$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 5/27. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BZN
Apr 26 — May 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 March 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 March 27, 2026.
This Southwest deal was found by Cheapflights users on 3/23. 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 4/223:55 pm
STL
- BZN
1 stop7h 00m
Southwest
Wed 4/299:55 am
BZN
- STL
1 stop7h 00m
Southwest
Deal found 3/23![Southwest logo]()
$183
This Southwest deal was found by Cheapflights users on 3/23. 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.
Mon 4/206:45 pm
STL
- BZN
1 stop5h 15m
Southwest
Mon 4/274:20 pm
BZN
- STL
1 stop6h 30m
Southwest
Deal found 3/23![Southwest logo]()
$216
This Southwest deal was found by Cheapflights users on 3/26. 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.
Thu 4/168:25 am
STL
- BZN
1 stop8h 15m
Southwest
Tue 4/213:20 pm
BZN
- STL
1 stop6h 50m
Southwest
Deal found 3/26![Southwest logo]()
$232
This Southwest deal was found by Cheapflights users on 3/26. 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.
Fri 5/86:45 pm
STL
- BZN
1 stop5h 15m
Southwest
Wed 5/133:20 pm
BZN
- STL
1 stop6h 50m
Southwest
Deal found 3/26![Southwest logo]()
$241
This United Airlines deal was found by Cheapflights users on 3/26. 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 6/45:10 am
STL
- BZN
1 stop5h 27m
United Airlines
Tue 6/94:29 pm
BZN
- STL
1 stop6h 28m
United Airlines
Deal found 3/26![United Airlines logo]()
$257
This Southwest deal was found by Cheapflights users on 3/26. 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.
Thu 4/308:25 am
STL
- BZN
1 stop8h 15m
Southwest
Mon 5/44:20 pm
BZN
- STL
1 stop6h 30m
Southwest
Deal found 3/26![Southwest logo]()
$263
This Delta deal was found by Cheapflights users on 3/23. 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.
Thu 4/166:00 am
STL
- BZN
1 stop8h 36m
Delta
Sun 4/195:59 am
BZN
- STL
1 stop4h 44m
Delta
Deal found 3/23![Delta logo]()
$264
This Delta deal was found by Cheapflights users on 3/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/236:45 pm
STL
- BZN
1 stop6h 24m
Delta
Sat 5/22:53 pm
BZN
- STL
1 stop7h 43m
Delta
Deal found 3/27![Delta logo]()
$271
This Delta deal was found by Cheapflights users on 3/22. 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 4/146:45 pm
STL
- FCA
1 stop5h 42m
Delta
Tue 4/216:10 pm
FCA
- STL
1 stop5h 15m
Delta
Deal found 3/22![Delta logo]()
$297
This Delta deal was found by Cheapflights users on 3/24. 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.
Fri 4/177:25 am
STL
- FCA
2 stops11h 05m
Delta
Wed 4/222:49 pm
FCA
- STL
1 stop7h 24m
Delta
Deal found 3/24![Delta logo]()
$302
This Delta deal was found by Cheapflights users on 3/23. 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.
Wed 4/221:03 pm
STL
- FCA
2 stops11h 24m
Delta
Wed 4/295:05 am
FCA
- STL
2 stops10h 45m
Delta
Deal found 3/23![Delta logo]()
$307
This Delta deal was found by Cheapflights users on 3/24. 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 4/86:29 am
STL
- FCA
1 stop7h 59m
Delta
Sun 4/125:56 pm
FCA
- STL
1 stop5h 25m
Delta
Deal found 3/24![Delta logo]()
$309
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 March 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 March 27, 2026.
This Southwest deal was found by Cheapflights users on 3/26. 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.
Thu 6/47:45 pm
STL
- BZN
1 stop6h 25m
Southwest
Tue 6/91:30 pm
BZN
- STL
2 stops9h 25m
Southwest
Deal found 3/26![Southwest logo]()
$276
This United Airlines deal was found by Cheapflights users on 3/26. 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 6/45:10 am
STL
- BZN
1 stop5h 27m
United Airlines
Mon 6/84:29 pm
BZN
- STL
1 stop6h 28m
United Airlines
Deal found 3/26![United Airlines logo]()
$286
This Delta deal was found by Cheapflights users on 3/22. 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 4/146:45 pm
STL
- FCA
1 stop5h 42m
Delta
Tue 4/216:10 pm
FCA
- STL
1 stop5h 15m
Delta
Deal found 3/22![Delta logo]()
$297
This Delta deal was found by Cheapflights users on 3/24. 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 5/267:59 pm
STL
- BZN
1 stop5h 00m
Delta
Wed 6/36:35 pm
BZN
- STL
1 stop4h 55m
Delta
Deal found 3/24![Delta logo]()
$299
This United Airlines deal was found by Cheapflights users on 3/24. 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.
