$253+ Cheap flights from St. Louis to Billings (STL - BIL)
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 8/29. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BIL
jul. 16 — jul. 231
Round-trip
1 adult, Economy
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from St. Louis to BillingsExplore the most affordable flight options available from St. Louis to Billings. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 16, 2026.
Explore the most affordable flight options available from St. Louis to Billings. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/13. 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.
jue. 8/67:10 pm
STL
- BIL
1 stop15h 00m
Multiple Airlines
lun. 8/1710:00 am
BIL
- STL
1 stop7h 15m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$258
This Kiwi.com deal was found by Cheapflights users on 6/13. 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.
dom. 8/97:10 pm
STL
- BIL
1 stop15h 00m
Multiple Airlines
lun. 8/1710:00 am
BIL
- STL
1 stop7h 15m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$294
This Kiwi.com deal was found by Cheapflights users on 6/13. 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.
jue. 8/67:10 pm
STL
- BIL
1 stop15h 00m
Multiple Airlines
vie. 8/1410:00 am
BIL
- STL
1 stop7h 15m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$302
This Delta deal was found by Cheapflights users on 6/13. 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.
mar. 8/45:34 pm
STL
- BIL
1 stop6h 56m
Delta
sáb. 8/155:20 am
BIL
- STL
1 stop7h 18m
Delta
Deal found 6/13![Delta logo]()
$319
This Delta deal was found by Cheapflights users on 6/15. 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. 11/123:45 pm
STL
- BIL
1 stop5h 03m
Delta
lun. 11/166:15 am
BIL
- STL
2 stops8h 43m
Delta
Deal found 6/15![Delta logo]()
$324
This Kiwi.com deal was found by Cheapflights users on 6/13. 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.
dom. 8/97:10 pm
STL
- BIL
1 stop15h 00m
Multiple Airlines
vie. 8/1410:00 am
BIL
- STL
1 stop7h 15m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$337
This Kiwi.com deal was found by Cheapflights users on 6/13. 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.
jue. 8/67:10 pm
STL
- BIL
1 stop15h 00m
Multiple Airlines
dom. 8/165:53 pm
BIL
- STL
2 stops23h 22m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$347
This Kiwi.com deal was found by Cheapflights users on 6/13. 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.
sáb. 8/83:41 pm
STL
- BIL
2 stops26h 22m
Multiple Airlines
lun. 8/1710:00 am
BIL
- STL
1 stop7h 15m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$370
This United Airlines deal was found by Cheapflights users on 6/14. 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. 7/34:48 pm
STL
- BIL
1 stop5h 29m
United Airlines
jue. 7/96:00 pm
BIL
- STL
1 stop4h 57m
United Airlines
Deal found 6/14![United Airlines logo]()
$371
Best flights from St. Louis to BillingsDiscover carefully curated flight deals from St. Louis to Billings that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated junio 16, 2026.
Discover carefully curated flight deals from St. Louis to Billings that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated junio 16, 2026.
This United Airlines deal was found by Cheapflights users on 6/14. 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. 7/34:48 pm
STL
- BIL
1 stop5h 29m
United Airlines
jue. 7/96:00 pm
BIL
- STL
1 stop4h 57m
United Airlines
Deal found 6/14![United Airlines logo]()
$371
This Delta deal was found by Cheapflights users on 6/15. 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. 7/25:36 pm
STL
- BIL
1 stop6h 59m
Delta
mar. 7/76:34 pm
BIL
- STL
1 stop5h 07m
Delta
Deal found 6/15![Delta logo]()
$479
This United Airlines deal was found by Cheapflights users on 6/14. 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. 8/284:40 pm
STL
- BIL
1 stop5h 20m
United Airlines
lun. 8/317:00 am
BIL
- STL
1 stop4h 40m
United Airlines
Deal found 6/14![United Airlines logo]()
$421
This United Airlines deal was found by Cheapflights users on 6/11. 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.
sáb. 7/255:10 am
STL
- BIL
1 stop5h 25m
United Airlines
vie. 7/316:00 pm
BIL
- STL
1 stop4h 57m
United Airlines
Deal found 6/11![United Airlines logo]()
$459
This United Airlines deal was found by Cheapflights users on 6/13. 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. 8/214:40 pm
STL
- BIL
1 stop7h 11m
United Airlines
dom. 8/302:29 pm
BIL
- STL
1 stop5h 17m
United Airlines
Deal found 6/13![United Airlines logo]()
$469
This United Airlines deal was found by Cheapflights users on 6/14. 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.
