411
Fri 8/161:45 pmSTL - BOI
2 stops8h 22mUnited Airlines
Fri 8/238:05 amBOI - STL
2 stops12h 23mUnited Airlines
Deal found 5/31$416
Fri 7/121:45 pmSTL - BOI
1 stop6h 28mUnited Airlines
Fri 7/198:15 pmBOI - STL
2 stops17h 21mUnited Airlines
Deal found 5/31$472
Mon 10/144:55 pmSTL - BOI
2 stops19h 28mUnited Airlines
Sat 10/198:10 amBOI - STL
2 stops11h 43mUnited Airlines
Deal found 6/1$475
Sat 6/291:45 pmSTL - BOI
1 stop5h 10mUnited Airlines
Sat 7/65:05 amBOI - STL
2 stops9h 35mUnited Airlines
Deal found 5/30$571
Thu 7/181:45 pmSTL - BOI
1 stop6h 28mUnited Airlines
Mon 7/225:27 pmBOI - STL
2 stops21h 13mUnited Airlines
Deal found 5/31$607
Sat 8/171:45 pmSTL - BOI
2 stops9h 27mUnited Airlines
Tue 8/207:00 amBOI - STL
1 stop4h 43mUnited Airlines
Deal found 5/31$829
Thu 8/154:36 pmSTL - BOI
1 stop6h 54mUnited Airlines
Sat 8/1710:42 amBOI - STL
2 stops9h 55mUnited Airlines
Deal found 5/31$841

Cheap American Airlines flights from St. Louis to Boise

Explore cheap flight options specifically provided by American Airlines for the route between St. Louis and Boise. 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.
To aid your search, here are some of the cheapest American Airlines flights we've found from St. Louis to Boise. Deals are refreshing constantly so come back soon for more options.
Wed 7/105:22 amSTL - BOI
1 stop6h 34mAmerican Airlines
Mon 7/1512:51 amBOI - STL
1 stop7h 38mAmerican Airlines
Deal found 5/30$330
Mon 7/18:01 amSTL - BOI
1 stop7h 42mAmerican Airlines
Tue 7/912:51 amBOI - STL
1 stop7h 38mAmerican Airlines
Deal found 5/31$334
Thu 7/185:22 amSTL - BOI
1 stop6h 34mAmerican Airlines
Sun 7/2112:51 amBOI - STL
1 stop7h 38mAmerican Airlines
Deal found 5/31$412
Fri 7/127:00 amSTL - BOI
1 stop8h 49mAmerican Airlines
Sun 7/1412:51 amBOI - STL
1 stop7h 38mAmerican Airlines
Deal found 5/30$458
Sat 6/154:55 pmSTL - BOI
1 stop6h 16mAmerican Airlines
Sat 6/2211:46 amBOI - STL
1 stop6h 31mAmerican Airlines
Deal found 6/1$467
Sat 8/175:00 amSTL - BOI
1 stop8h 42mAmerican Airlines
Mon 8/196:40 amBOI - STL
2 stops12h 07mAmerican Airlines
Deal found 5/31$505
Sat 6/296:11 pmSTL - BOI
1 stop6h 05mAmerican Airlines
Sat 7/611:46 amBOI - STL
1 stop6h 34mAmerican Airlines
Deal found 5/30$542
Sat 6/154:55 pmSTL - BOI
1 stop6h 16mAmerican Airlines
Sat 6/296:35 amBOI - STL
2 stops11h 42mAmerican Airlines
Deal found 5/31$588
Thu 6/205:27 amSTL - BOI
1 stop6h 33mAmerican Airlines
Thu 6/276:35 amBOI - STL
2 stops11h 42mAmerican Airlines
Deal found 6/1$622