Fri 6/55:10 am
STL
- BZN
1 stop5h 27m
United Airlines
Wed 6/1010:33 am
BZN
- STL
1 stop5h 00m
United Airlines
Deal found 3/24![United Airlines logo]()
$299
This Southwest deal was found by Cheapflights users on 3/26. 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.
Fri 5/82:25 pm
STL
- BZN
2 stops9h 35m
Southwest
Wed 5/133:20 pm
BZN
- STL
1 stop6h 50m
Southwest
Deal found 3/26![Southwest logo]()
$306
This Expedia deal was found by Cheapflights users on 3/24. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/96:35 am
STL
- HLN
2 stops35h 14m
Alaska Airlines
Tue 6/235:26 pm
HLN
- STL
1 stop19h 29m
Alaska Airlines
Deal found 3/24![Alaska Airlines logo]()
$644
This Delta deal was found by Cheapflights users on 3/24. 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 4/86:29 am
STL
- FCA
1 stop7h 59m
Delta
Sun 4/125:56 pm
FCA
- STL
1 stop5h 25m
Delta
Deal found 3/24![Delta logo]()
$309
This United Airlines deal was found by Cheapflights users on 3/22. 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.
Wed 6/175:10 am
STL
- BZN
1 stop5h 27m
United Airlines
Mon 6/224:29 pm
BZN
- STL
1 stop6h 28m
United Airlines
Deal found 3/22![United Airlines logo]()
$315
This Delta deal was found by Cheapflights users on 3/24. 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 5/95:00 pm
STL
- BIL
1 stop6h 52m
Delta
Tue 5/125:30 am
BIL
- STL
1 stop7h 02m
Delta
Deal found 3/24![Delta logo]()
$319
This United Airlines deal was found by Cheapflights users on 3/22. 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 5/295:10 am
STL
- BIL
1 stop5h 25m
United Airlines
Mon 6/14:10 pm
BIL
- STL
1 stop6h 47m
United Airlines
Deal found 3/22![United Airlines logo]()
$339
This Delta deal was found by Cheapflights users on 3/23. 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.
Thu 5/2810:19 am
STL
- BIL
2 stops13h 33m
Delta
Tue 6/25:30 am
BIL
- STL
1 stop7h 02m
Delta
Deal found 3/23![Delta logo]()
$324
This Southwest deal was found by Cheapflights users on 3/22. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/186:45 pm
STL
- BZN
1 stop5h 15m
Southwest
Thu 5/214:20 pm
BZN
- STL
1 stop6h 30m
Southwest
Deal found 3/22![Southwest logo]()
$395
This United Airlines deal was found by Cheapflights users on 3/23. 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 8/119:00 am
STL
- MSO
1 stop8h 10m
United Airlines
Tue 8/182:27 pm
MSO
- STL
1 stop5h 12m
United Airlines
Deal found 3/23![United Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 3/26. 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.
Fri 5/86:00 am
STL
- BIL
2 stops12h 39m
Delta
Sun 5/105:30 am
BIL
- STL
1 stop7h 02m
Delta
Deal found 3/26![Delta logo]()
$324
This United Airlines deal was found by Cheapflights users on 3/22. 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 6/25:10 am
STL
- BZN
1 stop5h 27m
United Airlines
Sat 6/134:20 pm
BZN
- STL
1 stop6h 37m
United Airlines
Deal found 3/22![United Airlines logo]()
$363
This Delta deal was found by Cheapflights users on 3/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/47:00 am
STL
- GTF
1 stop6h 27m
Delta
Tue 5/121:07 pm
GTF
- STL
2 stops9h 52m
Delta
Deal found 3/27![Delta logo]()
$344
This United Airlines deal was found by Cheapflights users on 3/26. 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 5/75:59 pm
STL
- BIL
1 stop5h 46m
United Airlines
Sun 5/106:35 am
BIL
- STL
1 stop5h 38m
United Airlines
Deal found 3/26![United Airlines logo]()
$368
This Delta deal was found by Cheapflights users on 3/25. 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.
