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$150+ Cheap flights from Boise to St. Louis (BOI - STL)

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 11/25. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — STL
Oct 28 — Nov 41
Mon 10/28
Mon 11/4
1 adult, Economy
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BOI - STL
Oct 28 - Nov 4

Find cheap flights from Boise to St. Louis with Cheapflights

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The best prices from Boise Air Term. Gowen Fld to Lambert-St Louis are usually found in February or August, booked 58 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 October 23, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

March

Cheapest in

February

Round-trip from

$320
(Delta)

One-way from

$150
(Delta)
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Lambert-St Louis flight deals.
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Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Lambert-St Louis flights.
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High demand for flights, 23% potential price rise
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Best time to find cheap flights, 22% 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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Find flight deals from Boise to St. Louis

Cheapest flights from Boise to St. Louis
Explore the most affordable flight options available from Boise to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 23, 2024.

This Delta deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/195:17 pmBOI - STL
1 stop6h 25mDelta
Wed 1/226:30 amSTL - BOI
1 stop7h 15mDelta
Deal found 10/23$300
This Southwest deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/206:25 amBOI - STL
1 stop7h 50mSouthwest
Tue 1/2111:10 amSTL - BOI
2 stops12h 30mSouthwest
Deal found 10/23$305
This Alaska Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/142:46 pmBOI - STL
1 stop8h 13mAlaska Airlines
Mon 11/187:00 amSTL - BOI
1 stop7h 51mAlaska Airlines
Deal found 10/22$340
This United deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/116:53 pmBOI - STL
3 stops24h 48mUnited Airlines
Sun 12/157:00 amSTL - BOI
2 stops31h 28mUnited Airlines
Deal found 10/23$609
This Mytrip deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1510:50 pmBOI - STL
3 stops35h 55mMultiple Airlines
Sun 12/2912:15 pmSTL - BOI
3 stops23h 47mMultiple Airlines
Deal found 10/22$701
This Mytrip deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2612:24 pmBOI - STL
3 stops26h 57mSpirit Airlines
Mon 10/288:33 amSTL - BOI
2 stops27h 55mSpirit Airlines
Deal found 10/22$753

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 2,464,459 searches. Data last updated October 23, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$320 - $701

Route

Depart

Return

Price

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Sat 12/7

1 stop8h 01m

Lambert-St Louis

Sat 12/14

1 stop5h 55m

$320

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Wed 12/11

1 stop9h 25m

Lambert-St Louis

Sun 12/15

1 stop6h 05m

$353

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Fri 2/14

1 stop13h 19m

Lambert-St Louis

Mon 2/17

1 stop8h 20m

$406

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Fri 1/17

1 stop5h 14m

Lambert-St Louis

Mon 1/20

2 stops13h 31m

$425

Boise Air Term. Gowen FldLambert-St Louis

BOI - STL

BOISTL

Boise Air Term. Gowen Fld

Sun 12/15

3 stops35h 55m

Lambert-St Louis

Sun 12/29

3 stops23h 47m

$701

Flights are sorted by cheapest first

Deals found on 10/22

Compare providers for flights from Boise to St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boise to St. Louis in October.
ProviderPrice AccuracyTrust Score*Cancellation Policy
ExpediaPrice Accuracy2 starsTrust Score*3 starsCancellation PolicyAirline Policy
FlightHubPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy
eDreamsPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boise-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boise-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boise-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boise-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boise-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

Travel insights for flights from Boise to St. Louis

Get recent, data-driven insights about flights from Boise to St. Louis including ideal travel times, pricing trends, and more.

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 October 18, 2024.

To ensure you get the cheapest price possible for a flight from Boise to St. Louis, you should look to book at least 58 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.

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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 $308). Flying from Boise to St. Louis in March is currently the most expensive (average of $357). 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.

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

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 October 23, 2024.

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 18% versus a flight in the morning.

Rainfall in St. Louis by month

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

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

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

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 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 October 23, 2024.
Get a feel of what it's like to fly with Delta, Alaska Airlines and United 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.
Southwest
8.1
Very good
5,156 reviews

Food

7.2

Comfort

8.1

Entertainment

7.7

Boarding

8.3

Overall

8.1

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.1
Very good
5,156 reviews
Southwest
8.1
Very good
5,156 reviews

Food

7.2

Comfort

8.1

Entertainment

7.7

Boarding

8.3

Overall

8.1

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Alaska Airlines
8.0
Very good
9,411 reviews
Southwest
8.1
Very good
5,156 reviews

Food

7.2

Comfort

8.1

Entertainment

7.7

Boarding

8.3

Overall

8.1

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Delta
8.0
Very good
8,885 reviews
Southwest
8.1
Very good
5,156 reviews

Food

7.2

Comfort

8.1

Entertainment

7.7

Boarding

8.3

Overall

8.1

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

United Airlines
7.4
Good
9,283 reviews
Southwest
8.1
Very good
5,156 reviews

Food

7.2

Comfort

8.1

Entertainment

7.7

Boarding

8.3

Overall

8.1

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
5,156 reviews

Food

7.2

Comfort

8.1

Entertainment

7.7

Boarding

8.3

Overall

8.1

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

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 $400 on Cheapflights?

    Yes, there are multiple flights from Boise to St. Louis for under $400. The cheapest flight booked recently is on Delta for just $320, but on average you can expect to pay $441.

  • Are there last-minute flights available from Boise to St. Louis for under $700?

    There are currently 6+ open flights from Boise to St. Louis within the next 7 days for less than $700.

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

    Currently priced at $320, Delta will fly you from Boise to St. Louis and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Southwest and Alaska Airlines - these airlines can fly you to your destination from $353 and $406, respectively. You may be able to fly from Boise to St. Louis for 28% 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 Delta ($150), Spirit Airlines ($170), and American Airlines ($203).

  • 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 10/23.

  • 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 $308). Flying from Boise to St. Louis in March is currently the most expensive (average of $357). 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

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Top 4 airlines flying from Boise to St. Louis

Discover the top 4 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 2,464,459 searches. Data last updated October 23, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$286Average$434FlexibilityNo cancel feeOn-time71%
DeltaCheapest$288Average$440FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$336Average$557FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$354Average$447FlexibilityNo cancel feeOn-time75%
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