$146+ 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 7/15. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BOI
Jul 9 — Jul 161
Round-trip
1 adult, Economy
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Cheapest flights from St. Louis to BoiseExplore 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 June 9, 2026.
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 June 9, 2026.
This CheapOair deal was found by Cheapflights users on 6/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/158:08 pm
STL
- BOI
1 stop17h 21m
Frontier
Tue 7/211:24 pm
BOI
- STL
1 stop4h 59m
Frontier
Deal found 6/7![Frontier logo]()
$280
This CheapOair deal was found by Cheapflights users on 6/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/248:08 pm
STL
- BOI
1 stop17h 22m
Frontier
Thu 7/301:24 pm
BOI
- STL
1 stop4h 59m
Frontier
Deal found 6/7![Frontier logo]()
$339
This CheapOair deal was found by Cheapflights users on 6/5. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/58:08 pm
STL
- BOI
1 stop17h 01m
Frontier
Sun 9/1312:59 pm
BOI
- STL
1 stop5h 16m
Frontier
Deal found 6/5![Frontier logo]()
$364
This American Airlines deal was found by Cheapflights users on 6/8. 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.
Fri 7/315:30 am
STL
- BOI
1 stop6h 49m
American Airlines
Tue 8/43:10 pm
BOI
- STL
1 stop8h 06m
American Airlines
Deal found 6/8![American Airlines logo]()
$365
This Booking.com deal was found by Cheapflights users on 6/7. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/58:08 pm
STL
- BOI
1 stop17h 01m
Multiple Airlines
Sun 9/62:17 pm
BOI
- STL
1 stop8h 42m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$371
This Priceline deal was found by Cheapflights users on 6/7. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:35 am
STL
- BOI
1 stop8h 47m
Multiple Airlines
Sun 9/61:04 pm
BOI
- STL
1 stop5h 19m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$384
This Southwest deal was found by Cheapflights users on 6/8. 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.
Fri 8/146:25 pm
STL
- BOI
1 stop6h 10m
Southwest
Mon 8/173:50 pm
BOI
- STL
1 stop7h 45m
Southwest
Deal found 6/8![Southwest logo]()
$394
This Booking.com deal was found by Cheapflights users on 6/6. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/47:38 pm
STL
- BOI
1 stop17h 51m
Multiple Airlines
Fri 7/104:27 pm
BOI
- STL
1 stop6h 32m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$397
Best flights from St. Louis to BoiseDiscover carefully curated flight deals from St. Louis to Boise that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 9, 2026.
Discover carefully curated flight deals from St. Louis to Boise that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 9, 2026.
This Southwest deal was found by Cheapflights users on 6/8. 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.
Fri 8/146:25 pm
STL
- BOI
1 stop6h 10m
Southwest
Mon 8/173:50 pm
BOI
- STL
1 stop7h 45m
Southwest
Deal found 6/8![Southwest logo]()
$394
This KAYAK deal was found by Cheapflights users on 6/4. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/77:07 am
STL
- BOI
1 stop8h 39m
American Airlines
Fri 7/103:10 pm
BOI
- STL
1 stop8h 06m
American Airlines
Deal found 6/4![American Airlines logo]()
$430
This Alaska Airlines deal was found by Cheapflights users on 6/6. 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.
Fri 9/46:08 pm
STL
- BOI
2 stops16h 44m
Alaska Airlines
Sun 9/64:17 pm
BOI
- STL
1 stop6h 42m
Alaska Airlines
Deal found 6/6![Alaska Airlines logo]()
$498
This United Airlines deal was found by Cheapflights users on 6/7. 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.
Sat 9/58:00 am
STL
- BOI
2 stops10h 58m
United Airlines
Sun 9/66:30 am
BOI
- STL
2 stops8h 08m
United Airlines
Deal found 6/7![United Airlines logo]()
$503
This Southwest deal was found by Cheapflights users on 6/6. 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.
Sat 7/48:25 am
STL
- BOI
2 stops10h 30m
Southwest
Fri 7/105:25 am
BOI
- STL
2 stops12h 05m
Southwest
Deal found 6/6![Southwest logo]()
$451
This Southwest deal was found by Cheapflights users on 6/5. 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.
Fri 7/1012:40 pm
STL
- BOI
1 stop5h 35m
Southwest
Fri 7/175:55 pm
BOI
- STL
1 stop7h 00m
Southwest
Deal found 6/5![Southwest logo]()
$467
This CheapOair deal was found by Cheapflights users on 6/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/306:02 am
STL
- BOI
1 stop7h 24m
Alaska Airlines
Tue 7/710:52 am
BOI
- STL
2 stops12h 07m
Alaska Airlines
Deal found 6/3![Alaska Airlines logo]()
$526
This Alaska Airlines deal was found by Cheapflights users on 6/6. 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.
Mon 8/37:56 pm
STL
- BOI
1 stop14h 44m
Alaska Airlines
Sat 8/88:28 pm
BOI
- STL
2 stops10h 55m
Alaska Airlines
Deal found 6/6![Alaska Airlines logo]()
$572
This Southwest deal was found by Cheapflights users on 6/4. 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.
