$180+ Cheap flights from St. Louis (STL) to Montana
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BZN
Oct 26 — Nov 21
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 September 26, 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 September 26, 2026.
This United Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/58:50 am -
1 stop5h 59m
Mon 11/92:45 pm -
1 stop5h 14m
Deal found 9/21![United Airlines logo]()
$348
This United Airlines deal was found by Cheapflights users on 9/25. 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.
Tue 11/34:39 pm -
1 stop6h 51m
Sat 11/145:00 am -
1 stop6h 38m
Deal found 9/25![United Airlines logo]()
$349
This United Airlines deal was found by Cheapflights users on 9/23. 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 11/146:00 am -
2 stops8h 29m
Sun 11/227:00 am -
2 stops7h 43m
Deal found 9/23![United Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 9/24. 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.
Tue 10/201:29 pm -
1 stop6h 43m
Tue 10/2712:48 pm -
1 stop7h 52m
Deal found 9/24![United Airlines logo]()
$364
This Delta deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:00 pm -
1 stop6h 27m
Mon 10/266:31 pm -
1 stop5h 13m
Deal found 9/21![Delta logo]()
$369
This United Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/158:50 am -
1 stop5h 39m
Sat 11/212:42 pm -
1 stop5h 17m
Deal found 9/21![United Airlines logo]()
$374
This American Airlines deal was found by Cheapflights users on 9/24. 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 10/205:00 am -
1 stop8h 25m
Tue 10/271:47 pm -
2 stops9h 32m
Deal found 9/24![American Airlines logo]()
$374
This Delta deal was found by Cheapflights users on 9/25. 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.
Wed 10/219:47 am -
1 stop5h 54m
Sat 10/243:36 pm -
1 stop6h 45m
Deal found 9/25![Delta logo]()
$379
This Southwest deal was found by Cheapflights users on 9/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/202:25 pm -
2 stops8h 45m
Tue 10/278:05 am -
2 stops8h 40m
Deal found 9/24![Southwest logo]()
$379
This United Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:00 am -
1 stop6h 45m
Fri 11/276:30 am -
1 stop5h 08m
Deal found 9/21![United Airlines logo]()
$380
This American Airlines deal was found by Cheapflights users on 9/25. 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.
Tue 11/37:26 am -
2 stops14h 14m
Sat 11/141:23 pm -
2 stops9h 36m
Deal found 9/25![American Airlines logo]()
$385
This United Airlines deal was found by Cheapflights users on 9/24. 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.
Tue 10/2011:35 am -
2 stops11h 01m
Tue 10/276:14 am -
2 stops8h 29m
Deal found 9/24![United Airlines logo]()
$389
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 September 26, 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 September 26, 2026.
This Delta deal was found by Cheapflights users on 9/23. 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 1/257:30 am -
1 stop5h 49m
Sat 1/3012:58 pm -
1 stop7h 43m
Deal found 9/23![Delta logo]()
$349
This United Airlines deal was found by Cheapflights users on 9/25. 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.
Tue 11/34:39 pm -
1 stop6h 51m
Sat 11/145:00 am -
1 stop6h 38m
Deal found 9/25![United Airlines logo]()
$349
This American Airlines deal was found by Cheapflights users on 9/25. 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.
Tue 11/37:26 am -
2 stops14h 14m
Sat 11/141:23 pm -
2 stops9h 36m
Deal found 9/25![American Airlines logo]()
$385
This Alaska Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/244:42 pm -
1 stop7h 27m
Tue 10/271:55 pm -
1 stop9h 04m
Deal found 9/21![Alaska Airlines logo]()
$402
This Southwest deal was found by Cheapflights users on 9/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/255:25 am -
1 stop7h 35m
Sun 3/285:20 pm -
1 stop7h 35m
Deal found 9/24![Southwest logo]()
$441
This United Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/253:00 pm -
1 stop7h 19m
Sat 1/307:00 am -
1 stop4h 43m
Deal found 9/21![United Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 9/23. 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 10/219:47 am -
1 stop5h 54m
Sat 10/243:36 pm -
1 stop6h 45m
Deal found 9/23![Delta logo]()
$379
This United Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/55:00 am -
2 stops9h 49m
Mon 11/92:45 pm -
1 stop5h 14m
Deal found 9/21![United Airlines logo]()
$354
This Delta deal was found by Cheapflights users on 9/24. 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.
