$243+ 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 12/2. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BIL
Aug 22 — Aug 291
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from St. Louis to Billings with Cheapflights
1. Tell us where you want to go
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to Billings
Cheapest
Best
Last-minute
One-way
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 July 23, 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 July 23, 2026.
This United Airlines deal was found by Cheapflights users on 7/23. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/269:00 am
STL
- BIL
1 stop5h 21m
United Airlines
Sun 8/304:40 pm
BIL
- STL
1 stop5h 51m
United Airlines
Deal found 7/23![United Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 7/21. 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 11/102:18 pm
STL
- BIL
2 stops9h 14m
Delta
Sat 11/145:45 am
BIL
- STL
2 stops9h 13m
Delta
Deal found 7/21![Delta logo]()
$339
This American Airlines deal was found by Cheapflights users on 7/21. 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.
Thu 8/206:00 am
STL
- BIL
1 stop5h 50m
American Airlines
Thu 8/271:13 pm
BIL
- STL
1 stop8h 28m
American Airlines
Deal found 7/21![American Airlines logo]()
$344
This American Airlines deal was found by Cheapflights users on 7/19. 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.
Thu 8/206:00 am
STL
- BIL
1 stop5h 50m
American Airlines
Tue 8/251:13 pm
BIL
- STL
1 stop6h 13m
American Airlines
Deal found 7/19![American Airlines logo]()
$369
This Delta deal was found by Cheapflights users on 7/19. 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 8/185:34 pm
STL
- BIL
1 stop6h 56m
Delta
Mon 8/246:24 pm
BIL
- STL
1 stop5h 17m
Delta
Deal found 7/19![Delta logo]()
$379
This Delta deal was found by Cheapflights users on 7/21. 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.
Fri 12/119:45 am
STL
- BIL
2 stops9h 04m
Delta
Thu 12/176:25 pm
BIL
- STL
1 stop5h 11m
Delta
Deal found 7/21![Delta logo]()
$394
This United Airlines deal was found by Cheapflights users on 7/19. 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.
Tue 8/1812:59 pm
STL
- BIL
2 stops9h 01m
United Airlines
Mon 8/242:29 pm
BIL
- STL
1 stop5h 17m
United Airlines
Deal found 7/19![United Airlines logo]()
$401
This Delta deal was found by Cheapflights users on 7/19. 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 8/209:15 am
STL
- BIL
2 stops14h 10m
Delta
Tue 8/256:24 pm
BIL
- STL
1 stop5h 17m
Delta
Deal found 7/19![Delta logo]()
$408
This United Airlines deal was found by Cheapflights users on 7/20. 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 11/148:58 am
STL
- BIL
1 stop5h 20m
United Airlines
Wed 11/185:00 am
BIL
- STL
1 stop6h 37m
United Airlines
Deal found 7/20![United Airlines logo]()
$409
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 July 23, 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 July 23, 2026.
This United Airlines deal was found by Cheapflights users on 7/21. 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.
Tue 11/104:40 pm
STL
- BIL
1 stop6h 36m
United Airlines
Sat 11/142:29 pm
BIL
- STL
1 stop5h 05m
United Airlines
Deal found 7/21![United Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 7/21. 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 11/102:18 pm
STL
- BIL
2 stops9h 14m
Delta
Sat 11/145:45 am
BIL
- STL
2 stops9h 13m
Delta
Deal found 7/21![Delta logo]()
$339
This United Airlines deal was found by Cheapflights users on 7/19. 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.
Tue 8/1812:59 pm
STL
- BIL
2 stops9h 01m
United Airlines
Mon 8/242:29 pm
BIL
- STL
1 stop5h 17m
United Airlines
Deal found 7/19![United Airlines logo]()
$401
This Delta deal was found by Cheapflights users on 7/19. 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 8/209:15 am
STL
- BIL
2 stops14h 10m
Delta
Tue 8/2511:51 am
BIL
- STL
2 stops10h 30m
Delta
Deal found 7/19![Delta logo]()
$413
This United Airlines deal was found by Cheapflights users on 7/20. 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 11/148:58 am
STL
- BIL
1 stop5h 20m
United Airlines
Wed 11/185:00 am
BIL
- STL
1 stop6h 37m
United Airlines
Deal found 7/20![United Airlines logo]()
$409
Last-minute flights from St. Louis to BillingsDiscover last-minute flight deals from St. Louis to Billings. Data last updated July 23, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Billings. Data last updated July 23, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 7/18. 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.