mar. 11/104:30 pm
STL
- BIL
1 stop7h 11m
United Airlines
jue. 11/127:00 am
BIL
- STL
1 stop4h 43m
United Airlines
Deal found 6/14![United Airlines logo]()
$561
This United Airlines deal was found by Cheapflights users on 6/13. 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.
dom. 8/95:10 am
STL
- BIL
1 stop5h 26m
United Airlines
mié. 8/127:00 am
BIL
- STL
2 stops15h 38m
United Airlines
Deal found 6/13![United Airlines logo]()
$588
Last-minute flights from St. Louis to BillingsDiscover last-minute flight deals from St. Louis to Billings. Data last updated junio 16, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Billings. Data last updated junio 16, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 6/15. 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. 7/25:36 pm
STL
- BIL
1 stop6h 59m
Delta
mar. 7/76:34 pm
BIL
- STL
1 stop5h 07m
Delta
Deal found 6/15![Delta logo]()
$479
This United Airlines deal was found by Cheapflights users on 6/14. 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. 7/34:48 pm
STL
- BIL
1 stop5h 29m
United Airlines
jue. 7/96:00 pm
BIL
- STL
1 stop4h 57m
United Airlines
Deal found 6/14![United Airlines logo]()
$371
This Delta deal was found by Cheapflights users on 6/15. 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.
vie. 7/35:36 pm
STL
- BIL
1 stop6h 59m
Delta
mar. 7/76:34 pm
BIL
- STL
1 stop5h 07m
Delta
Deal found 6/15![Delta logo]()
$424
This Delta deal was found by Cheapflights users on 6/15. 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.
vie. 7/35:36 pm
STL
- BIL
1 stop6h 59m
Delta
dom. 7/55:20 am
BIL
- STL
1 stop7h 16m
Delta
Deal found 6/15![Delta logo]()
$494
This Delta deal was found by Cheapflights users on 6/15. 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.
sáb. 7/410:16 am
STL
- BIL
2 stops10h 46m
Delta
mar. 7/76:34 pm
BIL
- STL
1 stop5h 07m
Delta
Deal found 6/15![Delta logo]()
$429
This Delta deal was found by Cheapflights users on 6/15. 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.
sáb. 7/410:16 am
STL
- BIL
2 stops10h 46m
Delta
dom. 7/55:20 am
BIL
- STL
1 stop7h 16m
Delta
Deal found 6/15![Delta logo]()
$499
This United Airlines deal was found by Cheapflights users on 6/13. 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.
lun. 7/65:10 am
STL
- BIL
1 stop5h 26m
United Airlines
sáb. 7/116:00 pm
BIL
- STL
1 stop4h 47m
United Airlines
Deal found 6/13![United Airlines logo]()
$468
This United Airlines deal was found by Cheapflights users on 6/15. 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.
jue. 7/235:10 am
STL
- BIL
1 stop5h 26m
United Airlines
vie. 7/246:00 pm
BIL
- STL
1 stop4h 57m
United Airlines
Deal found 6/15![United Airlines logo]()
$515
This United Airlines deal was found by Cheapflights users on 6/11. 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.
sáb. 7/255:10 am
STL
- BIL
1 stop5h 25m
United Airlines
vie. 7/316:00 pm
BIL
- STL
1 stop4h 57m
United Airlines
Deal found 6/11![United Airlines logo]()
$459
One-way flights from St. Louis to BillingsSearch for one-way flight options from St. Louis to Billings. Find affordable one-way fares based on user searches. Data last updated junio 16, 2026.
Search for one-way flight options from St. Louis to Billings. Find affordable one-way fares based on user searches. Data last updated junio 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/15. 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.
sáb. 8/298:21 pm
STL
- BIL
3 stops48h 31m
Multiple Airlines
Deal found 6/15![Multiple Airlines logo]()
$253
This Delta deal was found by Cheapflights users on 6/15. 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.
sáb. 8/293:29 pm
STL
- BIL
1 stop5h 43m
Delta
Deal found 6/15![Delta logo]()
$258
This United Airlines deal was found by Cheapflights users on 6/15. 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.
sáb. 8/298:00 am
STL
- BIL
2 stops10h 16m
United Airlines
Deal found 6/15![United Airlines logo]()
$263
This Delta deal was found by Cheapflights users on 6/11. 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. 7/25:36 pm
STL
- BIL
1 stop6h 59m
Delta
Deal found 6/11![Delta logo]()
$288
This Booking.com deal was found by Cheapflights users on 6/15. 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.
sáb. 8/296:08 pm
STL
- BIL
2 stops30h 21m
Alaska Airlines
Deal found 6/15![Alaska Airlines logo]()
$298
This Delta deal was found by Cheapflights users on 6/13. 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.
