$136+ Cheap flights from St. Louis (STL) to Montana
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 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BZN
Jun 11 — Jun 181
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 MontanaExplore the most affordable flight options available from St. Louis to Montana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 12, 2026.
Explore the most affordable flight options available from St. Louis to Montana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 12, 2026.
This Delta deal was found by Cheapflights users on 5/11. 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.
Wed 8/267:35 pm
STL
- BZN
1 stop5h 29m
Delta
Sun 8/306:00 am
BZN
- STL
1 stop6h 34m
Delta
Deal found 5/11![Delta logo]()
$271
This Delta deal was found by Cheapflights users on 5/8. 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 7/27:55 pm
STL
- BZN
1 stop5h 28m
Delta
Wed 7/85:15 am
BZN
- STL
1 stop7h 18m
Delta
Deal found 5/8![Delta logo]()
$281
This Delta deal was found by Cheapflights users on 5/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/265:36 pm
STL
- BZN
1 stop7h 08m
Delta
Wed 6/36:00 am
BZN
- STL
1 stop7h 31m
Delta
Deal found 5/12![Delta logo]()
$285
This United Airlines deal was found by Cheapflights users on 5/11. 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.
Tue 5/265:10 am
STL
- BZN
1 stop5h 27m
United Airlines
Tue 6/210:33 am
BZN
- STL
2 stops9h 57m
United Airlines
Deal found 5/11![United Airlines logo]()
$290
This American Airlines deal was found by Cheapflights users on 5/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/39:28 am
STL
- FCA
1 stop7h 35m
American Airlines
Mon 6/84:48 pm
FCA
- STL
1 stop6h 28m
American Airlines
Deal found 5/11![American Airlines logo]()
$297
This United Airlines deal was found by Cheapflights users on 5/9. 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.
Mon 6/295:10 am
STL
- BZN
1 stop5h 27m
United Airlines
Fri 7/34:29 pm
BZN
- STL
1 stop6h 28m
United Airlines
Deal found 5/9![United Airlines logo]()
$300
This United Airlines deal was found by Cheapflights users on 5/9. 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 6/275:33 pm
STL
- BZN
1 stop6h 10m
United Airlines
Wed 7/15:38 pm
BZN
- STL
1 stop5h 19m
United Airlines
Deal found 5/9![United Airlines logo]()
$301
This American Airlines deal was found by Cheapflights users on 5/8. 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.
Mon 5/257:03 am
STL
- FCA
1 stop8h 57m
American Airlines
Fri 5/291:25 pm
FCA
- STL
1 stop6h 05m
American Airlines
Deal found 5/8![American Airlines logo]()
$303
This Alaska Airlines deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/13:17 pm
STL
- BZN
1 stop8h 42m
Alaska Airlines
Tue 10/611:16 am
BZN
- STL
1 stop11h 43m
Alaska Airlines
Deal found 5/9![Alaska Airlines logo]()
$305
This Delta deal was found by Cheapflights users on 5/10. 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 8/192:10 pm
STL
- FCA
2 stops10h 41m
Delta
Tue 8/256:20 am
FCA
- STL
1 stop7h 50m
Delta
Deal found 5/10![Delta logo]()
$308
This American Airlines deal was found by Cheapflights users on 5/7. 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.
Fri 5/227:03 am
STL
- FCA
1 stop8h 57m
American Airlines
Tue 5/2612:25 pm
FCA
- STL
1 stop8h 17m
American Airlines
Deal found 5/7![American Airlines logo]()
$309
This United Airlines deal was found by Cheapflights users on 5/7. 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.
Sun 6/75:29 pm
STL
- BZN
1 stop6h 14m
United Airlines
Thu 6/118:00 am
BZN
- STL
1 stop6h 46m
United Airlines
Deal found 5/7![United Airlines logo]()
$311
Best flights from St. Louis to MontanaDiscover carefully curated flight deals from St. Louis to Montana that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 12, 2026.
Discover carefully curated flight deals from St. Louis to Montana that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 12, 2026.
