$111+ 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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BZN
Jul 27 — Aug 31
Round-trip
1 adult, Economy
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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 June 27, 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 June 27, 2026.
This Delta deal was found by Cheapflights users on 6/26. 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 8/208:00 am
STL
- WYS
1 stop5h 27m
Delta
Fri 8/281:09 pm
WYS
- STL
1 stop4h 46m
Delta
Deal found 6/26![Delta logo]()
$304
This Delta deal was found by Cheapflights users on 6/22. 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.
Fri 8/215:34 pm
STL
- FCA
1 stop7h 22m
Delta
Fri 8/286:09 pm
FCA
- STL
1 stop5h 32m
Delta
Deal found 6/22![Delta logo]()
$309
This Delta deal was found by Cheapflights users on 6/26. 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 10/229:00 am
STL
- BIL
2 stops11h 48m
Delta
Wed 10/286:25 pm
BIL
- STL
1 stop5h 11m
Delta
Deal found 6/26![Delta logo]()
$324
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 8/232:00 pm
STL
- BZN
2 stops27h 00m
Multiple Airlines
Sun 8/309:06 pm
BZN
- STL
1 stop19h 44m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$328
This Delta deal was found by Cheapflights users on 6/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/155:00 pm
STL
- HLN
1 stop6h 30m
Delta
Thu 8/2012:55 pm
HLN
- STL
1 stop5h 00m
Delta
Deal found 6/23![Delta logo]()
$329
This United Airlines deal was found by Cheapflights users on 6/26. 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 8/2211:25 am
STL
- BTM
2 stops12h 01m
United Airlines
Tue 8/258:37 am
BTM
- STL
1 stop6h 57m
United Airlines
Deal found 6/26![United Airlines logo]()
$334
This Kiwi.com deal was found by Cheapflights users on 6/25. 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 7/297:03 pm
STL
- BZN
1 stop21h 55m
Multiple Airlines
Thu 8/64:51 pm
BZN
- STL
2 stops39h 06m
Multiple Airlines
Deal found 6/25![Multiple Airlines logo]()
$339
This United Airlines deal was found by Cheapflights users on 6/23. 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 10/211:29 pm
STL
- BZN
1 stop6h 43m
United Airlines
Sat 10/248:00 am
BZN
- STL
1 stop5h 16m
United Airlines
Deal found 6/23![United Airlines logo]()
$342
This Southwest deal was found by Cheapflights users on 6/26. 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.
Tue 8/2512:45 pm
STL
- BZN
2 stops8h 15m
Southwest
Mon 8/315:05 pm
BZN
- STL
1 stop6h 30m
Southwest
Deal found 6/26![Southwest logo]()
$344
This American Airlines deal was found by Cheapflights users on 6/24. 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.
Sat 8/295:42 am
STL
- BZN
1 stop6h 23m
American Airlines
Sat 9/56:26 am
BZN
- STL
1 stop8h 48m
American Airlines
Deal found 6/24![American Airlines logo]()
$347
This Delta deal was found by Cheapflights users on 6/25. 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 8/282:10 pm
STL
- FCA
2 stops10h 46m
Delta
Thu 9/36:20 am
FCA
- STL
1 stop7h 50m
Delta
Deal found 6/25![Delta logo]()
$349
This Southwest deal was found by Cheapflights users on 6/26. 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 8/263:45 pm
STL
- BZN
2 stops7h 40m
Southwest
Tue 9/12:00 pm
BZN
- STL
2 stops7h 10m
Southwest
Deal found 6/26![Southwest logo]()
$349
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 June 27, 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 June 27, 2026.