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

Find cheap flight options from St. Louis to Boise 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 Boise in 2024 at this time. Check back soon for alternative fares.
Sat 6/1511:34 amSTL - BOI
2 stops24h 49mMultiple Airlines
Sat 6/225:20 pmBOI - STL
1 stop23h 05mMultiple Airlines
Deal found 6/1$262
Fri 6/283:07 pmSTL - BOI
1 stop6h 16mMultiple Airlines
Sun 6/306:14 pmBOI - STL
1 stop18h 37mMultiple Airlines
Deal found 5/31$296
Fri 6/283:07 pmSTL - BOI
1 stop22h 46mMultiple Airlines
Sun 6/306:14 pmBOI - STL
1 stop18h 37mMultiple Airlines
Deal found 6/1$302
Sat 6/1511:34 amSTL - BOI
2 stops24h 49mMultiple Airlines
Sat 6/221:43 pmBOI - STL
3 stops25h 22mMultiple Airlines
Deal found 6/1$355
Sat 6/1511:34 amSTL - BOI
3 stops33h 49mMultiple Airlines
Sat 6/225:20 pmBOI - STL
1 stop23h 05mMultiple Airlines
Deal found 6/1$362
Sat 6/1511:34 amSTL - BOI
2 stops24h 49mMultiple Airlines
Sat 6/299:13 pmBOI - STL
3 stops18h 19mMultiple Airlines
Deal found 5/31$369
Fri 6/283:07 pmSTL - BOI
2 stops22h 31mMultiple Airlines
Sun 6/306:14 pmBOI - STL
1 stop18h 37mMultiple Airlines
Deal found 6/1$389
Sat 6/156:05 amSTL - BOI
1 stop7h 36mDelta
Sat 6/2911:39 pmBOI - STL
1 stop8h 31mDelta
Deal found 5/31$396
Fri 6/283:07 pmSTL - BOI
2 stops22h 31mMultiple Airlines
Sun 6/306:14 pmBOI - STL
1 stop18h 37mMultiple Airlines
Deal found 5/31$397

St. Louis to Boise 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Boise 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 Boise in 2024 at this time. Check back soon for alternative fares.
Fri 8/161:59 pmSTL - BOI
1 stop22h 23mSpirit Airlines
Tue 8/2012:20 pmBOI - STL
1 stop23h 44mSpirit Airlines
Deal found 5/31$217
Thu 9/266:18 pmSTL - BOI
1 stop27h 27mSpirit Airlines
Fri 9/2710:59 pmBOI - STL
1 stop15h 42mSpirit Airlines
Deal found 6/1$258
Sat 6/1511:34 amSTL - BOI
2 stops24h 49mMultiple Airlines
Sat 6/225:20 pmBOI - STL
1 stop23h 05mMultiple Airlines
Deal found 6/1$262
Fri 6/283:07 pmSTL - BOI
1 stop6h 16mMultiple Airlines
Sun 6/306:14 pmBOI - STL
1 stop18h 37mMultiple Airlines
Deal found 5/31$296
Wed 8/145:52 pmSTL - BOI
1 stop7h 18mDelta
Wed 8/216:26 pmBOI - STL
1 stop5h 29mDelta
Deal found 5/31$302
Sat 8/176:06 amSTL - BOI
1 stop5h 54mDelta
Tue 8/205:47 amBOI - STL
1 stop6h 53mDelta
Deal found 5/31$304
Sat 8/176:06 amSTL - BOI
1 stop5h 54mDelta
Sat 8/173:12 pmBOI - STL
1 stop7h 16mDelta
Deal found 5/31$306
Fri 7/125:25 pmSTL - BOI
1 stop24h 49mMultiple Airlines
Sun 7/216:06 pmBOI - STL
1 stop20h 00mMultiple Airlines
Deal found 5/31$308
Fri 7/125:25 pmSTL - BOI
1 stop24h 49mMultiple Airlines
Mon 7/151:03 pmBOI - STL
2 stops22h 21mMultiple Airlines
Deal found 5/30$311