This Delta deal was found by Cheapflights users on 5/11. 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.
Sat 7/48:00 am
STL
- BZN
1 stop8h 15m
Delta
Wed 7/85:15 am
BZN
- STL
1 stop7h 18m
Delta
Deal found 5/11![Delta logo]()
$271
This United Airlines deal was found by Cheapflights users on 5/7. 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.
Sun 6/75:29 pm
STL
- BZN
1 stop6h 14m
United Airlines
Thu 6/118:00 am
BZN
- STL
1 stop6h 46m
United Airlines
Deal found 5/7![United Airlines logo]()
$311
This Alaska Airlines deal was found by Cheapflights users on 5/7. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/73:24 pm
STL
- FCA
1 stop9h 35m
Alaska Airlines
Wed 11/112:10 pm
FCA
- STL
1 stop8h 49m
Alaska Airlines
Deal found 5/7![Alaska Airlines logo]()
$343
This Southwest deal was found by Cheapflights users on 5/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/44:20 pm
STL
- BZN
1 stop5h 10m
Southwest
Wed 7/81:30 pm
BZN
- STL
2 stops9h 25m
Southwest
Deal found 5/11![Southwest logo]()
$380
This Delta deal was found by Cheapflights users on 5/10. 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 8/107:35 pm
STL
- BZN
1 stop5h 29m
Delta
Sat 8/156:00 am
BZN
- STL
1 stop6h 34m
Delta
Deal found 5/10![Delta logo]()
$271
This United Airlines deal was found by Cheapflights users on 5/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/256:00 am
STL
- FCA
1 stop6h 29m
United Airlines
Fri 6/1212:35 pm
FCA
- STL
1 stop7h 55m
United Airlines
Deal found 5/8![United Airlines logo]()
$333
This Alaska Airlines deal was found by Cheapflights users on 5/8. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/205:59 pm
STL
- BZN
1 stop20h 25m
Alaska Airlines
Sun 8/233:32 pm
BZN
- STL
1 stop24h 31m
Alaska Airlines
Deal found 5/8![Alaska Airlines logo]()
$379
This Delta deal was found by Cheapflights users on 5/8. 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.
Fri 6/55:36 pm
STL
- BIL
1 stop6h 38m
Delta
Fri 6/126:40 pm
BIL
- STL
1 stop5h 03m
Delta
Deal found 5/8![Delta logo]()
$349
This United Airlines deal was found by Cheapflights users on 5/11. 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.
Thu 9/176:00 am
STL
- FCA
1 stop6h 26m
United Airlines
Tue 9/225:00 pm
FCA
- STL
1 stop5h 50m
United Airlines
Deal found 5/11![United Airlines logo]()
$354
This Southwest deal was found by Cheapflights users on 5/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/264:05 pm
STL
- BZN
1 stop7h 20m
Southwest
Sun 8/302:15 pm
BZN
- STL
2 stops7h 50m
Southwest
Deal found 5/11![Southwest logo]()
$391
This Delta deal was found by Cheapflights users on 5/8. 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.
Fri 7/35:36 pm
STL
- BIL
1 stop6h 24m
Delta
Tue 7/146:34 pm
BIL
- STL
1 stop5h 07m
Delta
Deal found 5/8![Delta logo]()
$349
This United Airlines deal was found by Cheapflights users on 5/11. 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.