This Delta deal was found by Cheapflights users on 6/26. 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 10/229:00 am
STL
- BIL
2 stops11h 48m
Delta
Wed 10/286:25 pm
BIL
- STL
1 stop5h 11m
Delta
Deal found 6/26![Delta logo]()
$324
This United Airlines deal was found by Cheapflights users on 6/26. 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 8/2211:25 am
STL
- BTM
2 stops12h 01m
United Airlines
Tue 8/258:37 am
BTM
- STL
1 stop6h 57m
United Airlines
Deal found 6/26![United Airlines logo]()
$334
This Southwest deal was found by Cheapflights users on 6/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/234:05 pm
STL
- BZN
1 stop4h 55m
Southwest
Mon 9/285:05 pm
BZN
- STL
1 stop6h 30m
Southwest
Deal found 6/23![Southwest logo]()
$360
This Alaska Airlines deal was found by Cheapflights users on 6/22. 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 10/277:00 am
STL
- MSO
1 stop8h 50m
Alaska Airlines
Wed 10/282:06 pm
MSO
- STL
1 stop8h 53m
Alaska Airlines
Deal found 6/22![Alaska Airlines logo]()
$431
This Kiwi.com deal was found by Cheapflights users on 6/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/237:10 pm
STL
- BIL
1 stop15h 04m
Multiple Airlines
Mon 7/279:59 am
BIL
- STL
2 stops32h 24m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$471
This Delta deal was found by Cheapflights users on 6/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/155:00 pm
STL
- HLN
1 stop6h 30m
Delta
Thu 8/2012:55 pm
HLN
- STL
1 stop5h 00m
Delta
Deal found 6/23![Delta logo]()
$329
This United Airlines deal was found by Cheapflights users on 6/26. 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
- HLN
1 stop5h 45m
United Airlines
Sun 8/302:35 pm
HLN
- STL
1 stop5h 11m
United Airlines
Deal found 6/26![United Airlines logo]()
$358
This Delta deal was found by Cheapflights users on 6/25. 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 8/215:34 pm
STL
- FCA
1 stop7h 22m
Delta
Fri 8/286:09 pm
FCA
- STL
1 stop5h 32m
Delta
Deal found 6/25![Delta logo]()
$344
This United Airlines deal was found by Cheapflights users on 6/26. 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 7/205:10 am
STL
- BZN
1 stop5h 27m
United Airlines
Tue 7/284:29 pm
BZN
- STL
1 stop6h 28m
United Airlines
Deal found 6/26![United Airlines logo]()
$369
This Delta deal was found by Cheapflights users on 6/25. 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 8/105:34 pm
STL
- BZN
1 stop6h 42m
Delta
Sat 8/156:19 am
BZN
- STL
1 stop7h 28m
Delta
Deal found 6/25![Delta logo]()
$360
This United Airlines deal was found by Cheapflights users on 6/26. 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 10/225:10 am
STL
- BIL
1 stop5h 36m
United Airlines
Wed 10/285:00 am
BIL
- STL
1 stop6h 37m
United Airlines
Deal found 6/26![United Airlines logo]()
$379
This Travelocity deal was found by Cheapflights users on 6/25. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/132:27 pm
STL
- GTF
2 stops27h 12m
Alaska Airlines
Tue 9/225:19 pm
GTF
- STL
1 stop20h 02m
Alaska Airlines
Deal found 6/25![Alaska Airlines logo]()
$480
This Southwest deal was found by Cheapflights users on 6/25. 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 7/81:45 pm
STL
- BZN
1 stop5h 35m
Southwest
Thu 7/97:35 am
BZN
- STL
1 stop5h 35m
Southwest
Deal found 6/25![Southwest logo]()
$509
This Delta deal was found by Cheapflights users on 6/26. 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 12/67:30 am
STL
- BZN
1 stop5h 53m
Delta
Sun 12/135:45 am
BZN
- STL
1 stop6h 38m
Delta
Deal found 6/26![Delta logo]()
$391
This United Airlines deal was found by Cheapflights users on 6/26. 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 7/204:48 pm
STL
- BZN
1 stop5h 26m
United Airlines
Mon 7/275:51 pm
BZN
- STL
1 stop5h 06m
United Airlines
Deal found 6/26![United Airlines logo]()
$391
This Alaska Airlines deal was found by Cheapflights users on 6/22. 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.
