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Cheap flights from Boise to St. Louis (BOI - STL) from $59

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 6/25. 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.
BOI — STL
Jun 7 — Jun 141
From?
To?
Fri 6/7
Fri 6/14
1 adult, Economy
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The best prices from Boise Air Term. Gowen Fld to Lambert-St Louis are usually found in February or December, booked 5 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from Boise to St. Louis

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

February

Round-trip from

$319

One-way from

$151
High demand for flights, 19% potential price rise
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Best time to find cheap flights, 26% potential price drop
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From Boise Air Term. Gowen Fld to Lambert-St Louis
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One-way flight from Boise Air Term. Gowen Fld to Lambert-St Louis
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What is the cheapest day to fly round-trip from Boise to St. Louis?

Departing on a Monday is a good option for securing a great price. You can expect to save up to 63% when planning your travel around this day of the week.

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

Flights from Boise to St. Louis lean towards being more expensive in March. Prices are generally better when you fly from Boise to St. Louis in February, with the cheapest ticket starting at $323.

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

When flying from Boise to St. Louis, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 15% versus a flight at noon.

Cheap Delta flights from Boise to St. Louis

Explore cheap flight options specifically provided by Delta for the route between Boise and St. Louis. 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.
Find some of the cheapest Delta flights traveling from Boise to St. Louis. Deals update often to give you more flight options matching your criteria
Wed 6/265:57 pmBOI - STL
1 stop6h 01mDelta
Wed 7/105:52 pmSTL - BOI
1 stop7h 18mDelta
Deal found 5/31$302
Wed 8/146:26 pmBOI - STL
1 stop5h 29mDelta
Fri 12/132:20 pmSTL - BOI
1 stop5h 35mDelta
Deal found 6/1$334
Thu 8/811:39 pmBOI - STL
1 stop8h 23mDelta
Sun 8/115:58 pmSTL - BOI
1 stop7h 12mDelta
Deal found 5/31$346
Fri 9/275:59 pmBOI - STL
1 stop5h 31mDelta
Mon 9/303:30 pmSTL - BOI
2 stops9h 29mDelta
Deal found 5/31$350
Wed 8/142:36 pmBOI - STL
2 stops9h 19mDelta
Fri 12/132:20 pmSTL - BOI
1 stop5h 35mDelta
Deal found 5/31$355
Wed 6/265:57 pmBOI - STL
1 stop6h 01mDelta
Thu 6/277:55 amSTL - BOI
1 stop5h 15mDelta
Deal found 5/31$364
Tue 7/25:30 amBOI - STL
1 stop8h 03mDelta
Sun 7/76:01 pmSTL - BOI
1 stop7h 59mDelta
Deal found 5/31$412
Wed 6/195:57 pmBOI - STL
1 stop6h 01mDelta
Thu 6/277:55 amSTL - BOI
1 stop5h 15mDelta
Deal found 5/31$456
Wed 8/72:36 pmBOI - STL
2 stops9h 19mDelta
Sun 8/115:58 pmSTL - BOI
1 stop7h 12mDelta
Deal found 5/31$461

Cheap Spirit Airlines flights from Boise to St. Louis

Explore cheap flight options specifically provided by Spirit Airlines for the route between Boise and St. Louis. 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.
Have a look at some of the cheapest available Spirit Airlines flights departing from Boise and landing in St. Louis. Make sure to examine the flight information before completing your reservation.
Fri 9/2710:59 pmBOI - STL
1 stop15h 42mSpirit Airlines
Mon 9/303:02 pmSTL - BOI
1 stop26h 28mSpirit Airlines
Deal found 5/31$217
Thu 6/209:13 pmBOI - STL
1 stop16h 03mSpirit Airlines
Mon 6/242:41 pmSTL - BOI
1 stop6h 42mSpirit Airlines
Deal found 5/30$292
Fri 9/2710:59 pmBOI - STL
1 stop15h 42mSpirit Airlines
Mon 9/303:02 pmSTL - BOI
1 stop6h 43mSpirit Airlines
Deal found 5/31$297
Wed 6/264:03 pmBOI - STL
3 stops24h 25mSpirit Airlines
Fri 6/283:07 pmSTL - BOI
1 stop6h 16mSpirit Airlines
Deal found 5/31$324