Tue 8/188:42 am
STL
- BZN
1 stop7h 37m
United Airlines
Wed 8/194:30 pm
BZN
- STL
1 stop5h 29m
United Airlines
Deal found 5/11![United Airlines logo]()
$361
This Delta deal was found by Cheapflights users on 5/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/223:50 pm
STL
- BIL
1 stop4h 47m
Delta
Mon 9/286:25 pm
BIL
- STL
1 stop5h 11m
Delta
Deal found 5/12![Delta logo]()
$349
This Southwest deal was found by Cheapflights users on 5/9. 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 8/126:30 pm
STL
- BZN
1 stop4h 55m
Southwest
Sun 8/164:05 pm
BZN
- STL
1 stop7h 55m
Southwest
Deal found 5/9![Southwest logo]()
$429
This Alaska Airlines deal was found by Cheapflights users on 5/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/244:12 pm
STL
- FCA
1 stop8h 46m
Alaska Airlines
Thu 5/2811:33 am
FCA
- STL
1 stop6h 12m
Alaska Airlines
Deal found 5/11![Alaska Airlines logo]()
$449
This Delta deal was found by Cheapflights users on 5/10. 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 8/105:42 pm
STL
- MSO
1 stop7h 10m
Delta
Sat 8/157:13 am
MSO
- STL
1 stop5h 21m
Delta
Deal found 5/10![Delta logo]()
$349
This United Airlines deal was found by Cheapflights users on 5/11. 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.
Mon 6/85:10 am
STL
- BZN
1 stop5h 27m
United Airlines
Sun 6/146:30 am
BZN
- STL
1 stop5h 12m
United Airlines
Deal found 5/11![United Airlines logo]()
$395
This Delta deal was found by Cheapflights users on 5/11. 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.
Thu 9/246:59 pm
STL
- MSO
1 stop6h 25m
Delta
Sun 9/275:45 am
MSO
- STL
1 stop4h 45m
Delta
Deal found 5/11![Delta logo]()
$349
This Expedia deal was found by Cheapflights users on 5/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/267:41 pm
STL
- HLN
1 stop21h 25m
Alaska Airlines
Thu 5/284:43 pm
HLN
- STL
2 stops15h 08m
Alaska Airlines
Deal found 5/11![Alaska Airlines logo]()
$475
This United Airlines deal was found by Cheapflights users on 5/11. 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.
Tue 9/84:40 pm
STL
- BIL
1 stop5h 20m
United Airlines
Sat 9/125:57 pm
BIL
- STL
1 stop4h 53m
United Airlines
Deal found 5/11![United Airlines logo]()
$398
This Delta deal was found by Cheapflights users on 5/9. 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.
Sun 8/97:35 pm
STL
- MSO
1 stop5h 12m
Delta
Sat 8/157:13 am
MSO
- STL
1 stop5h 21m
Delta
Deal found 5/9![Delta logo]()
$349
This Alaska Airlines deal was found by Cheapflights users on 5/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/215:59 pm
STL
- FCA
1 stop20h 29m
Alaska Airlines
Fri 8/286:08 pm
FCA
- STL
1 stop18h 56m
Alaska Airlines
Deal found 5/11![Alaska Airlines logo]()
$476
This United Airlines deal was found by Cheapflights users on 5/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/256:00 am
STL
- FCA
1 stop6h 29m
United Airlines
Fri 5/291:20 pm
FCA
- STL
2 stops9h 37m
United Airlines
Deal found 5/8![United Airlines logo]()
$403
This Delta deal was found by Cheapflights users on 5/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/281:59 pm
STL
- BIL
2 stops9h 53m
Delta
Tue 6/26:19 pm
BIL
- STL
1 stop5h 11m
Delta
Deal found 5/7![Delta logo]()
$354
This United Airlines deal was found by Cheapflights users on 5/10. 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.
Sun 5/245:10 am
STL
- FCA
2 stops11h 20m
United Airlines
Thu 5/282:33 pm
FCA
- STL
1 stop8h 24m
United Airlines
Deal found 5/10![United Airlines logo]()
$404
This United Airlines deal was found by Cheapflights users on 5/7. 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 11/79:23 am
STL
- FCA
2 stops13h 07m
United Airlines
Wed 11/116:31 am
FCA
- STL
2 stops15h 54m
United Airlines
Deal found 5/7![United Airlines logo]()
$407
This Alaska Airlines deal was found by Cheapflights users on 5/10. 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 5/267:41 pm
STL
- GTF
1 stop23h 31m
Alaska Airlines
Sat 5/306:52 pm
GTF
- STL
1 stop19h 24m
Alaska Airlines
Deal found 5/10![Alaska Airlines logo]()
$544
This Delta deal was found by Cheapflights users on 5/11. 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.