Fri 9/252:32 pm
STL
- BZN
2 stops20h 22m
Alaska Airlines
Mon 9/287:03 am
BZN
- STL
2 stops15h 37m
Alaska Airlines
Deal found 6/22![Alaska Airlines logo]()
$492
This Delta deal was found by Cheapflights users on 6/24. 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 9/195:00 pm
STL
- FCA
1 stop6h 54m
Delta
Sat 9/265:30 am
FCA
- STL
1 stop7h 00m
Delta
Deal found 6/24![Delta logo]()
$393
This United Airlines deal was found by Cheapflights users on 6/24. 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 8/294:40 pm
STL
- COD
1 stop7h 05m
United Airlines
Wed 9/210:10 am
COD
- STL
1 stop5h 24m
United Airlines
Deal found 6/24![United Airlines logo]()
$398
This United Airlines deal was found by Cheapflights users on 6/26. 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 10/2410:27 am
STL
- FCA
2 stops12h 09m
United Airlines
Wed 10/282:29 pm
FCA
- STL
1 stop5h 05m
United Airlines
Deal found 6/26![United Airlines logo]()
$404
This Delta deal was found by Cheapflights users on 6/26. 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 7/1110:16 am
STL
- GTF
2 stops13h 21m
Delta
Wed 7/156:25 pm
GTF
- STL
1 stop5h 16m
Delta
Deal found 6/26![Delta logo]()
$424
This United Airlines deal was found by Cheapflights users on 6/26. 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 10/318:58 am
STL
- GTF
1 stop5h 39m
United Airlines
Wed 11/42:39 pm
GTF
- STL
1 stop4h 55m
United Airlines
Deal found 6/26![United Airlines logo]()
$408
This Alaska Airlines deal was found by Cheapflights users on 6/25. 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 8/276:00 am
STL
- MSO
2 stops17h 59m
Alaska Airlines
Sun 8/307:15 am
MSO
- STL
2 stops12h 21m
Alaska Airlines
Deal found 6/25![Alaska Airlines logo]()
$624
This Delta deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/78:48 am
STL
- BTM
2 stops9h 07m
Delta
Tue 7/146:10 pm
BTM
- STL
1 stop5h 31m
Delta
Deal found 6/24![Delta logo]()
$439
This United Airlines deal was found by Cheapflights users on 6/23. 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.
Tue 10/274:40 pm
STL
- GTF
1 stop6h 07m
United Airlines
Sat 10/316:30 am
GTF
- STL
1 stop5h 07m
United Airlines
Deal found 6/23![United Airlines logo]()
$408
This Alaska Airlines deal was found by Cheapflights users on 6/25. 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 7/117:56 pm
STL
- MSO
1 stop15h 46m
Alaska Airlines
Sat 7/185:41 pm
MSO
- STL
2 stops13h 56m
Alaska Airlines
Deal found 6/25![Alaska Airlines logo]()
$666
This United Airlines deal was found by Cheapflights users on 6/26. 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 7/75:10 am
STL
- BIL
1 stop5h 26m
United Airlines
Tue 7/146:00 pm
BIL
- STL
1 stop4h 57m
United Airlines
Deal found 6/26![United Airlines logo]()
$414
This Delta deal was found by Cheapflights users on 6/22. 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 8/47:45 pm
STL
- MSO
1 stop5h 33m
Delta
Wed 8/125:30 am
MSO
- STL
1 stop7h 08m
Delta
Deal found 6/22![Delta logo]()
$472
This United Airlines deal was found by Cheapflights users on 6/23. 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.
Sat 8/294:40 pm
STL
- BTM
1 stop6h 46m
United Airlines
Wed 9/28:37 am
BTM
- STL
1 stop6h 57m
United Airlines
Deal found 6/23![United Airlines logo]()
$414
This Delta deal was found by Cheapflights users on 6/24. 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 8/125:34 pm
STL
- FCA
1 stop7h 22m
Delta
Sat 8/156:20 am
FCA
- STL
1 stop7h 27m
Delta
Deal found 6/24![Delta logo]()
$489
This United Airlines deal was found by Cheapflights users on 6/22. 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 10/278:58 am
STL
- HLN
1 stop5h 51m
United Airlines
Sat 10/316:15 am
HLN
- STL
1 stop5h 22m
United Airlines
Deal found 6/22![United Airlines logo]()
$419
Last-minute flights from St. Louis to MontanaDiscover last-minute flight deals from St. Louis to Montana. Data last updated June 27, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Montana. Data last updated June 27, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 6/22. 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 7/34:48 pm
STL
- BIL
1 stop6h 21m
United Airlines
Wed 7/86:00 pm
BIL
- STL
1 stop4h 57m
United Airlines
Deal found 6/22![United Airlines logo]()
$414
This American Airlines deal was found by Cheapflights users on 6/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/78:38 am
STL
- BZN
1 stop7h 44m
American Airlines
Tue 7/145:03 pm
BZN
- STL
1 stop6h 13m
American Airlines
Deal found 6/23![American Airlines logo]()
$428
This Delta deal was found by Cheapflights users on 6/26. 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 7/1110:16 am
STL
- GTF
2 stops13h 21m
Delta
Wed 7/156:25 pm
GTF
- STL
1 stop5h 16m
Delta
Deal found 6/26![Delta logo]()
$424
This United Airlines deal was found by Cheapflights users on 6/26. 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 7/185:59 pm
STL
- BZN
1 stop5h 44m
United Airlines
Wed 7/224:29 pm
BZN
- STL
1 stop6h 28m
United Airlines
Deal found 6/26![United Airlines logo]()
$369
This United Airlines deal was found by Cheapflights users on 6/26. 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 7/204:48 pm
STL
- BZN
1 stop5h 26m
United Airlines
Mon 7/275:51 pm
BZN
- STL
1 stop5h 06m
United Airlines
Deal found 6/26![United Airlines logo]()
$391
This United Airlines deal was found by Cheapflights users on 6/26. 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 7/219:06 am
STL
- BZN
1 stop7h 27m
United Airlines
Tue 7/284:29 pm
BZN
- STL
1 stop6h 28m
United Airlines
Deal found 6/26![United Airlines logo]()
$347
This Southwest deal was found by Cheapflights users on 6/26. 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.