Thu 7/26:40 pm
STL
- BOI
2 stops8h 05m
Southwest
Thu 7/94:25 pm
BOI
- STL
2 stops7h 15m
Southwest
Deal found 6/4![Southwest logo]()
$523
This Southwest deal was found by Cheapflights users on 6/7. 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 6/248:25 am
STL
- BOI
2 stops8h 00m
Southwest
Thu 7/304:25 pm
BOI
- STL
2 stops7h 15m
Southwest
Deal found 6/7![Southwest logo]()
$537
Last-minute flights from St. Louis to BoiseDiscover last-minute flight deals from St. Louis to Boise. Data last updated June 9, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Boise. Data last updated June 9, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 6/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/248:08 pm
STL
- BOI
1 stop17h 22m
Frontier
Thu 7/301:24 pm
BOI
- STL
1 stop4h 59m
Frontier
Deal found 6/7![Frontier logo]()
$339
This Delta deal was found by Cheapflights users on 6/3. 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 6/307:55 pm
STL
- BOI
1 stop5h 14m
Delta
Tue 7/76:42 pm
BOI
- STL
1 stop4h 59m
Delta
Deal found 6/3![Delta logo]()
$403
This Expedia deal was found by Cheapflights users on 6/4. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/25:37 pm
STL
- BOI
1 stop7h 11m
Multiple Airlines
Thu 7/91:24 pm
BOI
- STL
1 stop4h 59m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$408
This Booking.com deal was found by Cheapflights users on 6/6. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/47:38 pm
STL
- BOI
1 stop17h 51m
Multiple Airlines
Fri 7/104:27 pm
BOI
- STL
1 stop6h 32m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$397
This Booking.com deal was found by Cheapflights users on 6/8. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/138:08 pm
STL
- BOI
1 stop17h 21m
Multiple Airlines
Wed 7/224:27 pm
BOI
- STL
1 stop6h 32m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$421
This Delta deal was found by Cheapflights users on 6/8. 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 7/147:55 pm
STL
- BOI
1 stop5h 10m
Delta
Wed 7/226:42 pm
BOI
- STL
1 stop4h 59m
Delta
Deal found 6/8![Delta logo]()
$407
This CheapOair deal was found by Cheapflights users on 6/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/158:08 pm
STL
- BOI
1 stop17h 21m
Frontier
Tue 7/211:24 pm
BOI
- STL
1 stop4h 59m
Frontier
Deal found 6/7![Frontier logo]()
$280
This American Airlines deal was found by Cheapflights users on 6/8. 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.
Fri 7/315:30 am
STL
- BOI
1 stop6h 49m
American Airlines
Tue 8/43:10 pm
BOI
- STL
1 stop8h 06m
American Airlines
Deal found 6/8![American Airlines logo]()
$365
One-way flights from St. Louis to BoiseSearch for one-way flight options from St. Louis to Boise. Find affordable one-way fares based on user searches. Data last updated June 9, 2026.
Search for one-way flight options from St. Louis to Boise. Find affordable one-way fares based on user searches. Data last updated June 9, 2026.
This CheapOair deal was found by Cheapflights users on 6/4. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/158:08 pm
STL
- BOI
1 stop17h 21m
Frontier
Deal found 6/4![Frontier logo]()
$146
This CheapOair deal was found by Cheapflights users on 6/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/38:08 pm
STL
- BOI
1 stop17h 21m
Frontier
Deal found 6/7![Frontier logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 6/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/88:08 pm
STL
- BOI
1 stop17h 21m
Frontier
Deal found 6/8![Frontier logo]()
$184
This Delta deal was found by Cheapflights users on 6/4. 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 7/77:55 pm
STL
- BOI
1 stop5h 10m
Delta
Deal found 6/4![Delta logo]()
$202
This American Airlines deal was found by Cheapflights users on 6/7. 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.
Tue 7/75:32 am
STL
- BOI
1 stop6h 47m
American Airlines
Deal found 6/7![American Airlines logo]()
$204
This CheapOair deal was found by Cheapflights users on 6/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/137:38 pm
STL
- BOI
1 stop17h 52m
Frontier
Deal found 6/3![Frontier logo]()
$216
This Delta deal was found by Cheapflights users on 6/8. 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.
Thu 7/97:55 pm
STL
- BOI
1 stop5h 10m
Delta
Deal found 6/8![Delta logo]()
$234
This Kiwi.com deal was found by Cheapflights users on 6/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/67:10 pm
STL
- BOI
2 stops18h 19m
Frontier
Deal found 6/8![Frontier logo]()
$250
This American Airlines deal was found by Cheapflights users on 6/6. 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.
Sun 6/285:29 am
STL
- BOI
1 stop6h 49m
American Airlines
Deal found 6/6![American Airlines logo]()
$254
Find 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 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $280 (CheapOair) |
One-way from | $146 (CheapOair) |
Popular in | February |
Cheapest in | January |
Average price | $476 |
Cheapflights Fare Finder
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 2,558,603 searches. Data last updated June 9, 2026.