Sun 8/28:48 am
STL
- MSO
2 stops9h 57m
Delta
Wed 8/126:27 pm
MSO
- STL
1 stop5h 14m
Delta
Deal found 5/11![Delta logo]()
$379
This Expedia deal was found by Cheapflights users on 5/8. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/57:41 pm
STL
- GTF
1 stop23h 31m
Alaska Airlines
Mon 6/86:52 pm
GTF
- STL
1 stop28h 02m
Alaska Airlines
Deal found 5/8![Alaska Airlines logo]()
$545
This Delta deal was found by Cheapflights users on 5/11. 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.
Fri 5/297:00 am
STL
- GTF
1 stop6h 27m
Delta
Wed 6/36:19 pm
GTF
- STL
1 stop5h 11m
Delta
Deal found 5/11![Delta logo]()
$388
Last-minute flights from St. Louis to MontanaDiscover last-minute flight deals from St. Louis to Montana. Data last updated May 12, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Montana. Data last updated May 12, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 5/7. 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.
Fri 5/227:03 am
STL
- FCA
1 stop8h 57m
American Airlines
Tue 5/2612:25 pm
FCA
- STL
1 stop8h 17m
American Airlines
Deal found 5/7![American Airlines logo]()
$309
This United Airlines deal was found by Cheapflights users on 5/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/236:00 am
STL
- FCA
1 stop6h 29m
United Airlines
Wed 5/2710:42 am
FCA
- STL
2 stops9h 39m
United Airlines
Deal found 5/8![United Airlines logo]()
$314
This Delta deal was found by Cheapflights users on 5/10. 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.
Sun 5/245:00 pm
STL
- BZN
1 stop6h 02m
Delta
Sat 5/305:35 am
BZN
- STL
1 stop6h 57m
Delta
Deal found 5/10![Delta logo]()
$329
This American Airlines deal was found by Cheapflights users on 5/8. 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.
Mon 5/257:03 am
STL
- FCA
1 stop8h 57m
American Airlines
Fri 5/291:25 pm
FCA
- STL
1 stop6h 05m
American Airlines
Deal found 5/8![American Airlines logo]()
$303
This Delta deal was found by Cheapflights users on 5/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/265:36 pm
STL
- BZN
1 stop7h 08m
Delta
Wed 6/36:00 am
BZN
- STL
1 stop7h 31m
Delta
Deal found 5/12![Delta logo]()
$285
This United Airlines deal was found by Cheapflights users on 5/11. 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.
Tue 5/265:10 am
STL
- BZN
1 stop5h 27m
United Airlines
Tue 6/210:33 am
BZN
- STL
2 stops9h 57m
United Airlines
Deal found 5/11![United Airlines logo]()
$290
This American Airlines deal was found by Cheapflights users on 5/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/39:28 am
STL
- FCA
1 stop7h 35m
American Airlines
Mon 6/84:48 pm
FCA
- STL
1 stop6h 28m
American Airlines
Deal found 5/11![American Airlines logo]()
$297
This United Airlines deal was found by Cheapflights users on 5/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/56:00 am
STL
- FCA
1 stop6h 29m
United Airlines
Fri 6/1212:35 pm
FCA
- STL
1 stop7h 55m
United Airlines
Deal found 5/8![United Airlines logo]()
$332
This United Airlines deal was found by Cheapflights users on 5/7. 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.
Sun 6/75:29 pm
STL
- BZN
1 stop6h 14m
United Airlines
Thu 6/114:29 pm
BZN
- STL
1 stop6h 28m
United Airlines
Deal found 5/7![United Airlines logo]()
$281
This United Airlines deal was found by Cheapflights users on 5/12. 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.