One-way flights to Boise from St. Louis

Search for one-way flight options from St. Louis to Boise. 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.
Users traveling one-way from St. Louis to Boise can select one of these great deals. Those needing a return flight from St. Louis to Boise can use the search form above.
Mon 6/242:41 pmSTL - BOI
1 stop26h 58mSpirit Airlines
Deal found 6/1$64
Wed 8/74:02 pmSTL - BOI
1 stop20h 57mSpirit Airlines
Deal found 5/31$83
Mon 6/242:41 pmSTL - BOI
1 stop26h 58mSpirit Airlines
Deal found 5/31$102
Thu 9/196:18 pmSTL - BOI
1 stop28h 51mSpirit Airlines
Deal found 5/31$124
Fri 9/203:02 pmSTL - BOI
1 stop8h 07mSpirit Airlines
Deal found 5/31$137
Tue 7/2310:11 amSTL - BOI
3 stops27h 02mSpirit Airlines
Deal found 5/31$150
Tue 7/235:22 amSTL - BOI
1 stop6h 34mAmerican Airlines
Deal found 5/31$151
Tue 7/2310:11 amSTL - BOI
2 stops27h 02mSpirit Airlines
Deal found 5/31$162
Sun 8/116:15 pmSTL - BOI
2 stops25h 59mMultiple Airlines
Deal found 5/31$174

Find flights from St. Louis to Boise within your budget

Customize your flight search to find flights from St. Louis to Boise 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

$217 - $419

Route

Depart

Return

Price

Lambert-St LouisBoise Air Term. Gowen Fld

STL - BOI

STLBOI

Lambert-St Louis

Fri 8/16

1 stop22h 23m

Boise Air Term. Gowen Fld

Tue 8/20

1 stop23h 44m

$217

Lambert-St LouisBoise Air Term. Gowen Fld

STL - BOI

STLBOI

Lambert-St Louis

Thu 9/26

1 stop27h 27m

Boise Air Term. Gowen Fld

Fri 9/27

1 stop15h 42m

$258

Lambert-St LouisBoise Air Term. Gowen Fld

STL - BOI

STLBOI

Lambert-St Louis

Sat 6/15

2 stops24h 49m

Boise Air Term. Gowen Fld

Sat 6/22

1 stop23h 05m

$262

Lambert-St LouisBoise Air Term. Gowen Fld

STL - BOI

STLBOI

Lambert-St Louis

Fri 6/28

1 stop6h 16m

Boise Air Term. Gowen Fld

Sun 6/30

1 stop18h 37m

$296

Lambert-St LouisBoise Air Term. Gowen Fld

STL - BOI

STLBOI

Lambert-St Louis

Wed 8/14

1 stop7h 18m

Boise Air Term. Gowen Fld

Wed 8/21

1 stop5h 29m

$302

Lambert-St LouisBoise Air Term. Gowen Fld

STL - BOI

STLBOI

Lambert-St Louis

Sat 8/17

1 stop5h 54m

Boise Air Term. Gowen Fld

Tue 8/20

1 stop6h 53m

$304

Lambert-St LouisBoise Air Term. Gowen Fld

STL - BOI

STLBOI

Lambert-St Louis

Wed 7/10

1 stop6h 34m

Boise Air Term. Gowen Fld

Mon 7/15

1 stop7h 38m

$330

Lambert-St LouisBoise Air Term. Gowen Fld

STL - BOI

STLBOI

Lambert-St Louis

Mon 7/1

1 stop6h 54m

Boise Air Term. Gowen Fld

Wed 7/10

2 stops8h 13m

$387

Lambert-St LouisBoise Air Term. Gowen Fld

STL - BOI

STLBOI

Lambert-St Louis

Fri 10/11

2 stops23h 52m

Boise Air Term. Gowen Fld

Mon 10/14

1 stop7h 39m

$419

Flights are sorted by cheapest first

Deals found on 5/31

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

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Boise. Price data was last updated on May 31, 2024.
The price you pay for your flight from St. Louis to Boise may vary depending on when you book. For the best chance of a lower fare, look to book 68 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Search Deals