Tue 7/214:25 pm
STL
- BZN
1 stop9h 25m
Southwest
Tue 7/281:30 pm
BZN
- STL
2 stops9h 25m
Southwest
Deal found 6/26![Southwest logo]()
$429
This Kiwi.com deal was found by Cheapflights users on 6/25. 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 7/297:03 pm
STL
- BZN
1 stop21h 55m
Multiple Airlines
Thu 8/64:51 pm
BZN
- STL
2 stops39h 06m
Multiple Airlines
Deal found 6/25![Multiple Airlines logo]()
$339
This Kiwi.com deal was found by Cheapflights users on 6/25. 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 7/297:03 pm
STL
- BZN
1 stop21h 55m
Multiple Airlines
Fri 8/73:46 pm
BZN
- STL
2 stops26h 37m
Multiple Airlines
Deal found 6/25![Multiple Airlines logo]()
$366
This Kiwi.com deal was found by Cheapflights users on 6/25. 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 7/302:00 pm
STL
- BZN
2 stops27h 19m
Multiple Airlines
Thu 8/64:51 pm
BZN
- STL
1 stop24h 24m
Multiple Airlines
Deal found 6/25![Multiple Airlines logo]()
$389
This United Airlines deal was found by Cheapflights users on 6/24. 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 7/305:10 am
STL
- BZN
1 stop5h 27m
United Airlines
Sun 8/25:51 pm
BZN
- STL
1 stop5h 06m
United Airlines
Deal found 6/24![United Airlines logo]()
$426
This Southwest deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/313:20 pm
STL
- BZN
2 stops10h 55m
Southwest
Thu 8/65:05 pm
BZN
- STL
1 stop6h 30m
Southwest
Deal found 6/25![Southwest logo]()
$395
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 June 27, 2026.
Search for one-way flight options from St. Louis to Montana. Find affordable one-way fares based on user searches. Data last updated June 27, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/22. 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.
Thu 8/276:45 pm
STL
- BIL
1 stop21h 25m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$111
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 7/257:10 pm
STL
- BZN
1 stop21h 48m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$145
This American Airlines deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/115:42 am
STL
- FCA
1 stop6h 54m
American Airlines
Deal found 6/24![American Airlines logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 8/72:00 pm
STL
- BZN
2 stops20h 41m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$159
This United Airlines deal was found by Cheapflights users on 6/24. 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 8/1512:59 pm
STL
- FCA
2 stops9h 22m
United Airlines
Deal found 6/24![United Airlines logo]()
$160
This American Airlines deal was found by Cheapflights users on 6/27. 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 8/205:42 am
STL
- BZN
1 stop6h 23m
American Airlines
Deal found 6/27![American Airlines logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 7/262:00 pm
STL
- BZN
2 stops27h 19m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 6/26. 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.
Tue 8/46:34 pm
STL
- MSO
3 stops40h 00m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$179
This Southwest deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/247:45 pm
STL
- BZN
1 stop6h 30m
Southwest
Deal found 6/25![Southwest logo]()
$196
This American Airlines deal was found by Cheapflights users on 6/24. 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 10/157:38 am
STL
- FCA
1 stop5h 50m
American Airlines
Deal found 6/24![American Airlines logo]()
$202
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 7/244:57 pm
STL
- BZN
3 stops48h 01m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$213
This Kiwi.com deal was found by Cheapflights users on 6/24. 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.