Mon 6/85:10 am
STL
- BZN
1 stop5h 27m
United Airlines
Thu 6/114:29 pm
BZN
- STL
1 stop6h 28m
United Airlines
Deal found 5/12![United Airlines logo]()
$315
This United Airlines deal was found by Cheapflights users on 5/9. 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 6/275:33 pm
STL
- BZN
1 stop6h 10m
United Airlines
Wed 7/15:38 pm
BZN
- STL
1 stop5h 19m
United Airlines
Deal found 5/9![United Airlines logo]()
$301
This United Airlines deal was found by Cheapflights users on 5/9. 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.
Mon 6/295:10 am
STL
- BZN
1 stop5h 27m
United Airlines
Fri 7/34:29 pm
BZN
- STL
1 stop6h 28m
United Airlines
Deal found 5/9![United Airlines logo]()
$300
One-way flights from St. Louis to MontanaSearch for one-way flight options from St. Louis to Montana. Find affordable one-way fares based on user searches. Data last updated May 12, 2026.
Search for one-way flight options from St. Louis to Montana. Find affordable one-way fares based on user searches. Data last updated May 12, 2026.
This Delta deal was found by Cheapflights users on 5/11. 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.
Wed 6/247:55 pm
STL
- BZN
1 stop5h 28m
Delta
Deal found 5/11![Delta logo]()
$136
This Delta deal was found by Cheapflights users on 5/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/65:36 pm
STL
- BZN
1 stop7h 08m
Delta
Deal found 5/7![Delta logo]()
$141
This Delta deal was found by Cheapflights users on 5/11. 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.
Sat 7/43:57 pm
STL
- FCA
1 stop5h 19m
Delta
Deal found 5/11![Delta logo]()
$149
This Delta deal was found by Cheapflights users on 5/11. 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.
Sat 6/135:00 pm
STL
- BZN
1 stop6h 08m
Delta
Deal found 5/11![Delta logo]()
$150
This American Airlines deal was found by Cheapflights users on 5/8. 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 5/227:03 am
STL
- FCA
1 stop8h 57m
American Airlines
Deal found 5/8![American Airlines logo]()
$155
This Delta deal was found by Cheapflights users on 5/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1112:52 pm
STL
- FCA
2 stops11h 59m
Delta
Deal found 5/7![Delta logo]()
$159
This United Airlines deal was found by Cheapflights users on 5/7. 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.
Sun 6/145:10 am
STL
- BZN
1 stop5h 19m
United Airlines
Deal found 5/7![United Airlines logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 5/8. 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 7/293:34 pm
STL
- MSO
2 stops19h 00m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$173
This American Airlines deal was found by Cheapflights users on 5/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/56:35 am
STL
- MSO
1 stop10h 39m
American Airlines
Deal found 5/12![American Airlines logo]()
$175
This American Airlines deal was found by Cheapflights users on 5/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/145:29 am
STL
- BZN
1 stop6h 28m
American Airlines
Deal found 5/12![American Airlines logo]()
$180
This United Airlines deal was found by Cheapflights users on 5/11. 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.
Tue 5/266:00 am
STL
- BZN
1 stop6h 44m
United Airlines
Deal found 5/11![United Airlines logo]()
$195
This Kiwi.com deal was found by Cheapflights users on 5/10. 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.
Thu 7/163:34 pm
STL
- GTF
2 stops19h 00m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$209
Find flight deals from St. Louis to Montana
Keep the following information in mind while searching for St. Louis to Montana flight deals. Data was last updated May 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $271 (Delta) |
One-way from | $136 (Delta) |
Popular in | March |
Cheapest in | January |
Average price | $396 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Montana 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 May 12, 2026.