Tue 6/97:52 pm
STL
- MSO
1 stop5h 36m
Delta
Mon 6/156:29 pm
MSO
- STL
1 stop5h 10m
Delta
Deal found 3/25![Delta logo]()
$349
This United Airlines deal was found by Cheapflights users on 3/23. 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.
Sun 5/316:00 am
STL
- FCA
1 stop6h 29m
United Airlines
Wed 6/105:28 pm
FCA
- STL
1 stop5h 29m
United Airlines
Deal found 3/23![United Airlines logo]()
$375
This Delta deal was found by Cheapflights users on 3/22. 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.
Sun 8/238:50 am
STL
- MSO
1 stop6h 47m
Delta
Sun 8/305:45 am
MSO
- STL
1 stop4h 45m
Delta
Deal found 3/22![Delta logo]()
$349
This United Airlines deal was found by Cheapflights users on 3/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/92:40 pm
STL
- BIL
1 stop7h 17m
United Airlines
Mon 4/132:35 pm
BIL
- STL
1 stop5h 19m
United Airlines
Deal found 3/25![United Airlines logo]()
$380
This Delta deal was found by Cheapflights users on 3/23. 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.
Mon 8/106:59 pm
STL
- MSO
1 stop6h 25m
Delta
Mon 8/176:10 pm
MSO
- STL
1 stop5h 26m
Delta
Deal found 3/23![Delta logo]()
$349
This United Airlines deal was found by Cheapflights users on 3/23. 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.
Fri 5/225:10 am
STL
- BZN
1 stop5h 27m
United Airlines
Thu 5/284:20 pm
BZN
- STL
1 stop6h 59m
United Airlines
Deal found 3/23![United Airlines logo]()
$380
This Delta deal was found by Cheapflights users on 3/25. 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.
Sat 5/97:00 am
STL
- HLN
1 stop6h 23m
Delta
Sat 5/165:45 am
HLN
- STL
1 stop6h 47m
Delta
Deal found 3/25![Delta logo]()
$349
This United Airlines deal was found by Cheapflights users on 3/24. 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 4/182:40 pm
STL
- FCA
1 stop8h 07m
United Airlines
Wed 4/222:33 pm
FCA
- STL
1 stop5h 21m
United Airlines
Deal found 3/24![United Airlines logo]()
$387
This Delta deal was found by Cheapflights users on 3/23. 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 8/156:59 pm
STL
- MSO
1 stop6h 25m
Delta
Sat 8/225:40 am
MSO
- STL
2 stops10h 05m
Delta
Deal found 3/23![Delta logo]()
$354
This Alaska Airlines deal was found by Cheapflights users on 3/23. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/135:33 pm
STL
- HLN
2 stops24h 16m
Alaska Airlines
Thu 6/185:26 pm
HLN
- STL
2 stops22h 07m
Alaska Airlines
Deal found 3/23![Alaska Airlines logo]()
$920
This United Airlines deal was found by Cheapflights users on 3/24. 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 6/45:41 pm
STL
- BIL
1 stop5h 34m
United Airlines
Sun 6/76:00 pm
BIL
- STL
1 stop4h 57m
United Airlines
Deal found 3/24![United Airlines logo]()
$399
This Delta deal was found by Cheapflights users on 3/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/51:46 pm
STL
- GTF
2 stops9h 43m
Delta
Sat 5/91:07 pm
GTF
- STL
1 stop6h 59m
Delta
Deal found 3/27![Delta logo]()
$369
Last-minute flights from St. Louis to MontanaDiscover last-minute flight deals from St. Louis to Montana. Data last updated March 27, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Montana. Data last updated March 27, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 3/23. 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.
Tue 4/73:05 pm
STL
- BIL
1 stop6h 14m
Delta
Sat 4/116:25 am
BIL
- STL
1 stop6h 59m
Delta
Deal found 3/23![Delta logo]()
$349
This Delta deal was found by Cheapflights users on 3/24. 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 4/86:29 am
STL
- FCA
1 stop7h 59m
Delta
Sun 4/125:56 pm
FCA
- STL
1 stop5h 25m
Delta
Deal found 3/24![Delta logo]()
$309
This Delta deal was found by Cheapflights users on 3/25. 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.