Sat 7/253:57 pm
STL
- BIL
1 stop5h 02m
Delta
Wed 8/56:24 pm
BIL
- STL
1 stop5h 17m
Delta
Deal found 7/18![Delta logo]()
$414
This United Airlines deal was found by Cheapflights users on 7/19. 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 8/19:20 am
STL
- BIL
2 stops8h 59m
United Airlines
Mon 8/317:00 am
BIL
- STL
1 stop4h 40m
United Airlines
Deal found 7/19![United Airlines logo]()
$425
This Delta deal was found by Cheapflights users on 7/19. 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 8/185:34 pm
STL
- BIL
1 stop6h 56m
Delta
Mon 8/246:24 pm
BIL
- STL
1 stop5h 17m
Delta
Deal found 7/19![Delta logo]()
$379
This United Airlines deal was found by Cheapflights users on 7/19. 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.
Tue 8/1812:59 pm
STL
- BIL
2 stops9h 01m
United Airlines
Mon 8/242:29 pm
BIL
- STL
1 stop5h 17m
United Airlines
Deal found 7/19![United Airlines logo]()
$401
This American Airlines deal was found by Cheapflights users on 7/21. 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.
Thu 8/206:00 am
STL
- BIL
1 stop5h 50m
American Airlines
Thu 8/271:13 pm
BIL
- STL
1 stop8h 28m
American Airlines
Deal found 7/21![American Airlines logo]()
$344
This American Airlines deal was found by Cheapflights users on 7/19. 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.
Thu 8/206:00 am
STL
- BIL
1 stop5h 50m
American Airlines
Tue 8/251:13 pm
BIL
- STL
1 stop6h 13m
American Airlines
Deal found 7/19![American Airlines logo]()
$369
This Delta deal was found by Cheapflights users on 7/19. 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 8/209:15 am
STL
- BIL
2 stops14h 10m
Delta
Tue 8/256:24 pm
BIL
- STL
1 stop5h 17m
Delta
Deal found 7/19![Delta logo]()
$408
This United Airlines deal was found by Cheapflights users on 7/19. 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.
Thu 8/204:40 pm
STL
- BIL
1 stop5h 20m
United Airlines
Tue 8/255:07 am
BIL
- STL
2 stops9h 31m
United Airlines
Deal found 7/19![United Airlines logo]()
$427
This United Airlines deal was found by Cheapflights users on 7/23. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/269:00 am
STL
- BIL
1 stop5h 21m
United Airlines
Sun 8/304:40 pm
BIL
- STL
1 stop5h 51m
United Airlines
Deal found 7/23![United Airlines logo]()
$329
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 July 23, 2026.
Search for one-way flight options from St. Louis to Billings. Find affordable one-way fares based on user searches. Data last updated July 23, 2026.
This Delta deal was found by Cheapflights users on 7/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/23:45 pm
STL
- BIL
1 stop5h 03m
Delta
Deal found 7/22![Delta logo]()
$243
This Alaska Airlines deal was found by Cheapflights users on 7/22. 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.