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

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Boise. 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 Boise flight should consider departing on Wednesday mornings when fares are most often at their lowest. Saturday afternoons 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 Boise

Have a flexible travel schedule? Discover the best time to fly to Boise 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 Boise by month

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

BOI

Temperature

30.2 - 75.2 °F

Reviews of airlines servicing Boise

Get insights into the airlines that provide service to Boise. 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 Boise. Reviews last updated June 2, 2024.
See what other customers who have flown with United Airlines, American Airlines and Spirit Airlines from St. Louis to Boise have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,198 reviews
Check prices

Entertainment

7.3

Comfort

7.9

Food

7.3

Overall

8.1

Boarding

8.2

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Alaska Airlines
8.1
Very good
9,198 reviews
Alaska Airlines
8.1
Very good
9,198 reviews
Check prices

Entertainment

7.3

Comfort

7.9

Food

7.3

Overall

8.1

Boarding

8.2

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Delta
8.0
Very good
10,410 reviews
Alaska Airlines
8.1
Very good
9,198 reviews
Check prices

Entertainment

7.3

Comfort

7.9

Food

7.3

Overall

8.1

Boarding

8.2

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

United Airlines
7.4
Good
10,755 reviews
Alaska Airlines
8.1
Very good
9,198 reviews
Check prices

Entertainment

7.3

Comfort

7.9

Food

7.3

Overall

8.1

Boarding

8.2

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

American Airlines
7.3
Good
14,260 reviews
Alaska Airlines
8.1
Very good
9,198 reviews
Check prices

Entertainment

7.3

Comfort

7.9

Food

7.3

Overall

8.1

Boarding

8.2

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Spirit Airlines
6.4
Okay
8,602 reviews
Alaska Airlines
8.1
Very good
9,198 reviews
Check prices

Entertainment

7.3

Comfort

7.9

Food

7.3

Overall

8.1

Boarding

8.2

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Related info for your journey

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

  • Can I find flights from St. Louis to Boise for under $300 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Boise for under $300. The cheapest flight booked recently is on Spirit Airlines for just $217, but on average you can expect to pay $304.

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

    According to our current data, Spirit Airlines ($217), Delta ($302), and American Airlines ($330) offers the cheapest pricing from St. Louis to Boise. Spirit Airlines is priced at 53% lower than the current average price of a flight leaving 3 months from now.

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

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $64. American Airlines flights start at $151 while deals on Delta start at $183 one-way.

  • What does STL to BOI mean?

    Great question - STL to BOI just means Lambert-St Louis Airport to Boise Air Term. Gowen Fld Airport. Now you’ll know what these unique codes when you look for flights!

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

    The amount of baggage you can bring on your St. Louis to Boise 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 Boise with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Boise 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 Boise that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Boise 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 Boise that allow pets onboard?

    Many airlines flying from St. Louis to Boise 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 Boise?

    Yes, you can often find last-minute deals on St. Louis to Boise 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 Boise flight deals updated?

    The St. Louis to Boise 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 Boise?

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

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

    Currently, December is the cheapest month in which you can book a flight from St. Louis to Boise (average of $311). Flying from St. Louis to Boise in June is currently the most expensive (average of $452). 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

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

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Top 5 airlines flying from St. Louis to Boise

Discover the top 5 airlines that operate flights from St. Louis to Boise. 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
Spirit AirlinesCheapest$193Average$239FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
DeltaCheapest$296Average$464FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Alaska AirlinesCheapest$304Average$388FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
United AirlinesCheapest$316Average$513FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$319Average$528FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
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Search flights from St. Louis to Boise by cabin class

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

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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 Boise?

Deals for St. Louis to Boise flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Cheapflights simply makes it quick and affordable to book flights from St. Louis to Boise by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Need flexible booking options for your flight to Boise from St. Louis? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Of course! You can now track prices for flights from St. Louis to Boise and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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