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

Find cheap flight options from Boise to St. Louis 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.
Listed are some of the best fares we've found on flights departing from Boise to St. Louis in 2024. For more flight deals, be sure to check back very soon.
Thu 6/277:27 pmBOI - STL
1 stop17h 49mMultiple Airlines
Sun 6/305:45 pmSTL - BOI
2 stops25h 44mMultiple Airlines
Deal found 6/1$322
Thu 6/279:13 pmBOI - STL
1 stop16h 03mMultiple Airlines
Sun 6/3012:15 pmSTL - BOI
3 stops33h 08mMultiple Airlines
Deal found 6/1$356
Mon 6/245:57 pmBOI - STL
1 stop6h 01mDelta
Tue 6/256:25 pmSTL - BOI
1 stop6h 37mDelta
Deal found 6/1$364
Thu 6/277:27 pmBOI - STL
2 stops16h 13mMultiple Airlines
Sun 6/3012:15 pmSTL - BOI
3 stops31h 14mMultiple Airlines
Deal found 6/1$386
Thu 6/277:27 pmBOI - STL
3 stops23h 28mMultiple Airlines
Sun 6/3012:15 pmSTL - BOI
3 stops31h 14mMultiple Airlines
Deal found 6/1$439
Wed 6/195:57 pmBOI - STL
1 stop6h 01mDelta
Thu 6/277:55 amSTL - BOI
1 stop5h 15mDelta
Deal found 5/31$456
Mon 6/243:59 pmBOI - STL
1 stop7h 00mAlaska Airlines
Tue 6/257:00 amSTL - BOI
2 stops16h 05mAlaska Airlines
Deal found 6/1$517
Thu 6/273:59 pmBOI - STL
1 stop7h 00mAlaska Airlines
Sun 6/307:00 amSTL - BOI
1 stop15h 55mAlaska Airlines
Deal found 6/1$554
Wed 6/196:35 amBOI - STL
2 stops11h 42mAmerican Airlines
Thu 6/275:27 amSTL - BOI
1 stop6h 33mAmerican Airlines
Deal found 5/31$595

Boise to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between Boise and St. Louis 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.
Listed are some of the best fares we've found on flights departing from Boise to St. Louis in 2024. For more flight deals, be sure to check back very soon.
Fri 9/2710:59 pmBOI - STL
1 stop15h 42mSpirit Airlines
Mon 9/303:02 pmSTL - BOI
1 stop26h 28mSpirit Airlines
Deal found 5/31$217
Thu 9/59:35 pmBOI - STL
1 stop15h 37mSpirit Airlines
Sun 9/86:18 pmSTL - BOI
1 stop27h 27mSpirit Airlines
Deal found 6/1$252
Sun 9/1510:59 pmBOI - STL
1 stop14h 13mSpirit Airlines
Fri 9/203:02 pmSTL - BOI
1 stop6h 43mSpirit Airlines
Deal found 6/1$257
Thu 6/277:27 pmBOI - STL
1 stop17h 49mMultiple Airlines
Sun 6/305:45 pmSTL - BOI
2 stops25h 44mMultiple Airlines
Deal found 6/1$322
Fri 7/268:04 pmBOI - STL
2 stops23h 46mMultiple Airlines
Mon 7/294:02 pmSTL - BOI
1 stop21h 11mMultiple Airlines
Deal found 6/1$325
Wed 8/146:26 pmBOI - STL
1 stop5h 29mDelta
Fri 12/132:20 pmSTL - BOI
1 stop5h 35mDelta
Deal found 6/1$334
Fri 9/273:25 pmBOI - STL
1 stop5h 06mDelta
Mon 9/303:30 pmSTL - BOI
2 stops9h 29mDelta
Deal found 5/31$350
Wed 8/142:36 pmBOI - STL
2 stops9h 19mDelta
Fri 12/132:20 pmSTL - BOI
1 stop5h 35mDelta
Deal found 6/1$355
Thu 6/279:13 pmBOI - STL
1 stop16h 03mMultiple Airlines
Sun 6/3012:15 pmSTL - BOI
3 stops33h 08mMultiple Airlines
Deal found 6/1$356

One-way flights to St. Louis from Boise

Search for one-way flight options from Boise to St. Louis. 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 Boise to St. Louis. For those needing a return trip from Boise, there is a search form available above.
Tue 6/259:13 pmBOI - STL
1 stop14h 52mSpirit Airlines
Deal found 5/31$59
Sun 6/99:13 pmBOI - STL
1 stop15h 38mSpirit Airlines
Deal found 5/31$85
Wed 8/71:44 pmBOI - STL
1 stop5h 59mAmerican Airlines
Deal found 5/31$151
Thu 8/86:26 pmBOI - STL
1 stop5h 29mDelta
Deal found 5/31$163
Wed 8/71:03 pmBOI - STL
3 stops27h 26mSpirit Airlines
Deal found 5/31$165
Sun 6/309:13 pmBOI - STL
1 stop15h 38mSpirit Airlines
Deal found 5/31$171
Sun 6/910:55 amBOI - STL
2 stops25h 56mMultiple Airlines
Deal found 5/31$223
Wed 8/78:17 amBOI - STL
2 stops12h 54mUnited Airlines
Deal found 5/31$236
Sun 6/3010:55 amBOI - STL
2 stops25h 56mMultiple Airlines
Deal found 5/31$242