Thu 10/299:47 am -
1 stop5h 54m
Sun 11/112:28 pm -
1 stop7h 41m
Deal found 9/24![Delta logo]()
$379
This Delta deal was found by Cheapflights users on 9/22. 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 12/46:03 am -
1 stop7h 21m
Mon 12/76:00 am -
1 stop7h 44m
Deal found 9/22![Delta logo]()
$380
This United Airlines deal was found by Cheapflights users on 9/22. 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 10/211:29 pm -
2 stops9h 07m
Sat 10/2412:26 pm -
1 stop6h 15m
Deal found 9/22![United Airlines logo]()
$384
This Alaska Airlines deal was found by Cheapflights users on 9/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:00 am -
1 stop7h 22m
Sun 11/87:03 am -
1 stop15h 56m
Deal found 9/24![Alaska Airlines logo]()
$495
This United Airlines deal was found by Cheapflights users on 9/24. 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.
Tue 10/205:10 am -
1 stop5h 54m
Tue 10/276:14 am -
2 stops10h 55m
Deal found 9/24![United Airlines logo]()
$384
This American Airlines deal was found by Cheapflights users on 9/24. 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.
Wed 11/47:26 am -
2 stops13h 49m
Sun 11/81:06 pm -
1 stop8h 09m
Deal found 9/24![American Airlines logo]()
$517
This Delta deal was found by Cheapflights users on 9/26. 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 1/96:00 am -
1 stop8h 16m
Sun 1/173:15 pm -
1 stop7h 03m
Deal found 9/26![Delta logo]()
$405
This United Airlines deal was found by Cheapflights users on 9/25. 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 11/61:08 pm -
2 stops9h 43m
Sun 11/82:36 pm -
1 stop5h 25m
Deal found 9/25![United Airlines logo]()
$384
This United Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2310:53 am -
2 stops11h 37m
Fri 11/276:30 am -
1 stop5h 08m
Deal found 9/21![United Airlines logo]()
$385
This Delta deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/43:35 pm -
1 stop5h 19m
Sun 11/86:23 pm -
1 stop5h 21m
Deal found 9/21![Delta logo]()
$495
This United Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/64:39 pm -
1 stop5h 43m
Sat 10/102:37 pm -
1 stop4h 59m
Deal found 9/21![United Airlines logo]()
$418
This Delta deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected ” under the list of providers to see comparable flight deals.
Thu 2/183:45 pm -
1 stop5h 27m
Sun 2/218:00 am -
1 stop5h 31m
Deal found 9/21![Delta logo]()
$495
This United Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/99:13 am -
1 stop7h 20m
Tue 1/122:42 pm -
1 stop5h 17m
Deal found 9/21![United Airlines logo]()
$459
This Delta deal was found by Cheapflights users on 9/22. 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 12/132:17 pm -
2 stops11h 20m
Sun 12/206:23 pm -
1 stop5h 23m
Deal found 9/22![Delta logo]()
$514
This United Airlines deal was found by Cheapflights users on 9/25. 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 10/229:00 am -
1 stop5h 41m
Tue 10/276:30 am -
1 stop5h 08m
Deal found 9/25![United Airlines logo]()
$466
This United Airlines deal was found by Cheapflights users on 9/25. 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.
Sat 2/63:00 pm -
1 stop6h 59m
Tue 2/92:30 pm -
1 stop5h 29m
Deal found 9/25![United Airlines logo]()
$469
This United Airlines deal was found by Cheapflights users on 9/24. 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.
Mon 10/264:39 pm -
1 stop6h 12m
Fri 10/302:36 pm -
1 stop5h 23m
Deal found 9/24![United Airlines logo]()
$489
This United Airlines deal was found by Cheapflights users on 9/25. 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 10/304:39 pm -
1 stop6h 08m
Tue 11/36:15 am -
1 stop5h 23m
Deal found 9/25![United Airlines logo]()
$495
This United Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/74:39 pm -
1 stop5h 31m
Sun 10/114:00 pm -
1 stop6h 44m
Deal found 9/21![United Airlines logo]()
$510
This United Airlines deal was found by Cheapflights users on 9/23. 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 10/85:10 am -
1 stop5h 47m
Mon 10/1212:28 pm -
1 stop7h 53m
Deal found 9/23![United Airlines logo]()
$582
This United Airlines deal was found by Cheapflights users on 9/25. 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.