Use the filters below to find and compare flights from St. Louis to Boise that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisBoise
STL - BOI
STLBOI
Lambert-St Louis
Fri 8/14
6:25 pm-11:35 pm
1 stop6h 10m
Boise Air Term. Gowen Fld
Mon 8/17
3:50 pm-12:35 am
1 stop7h 45m
$394
St. LouisBoise
STL - BOI
STLBOI
Lambert-St Louis
Tue 7/7
7:07 am-2:46 pm
1 stop8h 39m
Boise Air Term. Gowen Fld
Fri 7/10
3:10 pm-12:16 am
1 stop8h 06m
$430
St. LouisBoise
STL - BOI
STLBOI
Lambert-St Louis
Sat 7/4
8:25 am-5:55 pm
2 stops10h 30m
Boise Air Term. Gowen Fld
Fri 7/10
5:25 am-6:30 pm
2 stops12h 05m
$451
Quickest round-trip
St. LouisBoise
STL - BOI
STLBOI
Lambert-St Louis
Fri 7/10
12:40 pm-5:15 pm
1 stop5h 35m
Boise Air Term. Gowen Fld
Fri 7/17
5:55 pm-1:55 am
1 stop7h 00m
$467
St. LouisBoise
STL - BOI
STLBOI
Lambert-St Louis
Fri 9/4
6:08 pm-9:52 am
2 stops16h 44m
Boise Air Term. Gowen Fld
Sun 9/6
4:17 pm-11:59 pm
1 stop6h 42m
$498
St. LouisBoise
STL - BOI
STLBOI
Lambert-St Louis
Sat 9/5
8:00 am-5:58 pm
2 stops10h 58m
Boise Air Term. Gowen Fld
Sun 9/6
6:30 am-3:38 pm
2 stops8h 08m
$503
St. LouisBoise
STL - BOI
STLBOI
Lambert-St Louis
Thu 7/2
6:40 pm-1:45 am
2 stops8h 05m
Boise Air Term. Gowen Fld
Thu 7/9
4:25 pm-12:40 am
2 stops7h 15m
$523
St. LouisBoise
STL - BOI
STLBOI
Lambert-St Louis
Tue 6/30
6:02 am-12:26 pm
1 stop7h 24m
Boise Air Term. Gowen Fld
Tue 7/7
10:52 am-11:59 pm
2 stops12h 07m
$526
St. LouisBoise
STL - BOI
STLBOI
Lambert-St Louis
Wed 6/24
8:25 am-3:25 pm
2 stops8h 00m
Boise Air Term. Gowen Fld
Thu 7/30
4:25 pm-12:40 am
2 stops7h 15m
$537
St. LouisBoise
STL - BOI
STLBOI
Lambert-St Louis
Mon 8/3
7:56 pm-9:40 am
1 stop14h 44m
Boise Air Term. Gowen Fld
Sat 8/8
8:28 pm-8:23 am
2 stops10h 55m
$572
Showing 1-10 of 19 resultsSorted by cheapest first
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 June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- 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.
STL-BOI
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.
Cheapflights Insights
Everything you need to know about your flight from St. Louis to Boise
Prices
More
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 $359). Flying from St. Louis to Boise in February is currently the most expensive (average of $566). 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.
How much does it cost to fly round-trip from St. Louis to Boise?
What’s the top layover airport for flights from St. Louis to Boise?
Share of 1-stop round-trip flights from St. Louis to Boise chosen by Cheapflights users in the past 12 months, using the same layover each way.
Denver (DEN) – chosen by Cheapflights users on 83% of 1-stop itineraries from St. Louis to Boise on Cheapflights.
What’s the cheapest layover airport for flights from St. Louis to Boise?
Average round-trip fare for 1-stop flights from St. Louis to Boise, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Seattle (SEA) is the most affordable 1-stop option, with an average round-trip price of $395.
What’s the fastest layover option from St. Louis to Boise?
Shortest average travel time for 1-stop one-way flights from St. Louis to Boise, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 7h 37m.
Which airport typically offers the quickest layover for flights from St. Louis to Boise?
Average layover duration for 1-stop one-way flights from St. Louis to Boise, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Seattle (SEA) offer the fastest connection on this route, with an average layover time of 1h 36m.
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 9, 2026.
Read reviews from past customers who have flown Southwest,Delta, andUnited Airlines from St. Louis to Boise. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Overall
7.9
Entertainment
7.5
Food
7.0
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Boarding
8.1
Overall
7.9
Entertainment
7.5
Food
7.0
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Boarding
8.1
Overall
7.9
Entertainment
7.5
Food
7.0
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Boarding
8.1
Overall
7.9
Entertainment
7.5
Food
7.0
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Boarding
8.1
Overall
7.9
Entertainment
7.5
Food
7.0
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
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.
Traveling to a place near Boise?
Book flights to Boise if you plan to visit one of these locationsMeridian
Nampa
Caldwell
Ontario
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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 2,558,603 searches. Data last updated June 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$186 | Average$391 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$240 | Average$396 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$296 | Average$462 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$338 | Average$424 | FlexibilityNo cancel fee | On-time69% |