Tue 8/182:50 pm
STL
- BIL
1 stop10h 01m
Alaska Airlines
Deal found 7/22![Alaska Airlines logo]()
$287
This United Airlines deal was found by Cheapflights users on 7/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/189:00 am
STL
- BIL
1 stop5h 21m
United Airlines
Deal found 7/22![United Airlines logo]()
$293
This Kiwi.com deal was found by Cheapflights users on 7/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/74:57 pm
STL
- BIL
3 stops49h 06m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$309
This Delta deal was found by Cheapflights users on 7/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/110:45 am
STL
- BIL
2 stops10h 03m
Delta
Deal found 7/22![Delta logo]()
$330
This Kiwi.com deal was found by Cheapflights users on 7/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/294:08 pm
STL
- BIL
1 stop18h 59m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$331
This Kiwi.com deal was found by Cheapflights users on 7/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/284:08 pm
STL
- BIL
1 stop30h 13m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$340
This Delta deal was found by Cheapflights users on 7/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/303:45 pm
STL
- BIL
1 stop5h 03m
Delta
Deal found 7/22![Delta logo]()
$343
This American Airlines deal was found by Cheapflights users on 7/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/73:32 pm
STL
- BIL
1 stop8h 15m
American Airlines
Deal found 7/22![American Airlines logo]()
$363
This United Airlines deal was found by Cheapflights users on 7/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/71:13 pm
STL
- BIL
2 stops9h 04m
United Airlines
Deal found 7/22![United Airlines logo]()
$368
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 July 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $329 (United Airlines) |
One-way from | $243 (Delta) |
Popular in | July |
Cheapest in | March |
Average price | $788 |
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 July 23, 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
Quickest round-trip
St. LouisBillings
STL - BIL
STLBIL
Lambert-St Louis
Tue 11/10
4:40 pm-10:16 pm
1 stop6h 36m
Billings Logan Intl
Sat 11/14
2:29 pm-8:34 pm
1 stop5h 05m
$329
St. LouisBillings
STL - BIL
STLBIL
Lambert-St Louis
Tue 11/10
2:18 pm-10:32 pm
2 stops9h 14m
Billings Logan Intl
Sat 11/14
5:45 am-3:58 pm
2 stops9h 13m
$339
St. LouisBillings
STL - BIL
STLBIL
Lambert-St Louis
Tue 8/18
12:59 pm-9:00 pm
2 stops9h 01m
Billings Logan Intl
Mon 8/24
2:29 pm-8:46 pm
1 stop5h 17m
$401
St. LouisBillings
STL - BIL
STLBIL
Lambert-St Louis
Sat 11/14
8:58 am-1:18 pm
1 stop5h 20m
Billings Logan Intl
Wed 11/18
5:00 am-12:37 pm
1 stop6h 37m
$409
St. LouisBillings
STL - BIL
STLBIL
Lambert-St Louis
Thu 8/20
9:15 am-10:25 pm
2 stops14h 10m
Billings Logan Intl
Tue 8/25
11:51 am-11:21 pm
2 stops10h 30m
$413
Cheapest one-way
Quickest one-way
St. LouisBillings
STL - BIL
STLBIL
Lambert-St Louis
Wed 12/2
3:45 pm-7:48 pm
1 stop5h 03m
$243
St. LouisBillings
STL - BIL
STLBIL
Lambert-St Louis
Tue 8/18
9:00 am-1:21 pm
1 stop5h 21m
$293
St. LouisBillings
STL - BIL
STLBIL
Lambert-St Louis
Sun 11/29
4:08 pm-10:07 am
1 stop18h 59m
$331
St. LouisBillings
STL - BIL
STLBIL
Lambert-St Louis
Sat 11/28
4:08 pm-9:21 pm
1 stop30h 13m
$340
St. LouisBillings
STL - BIL
STLBIL
Lambert-St Louis
Fri 8/7
3:32 pm-10:47 pm
1 stop8h 15m
$363
Showing 1-10 of 16 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 July.
| 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 July 23, 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.
Comfort
7.8
Food
7.2
Entertainment
7.8
Boarding
8.1
Overall
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Food
7.2
Entertainment
7.8
Boarding
8.1
Overall
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Food
7.2
Entertainment
7.8
Boarding
8.1
Overall
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Food
7.2
Entertainment
7.8
Boarding
8.1
Overall
7.8
Crew
8.5
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
Billings flight routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from St. Louis
Popular flights
Alternative routes for St. Louis to Billings
See prices for flight routes from nearby airports that may be better suited for you.
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 July 23, 2026.
Complete your trip
Complete your trip to Billings by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from St. Louis to Billings by cabin class
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 July 23, 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 July 23, 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 July 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$280 | Average$425 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$332 | Average$478 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$386 | Average$431 | FlexibilityNo cancel fee | On-time71% |