Tue 8/113:41 pm
STL
- FCA
2 stops24h 58m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$214
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 June 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $304 (Delta) |
One-way from | $111 (Kiwi.com) |
Popular in | March |
Cheapest in | January |
Average price | $444 |
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 June 27, 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. LouisBillings
STL - BIL
STLBIL
Lambert-St Louis
Thu 10/22
9:00 am-7:48 pm
2 stops11h 48m
Billings Logan Intl
Wed 10/28
6:25 pm-12:36 am
1 stop5h 11m
$324
St. LouisHelena
STL - HLN
STLHLN
Lambert-St Louis
Sat 8/15
5:00 pm-10:30 pm
1 stop6h 30m
Helena
Thu 8/20
12:55 pm-6:55 pm
1 stop5h 00m
$329
St. LouisButte
STL - BTM
STLBTM
Lambert-St Louis
Sat 8/22
11:25 am-10:26 pm
2 stops12h 01m
Butte Silver Bow Co
Tue 8/25
8:37 am-4:34 pm
1 stop6h 57m
$334
St. LouisKalispell
STL - FCA
STLFCA
Lambert-St Louis
Fri 8/21
5:34 pm-11:56 pm
1 stop7h 22m
Kalispell Glacier Park
Fri 8/28
6:09 pm-12:41 am
1 stop5h 32m
$344
St. LouisHelena
STL - HLN
STLHLN
Lambert-St Louis
Wed 8/26
9:00 am-1:45 pm
1 stop5h 45m
Helena
Sun 8/30
2:35 pm-8:46 pm
1 stop5h 11m
$358
St. LouisBozeman
STL - BZN
STLBZN
Lambert-St Louis
Wed 9/23
4:05 pm-8:00 pm
1 stop4h 55m
Bozeman Gallatin Field
Mon 9/28
5:05 pm-12:35 am
1 stop6h 30m
$360
St. LouisBozeman
STL - BZN
STLBZN
Lambert-St Louis
Mon 8/10
5:34 pm-11:16 pm
1 stop6h 42m
Bozeman Gallatin Field
Sat 8/15
6:19 am-2:47 pm
1 stop7h 28m
$360
St. LouisBozeman
STL - BZN
STLBZN
Lambert-St Louis
Mon 7/20
5:10 am-9:37 am
1 stop5h 27m
Bozeman Gallatin Field
Tue 7/28
4:29 pm-11:57 pm
1 stop6h 28m
$369
St. LouisBillings
STL - BIL
STLBIL
Lambert-St Louis
Thu 10/22
5:10 am-9:46 am
1 stop5h 36m
Billings Logan Intl
Wed 10/28
5:00 am-12:37 pm
1 stop6h 37m
$379
St. LouisBozeman
STL - BZN
STLBZN
Lambert-St Louis
Sun 12/6
7:30 am-12:23 pm
1 stop5h 53m
Bozeman Gallatin Field
Sun 12/13
5:45 am-1:23 pm
1 stop6h 38m
$391
Showing 1-10 of 60 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-BIL
STL-GTF
STL-FCA
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-BIL
STL-GTF
STL-FCA
What is the cheapest month to book a flight from St. Louis to Montana?
Currently, October is the cheapest month in which you can book a flight from St. Louis to Montana (average of $149). 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?
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 34 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
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 June 27, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines,Southwest, 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
Boarding
8.1
Overall
7.9
Entertainment
7.0
Comfort
7.8
Crew
8.5
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Food
7.0
Boarding
8.1
Overall
7.9
Entertainment
7.0
Comfort
7.8
Crew
8.5
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Food
7.0
Boarding
8.1
Overall
7.9
Entertainment
7.0
Comfort
7.8
Crew
8.5
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Food
7.0
Boarding
8.1
Overall
7.9
Entertainment
7.0
Comfort
7.8
Crew
8.5
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Food
7.0
Boarding
8.1
Overall
7.9
Entertainment
7.0
Comfort
7.8
Crew
8.5
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Food
7.0
Boarding
8.1
Overall
7.9
Entertainment
7.0
Comfort
7.8
Crew
8.5
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
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
Complete your trip to Montana by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from St. Louis to Montana, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Montana flights
Browse other St. Louis and Montana flight options. Last updated on June 27, 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 June 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$179 | Average$409 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$187 | Average$400 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$245 | Average$451 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$257 | Average$447 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$262 | Average$474 | FlexibilityNo cancel fee | On-time71% |