vie. 6/265:36 pm
STL
- BIL
1 stop6h 56m
Delta
Deal found 6/13![Delta logo]()
$413
This United Airlines deal was found by Cheapflights users on 6/12. 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.
jue. 7/27:05 pm
STL
- BIL
2 stops15h 31m
United Airlines
Deal found 6/12![United Airlines logo]()
$528
This United Airlines deal was found by Cheapflights users on 6/13. 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. 6/267:20 am
STL
- BIL
2 stops9h 09m
United Airlines
Deal found 6/13![United Airlines logo]()
$688
Find flight deals from St. Louis to Billings
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Billings (BIL). 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 junio 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $258 (Kiwi.com) |
One-way from | $253 (Kiwi.com) |
Popular in | July |
Cheapest in | March |
Average price | $514 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Billings 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 junio 16, 2026.
Use the filters below to find and compare flights from St. Louis to Billings that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisBillings
STL - BIL
STLBIL
Lambert-St Louis
vie. 7/3
4:48 pm-9:17 pm
1 stop5h 29m
Billings Logan Intl
jue. 7/9
6:00 pm-11:57 pm
1 stop4h 57m
$371
Quickest round-trip
St. LouisBillings
STL - BIL
STLBIL
Lambert-St Louis
vie. 8/28
4:40 pm-9:00 pm
1 stop5h 20m
Billings Logan Intl
lun. 8/31
7:00 am-12:40 pm
1 stop4h 40m
$421
St. LouisBillings
STL - BIL
STLBIL
Lambert-St Louis
sáb. 7/25
5:10 am-9:35 am
1 stop5h 25m
Billings Logan Intl
vie. 7/31
6:00 pm-11:57 pm
1 stop4h 57m
$459
St. LouisBillings
STL - BIL
STLBIL
Lambert-St Louis
vie. 8/21
4:40 pm-10:51 pm
1 stop7h 11m
Billings Logan Intl
dom. 8/30
2:29 pm-8:46 pm
1 stop5h 17m
$469
St. LouisBillings
STL - BIL
STLBIL
Lambert-St Louis
jue. 7/2
5:36 pm-11:35 pm
1 stop6h 59m
Billings Logan Intl
mar. 7/7
6:34 pm-12:41 am
1 stop5h 07m
$479
St. LouisBillings
STL - BIL
STLBIL
Lambert-St Louis
mar. 11/10
4:30 pm-10:41 pm
1 stop7h 11m
Billings Logan Intl
jue. 11/12
7:00 am-12:43 pm
1 stop4h 43m
$561
St. LouisBillings
STL - BIL
STLBIL
Lambert-St Louis
dom. 8/9
5:10 am-9:36 am
1 stop5h 26m
Billings Logan Intl
mié. 8/12
7:00 am-11:38 pm
2 stops15h 38m
$588
Cheapest one-way
St. LouisBillings
STL - BIL
STLBIL
Lambert-St Louis
sáb. 8/29
8:21 pm-7:52 pm
3 stops48h 31m
$253
Quickest one-way
St. LouisBillings
STL - BIL
STLBIL
Lambert-St Louis
sáb. 8/29
3:29 pm-8:12 pm
1 stop5h 43m
$258
St. LouisBillings
STL - BIL
STLBIL
Lambert-St Louis
jue. 7/2
5:36 pm-11:35 pm
1 stop6h 59m
$288
Showing 1-10 of 12 resultsSorted by cheapest first
Compare providers for flights from St. Louis to Billings
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 Billings in June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on St. Louis-Billings flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Billings flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Billings flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-Billings 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-Billings 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 Billings
Have a flexible travel schedule? Discover the best time to fly to Billings from St. Louis with our price prediction graph.
STL-BIL
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 Billings
Reviews of airlines servicing Billings
Get insights into the airlines that provide service to Billings. 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 Billings. Reviews last updated junio 16, 2026.
Get a feel of what it's like to fly with Delta,United Airlines, andAmerican Airlines from St. Louis to Billings by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.8
Comfort
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.8
Comfort
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.8
Comfort
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.8
Comfort
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Billings. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
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Complete your trip
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Other flights to Billings
Explore flights to Billings departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on junio 16, 2026.
Complete your trip
Complete your trip to Billings by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from St. Louis to Billings, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Billings flights
Browse other St. Louis and Billings flight options. Last updated on junio 16, 2026.
Other flights from St. Louis
Browse through other flights departing from St. Louis. Flights are based on user searches made on Cheapflights and were last updated on junio 16, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from St. Louis to Billings
Discover the top 3 airlines that operate flights from St. Louis to Billings. 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 junio 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$322 | Average$425 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$332 | Average$439 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$386 | Average$431 | FlexibilityNo cancel fee | On-time71% |