Find flights from Boise to St. Louis within your budget

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

$213 - $484

Route

Depart

Return

Price

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Tue 6/25

1 stop14h 52m

Lambert-St Louis

Fri 7/12

1 stop24h 49m

$213

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Fri 9/27

1 stop15h 42m

Lambert-St Louis

Mon 9/30

1 stop26h 28m

$217

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Thu 6/20

1 stop16h 03m

Lambert-St Louis

Mon 6/24

1 stop6h 42m

$292

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Fri 9/27

1 stop15h 42m

Lambert-St Louis

Mon 9/30

1 stop6h 43m

$297

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Wed 6/26

1 stop6h 01m

Lambert-St Louis

Wed 7/10

1 stop7h 18m

$302

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Tue 7/2

1 stop14h 52m

Lambert-St Louis

Sun 7/7

2 stops27h 08m

$311

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Thu 7/25

1 stop7h 38m

Lambert-St Louis

Sun 7/28

1 stop6h 34m

$366

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Fri 9/27

2 stops10h 54m

Lambert-St Louis

Mon 9/30

2 stops12h 13m

$426

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Wed 8/14

2 stops9h 35m

Lambert-St Louis

Fri 12/13

2 stops9h 00m

$484

Flights are sorted by cheapest first

Deals found on 5/31

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

Use this chart to determine the optimal time to book a round-trip flight from Boise to St. Louis. Price data was last updated on May 31, 2024.
To ensure you get the cheapest price possible for a flight from Boise to St. Louis, you should look to book at least 5 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Search Deals

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

Use this chart to determine the cheapest time to fly round-trip from Boise to St. Louis. Price data was last updated on May 26, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Boise to St. Louis flight should consider departing on Wednesday mornings when fares are most often at their lowest. Sunday 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 Boise to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Boise 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 St. Louis by month

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

STL

Temperature

32 - 80.6 °F

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated June 2, 2024.
Get a feel of what it's like to fly with Delta, Spirit Airlines and Alaska Airlines from Boise to St. Louis by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,198 reviews
Check prices

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.1

Entertainment

7.3

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

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.1

Entertainment

7.3

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

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.1

Entertainment

7.3

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
10,754 reviews
Alaska Airlines
8.1
Very good
9,198 reviews
Check prices

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.1

Entertainment

7.3

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
14,268 reviews
Alaska Airlines
8.1
Very good
9,198 reviews
Check prices

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.1

Entertainment

7.3

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

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.1

Entertainment

7.3

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 Boise to St. Louis. 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 Boise to St. Louis for under $300 on Cheapflights?

    Yes, there are multiple flights from Boise to St. Louis for under $300. The cheapest flight booked recently is on Multiple Airlines for just $213, but on average you can expect to pay $327.

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

    Currently priced at $217, Spirit Airlines will fly you from Boise to St. Louis and back. In addition to Spirit Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and American Airlines - these airlines can fly you to your destination from $302 and $366, respectively. You may be able to fly from Boise to St. Louis for 53% less than the average price by searching for these airlines.

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

    The cheapest airlines for a one-way flight from Boise to St. Louis are Spirit Airlines ($59), American Airlines ($151), and Delta ($163).

  • What does BOI to STL mean?

    BOI and STL are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. BOI to STL refers to a flight route from Boise Air Term. Gowen Fld Airport to Lambert-St Louis Airport.

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

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

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

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

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

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

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

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

    Many airlines flying from Boise to St. Louis 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 Boise to St. Louis?

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

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

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

    Before booking your flight from Boise to St. Louis 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 Boise to St. Louis?

    Currently, September is the cheapest month in which you can book a flight from Boise to St. Louis (average of $319). Flying from Boise to St. Louis in July is currently the most expensive (average of $366). 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 Boise to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.

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Top 5 airlines flying from Boise to St. Louis

Discover the top 5 airlines that operate flights from Boise to St. Louis. 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$272Average$344FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
American AirlinesCheapest$288Average$450FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$297Average$462FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$340Average$643FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Alaska AirlinesCheapest$354Average$373FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
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Search flights from Boise to St. Louis by cabin class

Find flights from Boise to St. Louis, 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 Boise to St. Louis

Find hourly flight availability from Boise to St. Louis. 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.
100%of flight departuresEarly morningMidnight to 6 am
0%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

Weekly flight availability from Boise to St. Louis

Explore weekly flight availability from Boise to St. Louis. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 2, 2024.
Sunday1daily flight
Monday0daily flights
Tuesday0daily flights
Wednesday0daily flights
Thursday0daily flights
Friday0daily flights
Saturday0daily flights

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Fly with Cheapflights

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

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

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

Yes, we can. To see specific flights from Boise to St. Louis with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, Cheapflights offers price alerts on Boise to St. Louis 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.

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