Use the filters below to find and compare flights from St. Louis to Montana that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisBozeman
STL - BZN
STLBZN
Lambert-St Louis
Sat 7/4
8:00 am-3:15 pm
1 stop8h 15m
Bozeman Gallatin Field
Wed 7/8
5:15 am-1:33 pm
1 stop7h 18m
$271
St. LouisBozeman
STL - BZN
STLBZN
Lambert-St Louis
Mon 8/10
7:35 pm-12:04 am
1 stop5h 29m
Bozeman Gallatin Field
Sat 8/15
6:00 am-1:34 pm
1 stop6h 34m
$271
St. LouisBozeman
STL - BZN
STLBZN
Lambert-St Louis
Sun 6/7
5:29 pm-10:43 pm
1 stop6h 14m
Bozeman Gallatin Field
Thu 6/11
8:00 am-3:46 pm
1 stop6h 46m
$311
St. LouisKalispell
STL - FCA
STLFCA
Lambert-St Louis
Mon 5/25
6:00 am-11:29 am
1 stop6h 29m
Kalispell Glacier Park
Fri 6/12
12:35 pm-9:30 pm
1 stop7h 55m
$333
St. LouisKalispell
STL - FCA
STLFCA
Lambert-St Louis
Sat 11/7
3:24 pm-11:59 pm
1 stop9h 35m
Kalispell Glacier Park
Wed 11/11
2:10 pm-11:59 pm
1 stop8h 49m
$343
St. LouisBillings
STL - BIL
STLBIL
Lambert-St Louis
Fri 6/5
5:36 pm-11:14 pm
1 stop6h 38m
Billings Logan Intl
Fri 6/12
6:40 pm-12:43 am
1 stop5h 03m
$349
St. LouisBillings
STL - BIL
STLBIL
Lambert-St Louis
Fri 7/3
5:36 pm-11:00 pm
1 stop6h 24m
Billings Logan Intl
Tue 7/14
6:34 pm-12:41 am
1 stop5h 07m
$349
Quickest round-trip
St. LouisBillings
STL - BIL
STLBIL
Lambert-St Louis
Tue 9/22
3:50 pm-7:37 pm
1 stop4h 47m
Billings Logan Intl
Mon 9/28
6:25 pm-12:36 am
1 stop5h 11m
$349
St. LouisMissoula
STL - MSO
STLMSO
Lambert-St Louis
Mon 8/10
5:42 pm-11:52 pm
1 stop7h 10m
Missoula Johnson-Bell Field
Sat 8/15
7:13 am-1:34 pm
1 stop5h 21m
$349
St. LouisMissoula
STL - MSO
STLMSO
Lambert-St Louis
Thu 9/24
6:59 pm-12:24 am
1 stop6h 25m
Missoula Johnson-Bell Field
Sun 9/27
5:45 am-11:30 am
1 stop4h 45m
$349
Showing 1-10 of 59 resultsSorted by cheapest first
Best time to book a flight from St. Louis to Montana
Have a flexible travel schedule? Discover the best time to fly to Montana from St. Louis with our price prediction graph.
STL-BZN
STL-FCA
STL-BIL
STL-MSO
STL-HLN
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 Montana
STL-USMT
STL-BZN
STL-FCA
STL-BIL
STL-MSO
How far ahead should I book a flight from St. Louis to Montana?
The price you pay for your flight from St. Louis to Montana may vary depending on when you book. For the best chance of a lower fare, look to book 67 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from St. Louis to Montana?
Currently, June is the cheapest month in which you can book a flight from St. Louis to Montana (average of $142). Flying from St. Louis to Montana in December is currently the most expensive (average of $256). 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 Montana?
Reviews of airlines servicing Montana
Get insights into the airlines that provide service to Montana. 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 Montana. Reviews last updated May 12, 2026.
Peruse reviews from past customers who have flown with Southwest,Alaska Airlines, andDelta from St. Louis to Montana to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Montana. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for St. Louis to Montana
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Complete your trip
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St. Louis and Montana flights
Browse other St. Louis and Montana flight options. Last updated on May 12, 2026.
Popular flight searches
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St. Louis to Montana flights
Consider these flights traveling from St. Louis to Montana.
Top 5 airlines flying from St. Louis to Montana
Discover the top 5 airlines that operate flights from St. Louis to Montana. 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 May 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$179 | Average$389 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$187 | Average$407 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$214 | Average$420 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$238 | Average$395 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$242 | Average$442 | FlexibilityNo cancel fee | On-time69% |