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

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.
STL — BOI
nov. 5 — nov. 121
1 adult
mar. 11/5
mar. 11/12
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The best prices from Lambert-St Louis to Boise Air Term. Gowen Fld are usually found in October or January, booked 26 days in advance, depart on a Wednesday or Tuesday 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 octubre 31, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

March

Cheapest in

October

Round-trip from

$320
(Delta)

One-way from

$150
(Delta)
Provider with most accurate pricing for Lambert-St Louis-Boise Air Term. Gowen Fld flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Boise Air Term. Gowen Fld flights.
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High demand for flights, 32% potential price rise
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Best time to find cheap flights, 23% 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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Find flight deals from St. Louis to Boise

Cheapest flights from St. Louis to Boise
Explore the most affordable flight options available from St. Louis to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octubre 31, 2024.

This United Airlines deal was found by Cheapflights users on 10/30. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/61:39 pmSTL - BOI
1 stop5h 12mUnited Airlines
dom. 12/82:35 pmBOI - STL
1 stop5h 06mUnited Airlines
Deal found 10/30$340
This Delta deal was found by Cheapflights users on 10/30. 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.
jue. 12/192:15 pmSTL - BOI
2 stops10h 44mDelta
lun. 12/2311:30 pmBOI - STL
1 stop8h 38mDelta
Deal found 10/30$347
This Alaska Airlines deal was found by Cheapflights users on 10/30. 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.
jue. 12/197:00 amSTL - BOI
1 stop8h 54mAlaska Airlines
lun. 12/238:00 pmBOI - STL
1 stop26h 59mAlaska Airlines
Deal found 10/30$411
This Mytrip deal was found by Cheapflights users on 10/30. 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.
vie. 12/612:15 pmSTL - BOI
3 stops27h 35mMultiple Airlines
dom. 12/811:57 amBOI - STL
3 stops27h 48mMultiple Airlines
Deal found 10/30$455
This Southwest deal was found by Cheapflights users on 10/30. 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.
mié. 11/206:00 amSTL - BOI
2 stops9h 20mSouthwest
mié. 11/271:15 pmBOI - STL
1 stop10h 20mSouthwest
Deal found 10/30$458
This American Airlines deal was found by Cheapflights users on 10/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/255:57 pmSTL - BOI
1 stop6h 39mAmerican Airlines
dom. 12/112:45 amBOI - STL
1 stop9h 01mAmerican Airlines
Deal found 10/30$511
This FareScan deal was found by Cheapflights users on 10/30. 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 FareScan is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/305:21 pmSTL - BOI
2 stops18h 35mSpirit Airlines
vie. 12/611:57 amBOI - STL
2 stops26h 24mSpirit Airlines
Deal found 10/30$668

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 2,570,725 searches. Data last updated octubre 31, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisBoise

STL - BOI

STLBOI

Lambert-St Louis

lun. 11/25

7:10 pm-12:05 am

1 stop5h 55m

$150

St. LouisBoise

STL - BOI

STLBOI

Lambert-St Louis

mar. 12/3

5:21 pm-2:50 pm

2 stops22h 29m

$152

St. LouisBoise

STL - BOI

STLBOI

Lambert-St Louis

mar. 12/3

4:03 pm-9:52 pm

1 stop6h 49m

$203

St. LouisBoise

STL - BOI

STLBOI

Lambert-St Louis

sáb. 11/30

5:00 am-11:30 am

1 stop7h 30m

$388

St. LouisBoise

STL - BOI

STLBOI

Lambert-St Louis

sáb. 11/30

1:00 pm-10:56 am

3 stops22h 56m

$407

St. LouisBoise

STL - BOI

STLBOI

Lambert-St Louis

sáb. 1/18

6:30 am-12:45 pm

1 stop7h 15m

Boise Air Term. Gowen Fld

sáb. 1/25

3:25 pm-9:42 pm

1 stop5h 17m

$320

St. LouisBoise

STL - BOI

STLBOI

Lambert-St Louis

sáb. 1/18

9:25 am-7:30 pm

2 stops11h 05m

Boise Air Term. Gowen Fld

sáb. 1/25

6:30 am-3:45 pm

1 stop8h 15m

$325

St. LouisBoise

STL - BOI

STLBOI

Lambert-St Louis

jue. 12/19

7:00 am-2:54 pm

1 stop8h 54m

Boise Air Term. Gowen Fld

lun. 12/23

8:00 pm-11:59 pm

1 stop26h 59m

$411

St. LouisBoise

STL - BOI

STLBOI

Lambert-St Louis

vie. 11/15

1:00 pm-10:56 am

3 stops22h 56m

Boise Air Term. Gowen Fld

mar. 11/19

11:51 am-12:10 pm

3 stops47h 19m

$437

St. LouisBoise

STL - BOI

STLBOI

Lambert-St Louis

lun. 11/25

1:39 pm-9:58 pm

2 stops9h 19m

Boise Air Term. Gowen Fld

lun. 12/2

6:55 pm-12:43 pm

2 stops16h 48m

$469

Flights are sorted by cheapest first

Deals found on 10/30

Showing 1-10 of 12 results
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Compare providers for flights from St. Louis to Boise

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 St. Louis to Boise in October.
ProviderPrice AccuracyTrust Score*Cancellation Policy
ExpediaPrice Accuracy1 starTrust Score*3 starsCancellation PolicyAirline Policy
FlightHubPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy
eDreamsPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy
PricelinePrice Accuracy1 starTrust 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 St. Louis-Boise flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Boise flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Boise flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Boise 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 St. Louis-Boise 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 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.

Travel insights for flights from St. Louis to Boise

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

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 October 25, 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 26 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Find deals

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

Currently, January 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 $436). 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 STL to BOI?

Find hourly flight availability from St. Louis to Boise. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated octubre 31, 2024.

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 14% versus a flight in the afternoon.

Rainfall in Boise by month

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

In terms of precipitation, rainfall in Boise ranges from 0.2 - 1.6 inches per month. December is typically the wettest month, when rainfall can reach 1.6 in. August is typically the driest time to visit Boise when rainfall is around 0.2 in.

Temperature in Boise by month

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

If weather is an important factor for your trip to Boise, 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 75.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 30.2 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 octubre 31, 2024.
See what other customers who have flown with Delta and United 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.
Southwest
8.1
Very good
5,116 reviews

Comfort

8.1

Crew

8.7

Boarding

8.3

Food

7.2

Entertainment

7.7

Overall

8.1

Reviews

1 / 10

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

Southwest
8.1
Very good
5,116 reviews
Southwest
8.1
Very good
5,116 reviews

Comfort

8.1

Crew

8.7

Boarding

8.3

Food

7.2

Entertainment

7.7

Overall

8.1

Reviews

1 / 10

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

Alaska Airlines
8.0
Very good
9,420 reviews
Southwest
8.1
Very good
5,116 reviews

Comfort

8.1

Crew

8.7

Boarding

8.3

Food

7.2

Entertainment

7.7

Overall

8.1

Reviews

1 / 10

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

Delta
8.0
Very good
8,835 reviews
Southwest
8.1
Very good
5,116 reviews

Comfort

8.1

Crew

8.7

Boarding

8.3

Food

7.2

Entertainment

7.7

Overall

8.1

Reviews

1 / 10

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

United Airlines
7.4
Good
9,240 reviews
Southwest
8.1
Very good
5,116 reviews

Comfort

8.1

Crew

8.7

Boarding

8.3

Food

7.2

Entertainment

7.7

Overall

8.1

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
5,116 reviews

Comfort

8.1

Crew

8.7

Boarding

8.3

Food

7.2

Entertainment

7.7

Overall

8.1

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 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 $400 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Boise for under $400. The cheapest flight booked recently is on Delta for just $320, but on average you can expect to pay $448.

  • Are there last-minute flights available from St. Louis to Boise for under $600?

    There are currently 3+ open flights from St. Louis to Boise within the next 7 days for less than $600.

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

    According to our current data, Delta ($320), Southwest ($325), and Alaska Airlines ($411) offers the cheapest pricing from St. Louis to Boise. Delta is priced at 31% 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 Delta, which is currently one of the cheapest options available, starting at $150. Spirit Airlines flights start at $152 while deals on United Airlines start at $170 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 10/30.

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

    Currently, January 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 $436). 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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Top 4 airlines flying from St. Louis to Boise

Discover the top 4 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 2,570,725 searches. Data last updated octubre 31, 2024.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$240Average$344FlexibilityNo cancel feeOn-time75%
DeltaCheapest$293Average$409FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$296Average$544FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$334Average$552FlexibilityNo cancel feeOn-time71%
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