Thu 4/91:39 pm
STL
- FCA
2 stops11h 02m
Delta
Mon 4/132:49 pm
FCA
- STL
1 stop7h 25m
Delta
Deal found 3/25![Delta logo]()
$349
This Delta deal was found by Cheapflights users on 3/22. 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 4/146:45 pm
STL
- FCA
1 stop5h 42m
Delta
Tue 4/216:10 pm
FCA
- STL
1 stop5h 15m
Delta
Deal found 3/22![Delta logo]()
$297
This Southwest deal was found by Cheapflights users on 3/26. 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.
Thu 4/168:25 am
STL
- BZN
1 stop8h 15m
Southwest
Tue 4/213:20 pm
BZN
- STL
1 stop6h 50m
Southwest
Deal found 3/26![Southwest logo]()
$232
This Delta deal was found by Cheapflights users on 3/23. 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.
Thu 4/166:00 am
STL
- BZN
1 stop8h 36m
Delta
Sun 4/195:59 am
BZN
- STL
1 stop4h 44m
Delta
Deal found 3/23![Delta logo]()
$264
This Delta deal was found by Cheapflights users on 3/24. 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.
Fri 4/177:25 am
STL
- FCA
2 stops11h 05m
Delta
Wed 4/222:49 pm
FCA
- STL
1 stop7h 24m
Delta
Deal found 3/24![Delta logo]()
$302
This Southwest deal was found by Cheapflights users on 3/23. 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.
Mon 4/206:45 pm
STL
- BZN
1 stop5h 15m
Southwest
Mon 4/274:20 pm
BZN
- STL
1 stop6h 30m
Southwest
Deal found 3/23![Southwest logo]()
$216
This Southwest deal was found by Cheapflights users on 3/23. 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 4/223:55 pm
STL
- BZN
1 stop7h 00m
Southwest
Wed 4/299:55 am
BZN
- STL
1 stop7h 00m
Southwest
Deal found 3/23![Southwest logo]()
$183
This Delta deal was found by Cheapflights users on 3/23. 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.
Wed 4/221:03 pm
STL
- FCA
2 stops11h 24m
Delta
Wed 4/295:05 am
FCA
- STL
2 stops10h 45m
Delta
Deal found 3/23![Delta logo]()
$307
This Delta deal was found by Cheapflights users on 3/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/236:45 pm
STL
- BZN
1 stop6h 24m
Delta
Sat 5/22:53 pm
BZN
- STL
1 stop7h 43m
Delta
Deal found 3/27![Delta logo]()
$271
This Southwest deal was found by Cheapflights users on 3/26. 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.
Thu 4/308:25 am
STL
- BZN
1 stop8h 15m
Southwest
Mon 5/44:20 pm
BZN
- STL
1 stop6h 30m
Southwest
Deal found 3/26![Southwest logo]()
$263
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 March 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 March 27, 2026.
This United Airlines deal was found by Cheapflights users on 3/22. 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.
Wed 5/275:10 am
STL
- BZN
1 stop5h 27m
United Airlines
Deal found 3/22![United Airlines logo]()
$136
This Delta deal was found by Cheapflights users on 3/23. 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.
Mon 4/66:12 pm
STL
- BZN
1 stop5h 58m
Delta
Deal found 3/23![Delta logo]()
$150
This Kiwi.com deal was found by Cheapflights users on 3/26. 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.
Sat 5/98:08 pm
STL
- FCA
2 stops16h 35m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$159
This United Airlines deal was found by Cheapflights users on 3/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/82:35 pm
STL
- FCA
1 stop8h 22m
United Airlines
Deal found 3/25![United Airlines logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 3/25. 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.
Fri 5/88:08 pm
STL
- FCA
2 stops40h 35m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$168
This United Airlines deal was found by Cheapflights users on 3/23. 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.
Thu 5/215:10 am
STL
- BZN
1 stop5h 27m
United Airlines
Deal found 3/23![United Airlines logo]()
$170
This United Airlines deal was found by Cheapflights users on 3/26. 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 6/65:10 am
STL
- BZN
1 stop5h 27m
United Airlines
Deal found 3/26![United Airlines logo]()
$174
This Delta deal was found by Cheapflights users on 3/25. 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.