Sun 10/119:00 am -
1 stop5h 30m
Thu 10/152:05 pm -
1 stop5h 31m
Deal found 9/25![United Airlines logo]()
$724
This United Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/69:00 am -
1 stop5h 30m
Sat 10/102:05 pm -
1 stop8h 39m
Deal found 9/21![United Airlines logo]()
$1,265
Last-minute flights from St. Louis to MontanaDiscover last-minute flight deals from St. Louis to Montana. Data last updated September 26, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Montana. Data last updated September 26, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/24:39 pm -
1 stop7h 14m
Mon 10/54:00 pm -
1 stop6h 44m
Deal found 9/21![United Airlines logo]()
$444
This United Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/64:39 pm -
1 stop5h 43m
Sat 10/102:37 pm -
1 stop4h 59m
Deal found 9/21![United Airlines logo]()
$418
This United Airlines deal was found by Cheapflights users on 9/24. 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 10/94:39 pm -
1 stop5h 57m
Tue 10/135:12 pm -
1 stop5h 32m
Deal found 9/24![United Airlines logo]()
$427
This United Airlines deal was found by Cheapflights users on 9/23. 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 10/155:10 am -
1 stop5h 54m
Mon 10/195:12 pm -
1 stop5h 32m
Deal found 9/23![United Airlines logo]()
$431
This Delta deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:00 pm -
1 stop6h 27m
Mon 10/266:31 pm -
1 stop5h 13m
Deal found 9/21![Delta logo]()
$369
This United Airlines deal was found by Cheapflights users on 9/24. 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.
Tue 10/201:29 pm -
1 stop6h 43m
Tue 10/2712:48 pm -
1 stop7h 52m
Deal found 9/24![United Airlines logo]()
$364
This American Airlines deal was found by Cheapflights users on 9/24. 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 10/205:00 am -
1 stop8h 25m
Tue 10/271:47 pm -
2 stops9h 32m
Deal found 9/24![American Airlines logo]()
$374
This Southwest deal was found by Cheapflights users on 9/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/202:25 pm -
2 stops8h 45m
Tue 10/278:05 am -
2 stops8h 40m
Deal found 9/24![Southwest logo]()
$379
This United Airlines deal was found by Cheapflights users on 9/24. 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.
Tue 10/2011:35 am -
2 stops11h 01m
Tue 10/276:14 am -
2 stops8h 29m
Deal found 9/24![United Airlines logo]()
$389
This Delta deal was found by Cheapflights users on 9/23. 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 10/209:47 am -
1 stop5h 54m
Tue 10/2712:28 pm -
2 stops9h 53m
Deal found 9/23![Delta logo]()
$444
This Delta deal was found by Cheapflights users on 9/25. 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.
Wed 10/219:47 am -
1 stop5h 54m
Sat 10/243:36 pm -
1 stop6h 45m
Deal found 9/25![Delta logo]()
$379
This Alaska Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/244:42 pm -
1 stop7h 27m
Tue 10/271:55 pm -
1 stop9h 04m
Deal found 9/21![Alaska Airlines logo]()
$402
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 September 26, 2026.
Search for one-way flight options from St. Louis to Montana. Find affordable one-way fares based on user searches. Data last updated September 26, 2026.
This United Airlines deal was found by Cheapflights users on 9/22. 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 10/201:29 pm -
1 stop6h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![United Airlines logo]()
$180
This American Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:29 am -
1 stop6h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![American Airlines logo]()
$190
This United Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/161:29 pm -
1 stop6h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![United Airlines logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 9/24. 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 10/247:42 pm -
2 stops25h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Multiple Airlines logo]()
$215
This United Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/225:10 am -
2 stops11h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![United Airlines logo]()
$219
This American Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/117:26 am -
2 stops14h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![American Airlines logo]()
$231
This Delta deal was found by Cheapflights users on 9/24. 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 1/63:45 pm -
1 stop5h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Delta logo]()
$241
This United Airlines deal was found by Cheapflights users on 9/24. 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.
Wed 1/61:09 pm -
2 stops9h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![United Airlines logo]()
$246
This American Airlines deal was found by Cheapflights users on 9/24. 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 10/246:32 am -
1 stop7h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![American Airlines logo]()
$255
This United Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/161:29 pm -
2 stops9h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![United Airlines logo]()
$257
This Southwest deal was found by Cheapflights users on 9/22. 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.