Sat 5/25:00 pm
STL
- MSO
1 stop7h 11m
Delta
Deal found 3/25![Delta logo]()
$175
This United Airlines deal was found by Cheapflights users on 3/23. 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 4/152:40 pm
STL
- HLN
1 stop7h 53m
United Airlines
Deal found 3/23![United Airlines logo]()
$175
This Delta deal was found by Cheapflights users on 3/22. 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.
Sat 6/65:00 pm
STL
- BZN
1 stop6h 02m
Delta
Deal found 3/22![Delta logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 3/25. 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.
Fri 5/154:19 pm
STL
- FCA
2 stops44h 24m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$191
This American Airlines deal was found by Cheapflights users on 3/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/305:20 am
STL
- BZN
1 stop8h 33m
American Airlines
Deal found 3/25![American Airlines logo]()
$200
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 March 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $183 (Southwest) |
One-way from | $136 (United Airlines) |
Popular in | March |
Cheapest in | January |
Average price | $501 |
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 March 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. LouisBozeman
STL - BZN
STLBZN
Lambert-St Louis
Thu 6/4
7:45 pm-1:10 am
1 stop6h 25m
Bozeman Gallatin Field
Tue 6/9
1:30 pm-11:55 pm
2 stops9h 25m
$276
St. LouisBozeman
STL - BZN
STLBZN
Lambert-St Louis
Thu 6/4
5:10 am-9:37 am
1 stop5h 27m
Bozeman Gallatin Field
Mon 6/8
4:29 pm-11:57 pm
1 stop6h 28m
$286
St. LouisKalispell
STL - FCA
STLFCA
Lambert-St Louis
Tue 4/14
6:45 pm-11:27 pm
1 stop5h 42m
Kalispell Glacier Park
Tue 4/21
6:10 pm-12:25 am
1 stop5h 15m
$297
Quickest round-trip
St. LouisBozeman
STL - BZN
STLBZN
Lambert-St Louis
Tue 5/26
7:59 pm-11:59 pm
1 stop5h 00m
Bozeman Gallatin Field
Wed 6/3
6:35 pm-12:30 am
1 stop4h 55m
$299
St. LouisBozeman
STL - BZN
STLBZN
Lambert-St Louis
Fri 6/5
5:10 am-9:37 am
1 stop5h 27m
Bozeman Gallatin Field
Wed 6/10
10:33 am-4:33 pm
1 stop5h 00m
$299
St. LouisBozeman
STL - BZN
STLBZN
Lambert-St Louis
Fri 5/8
2:25 pm-11:00 pm
2 stops9h 35m
Bozeman Gallatin Field
Wed 5/13
3:20 pm-11:10 pm
1 stop6h 50m
$306
St. LouisKalispell
STL - FCA
STLFCA
Lambert-St Louis
Wed 4/8
6:29 am-1:28 pm
1 stop7h 59m
Kalispell Glacier Park
Sun 4/12
5:56 pm-12:21 am
1 stop5h 25m
$309
St. LouisBozeman
STL - BZN
STLBZN
Lambert-St Louis
Wed 6/17
5:10 am-9:37 am
1 stop5h 27m
Bozeman Gallatin Field
Mon 6/22
4:29 pm-11:57 pm
1 stop6h 28m
$315
St. LouisBillings
STL - BIL
STLBIL
Lambert-St Louis
Sat 5/9
5:00 pm-10:52 pm
1 stop6h 52m
Billings Logan Intl
Tue 5/12
5:30 am-1:32 pm
1 stop7h 02m
$319
St. LouisBillings
STL - BIL
STLBIL
Lambert-St Louis
Thu 5/28
10:19 am-10:52 pm
2 stops13h 33m
Billings Logan Intl
Tue 6/2
5:30 am-1:32 pm
1 stop7h 02m
$324
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-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
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 $179). Flying from St. Louis to Montana in December is currently the most expensive (average of $266). 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 March 27, 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.
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Food
7.0
Overall
8.0
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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Complete your trip
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St. Louis and Montana flights
Browse other St. Louis and Montana flight options. Last updated on March 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 March 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$179 | Average$377 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$192 | Average$436 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$237 | Average$410 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$238 | Average$395 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$242 | Average$441 | FlexibilityNo cancel fee | On-time69% |