Sun 10/186:20 am -
1 stop5h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Southwest logo]()
$259
This Kiwi.com deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/182:00 pm -
2 stops27h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Multiple Airlines logo]()
$261
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 September 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $348 (United Airlines) |
One-way from | $180 (United Airlines) |
Popular in | March |
Cheapest in | January |
Average price | $420 |
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 7,457,451 searches. Data last updated September 26, 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 Lambert-St Louis - BZN Bozeman Gallatin Field
STLBZN
Lambert-St Louis
Tue 10/20
1:29 pm-7:12 pm
1 stop6h 43m
Bozeman Gallatin Field
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$180
St. LouisKalispell
STL Lambert-St Louis - FCA Kalispell Glacier Park
STLFCA
Lambert-St Louis
Fri 10/16
7:29 am-1:27 pm
1 stop6h 58m
Kalispell Glacier Park
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$190
St. LouisKalispell
STL Lambert-St Louis - FCA Kalispell Glacier Park
STLFCA
Lambert-St Louis
Thu 10/22
5:10 am-10:04 am
1 stop5h 54m
Kalispell Glacier Park
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$190
St. LouisBozeman
STL Lambert-St Louis - BZN Bozeman Gallatin Field
STLBZN
Lambert-St Louis
Fri 10/16
1:29 pm-7:12 pm
1 stop6h 43m
Bozeman Gallatin Field
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$191
St. LouisBillings
STL Lambert-St Louis - BIL Billings Logan Intl
STLBIL
Lambert-St Louis
Wed 11/11
7:26 am-8:40 pm
2 stops14h 14m
Billings Logan Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$231
St. LouisMissoula
STL Lambert-St Louis - MSO Missoula Johnson-Bell Field
STLMSO
Lambert-St Louis
Wed 1/6
3:45 pm-8:12 pm
1 stop5h 27m
Missoula Johnson-Bell Field
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$241
St. LouisMissoula
STL Lambert-St Louis - MSO Missoula Johnson-Bell Field
STLMSO
Lambert-St Louis
Wed 1/6
1:09 pm-9:26 pm
2 stops9h 17m
Missoula Johnson-Bell Field
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$246
St. LouisKalispell
STL Lambert-St Louis - FCA Kalispell Glacier Park
STLFCA
Lambert-St Louis
Fri 10/16
1:29 pm-9:36 pm
2 stops9h 07m
Kalispell Glacier Park
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$257
Quickest round-trip
St. LouisBozeman
STL Lambert-St Louis - BZN Bozeman Gallatin Field
STLBZN
Lambert-St Louis
Sun 10/18
6:20 am-10:25 am
1 stop5h 05m
Bozeman Gallatin Field
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$259
St. LouisBozeman
STL Lambert-St Louis - BZN Bozeman Gallatin Field
STLBZN
Lambert-St Louis
Tue 12/29
5:16 pm-11:35 pm
1 stop7h 19m
Bozeman Gallatin Field
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$270
Showing 1-10 of 56 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-BIL
STL-BZN
STL-FCA
STL-GTF
STL-MSO
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-BIL
STL-BZN
STL-FCA
STL-GTF
What is the cheapest month to book a flight from St. Louis to Montana?
Currently, January is the cheapest month in which you can book a flight from St. Louis to Montana (average of $340). Flying from St. Louis to Montana in July is currently the most expensive (average of $641). 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?
Airfare is typical for this route at the moment.
St. Louis to Montana flights typically cost between $344 and $475 in October.The cheapest round-trip price found within the last 5 days was $364 on United Airlines (Oct 20-Oct 27).
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 25 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 September 26, 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
Comfort
8.0
Crew
8.6
Food
7.0
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentEdward,Sep 2026
MCO - BWI
Boarding
8.1
Comfort
8.0
Crew
8.6
Food
7.0
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentEdward,Sep 2026
MCO - BWI
Boarding
8.1
Comfort
8.0
Crew
8.6
Food
7.0
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentEdward,Sep 2026
MCO - BWI
Boarding
8.1
Comfort
8.0
Crew
8.6
Food
7.0
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentEdward,Sep 2026
MCO - BWI
Boarding
8.1
Comfort
8.0
Crew
8.6
Food
7.0
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentEdward,Sep 2026
MCO - BWI
Boarding
8.1
Comfort
8.0
Crew
8.6
Food
7.0
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentEdward,Sep 2026
MCO - BWI
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 September 26, 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 7,457,451 searches. Data last updated September 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$179 | Average$419 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$192 | Average$401 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$210 | Average$491 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$246 | Average$457 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$287 | Average$447 | FlexibilityNo cancel fee | On-time75% |