$185+ Cheap flights from Portland, ME (PWM) 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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — BZN
Sep 21 — Sep 281
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 Portland to MontanaExplore the most affordable flight options available from Portland to Montana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 22, 2026.
Explore the most affordable flight options available from Portland to Montana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 22, 2026.
This American Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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 10/217:00 am -
1 stop7h 25m
Mon 10/261:15 pm -
1 stop8h 25m
Deal found 8/17![American Airlines logo]()
$369
This Delta deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/54:47 pm -
2 stops8h 42m
Wed 11/112:31 pm -
1 stop7h 02m
Deal found 8/18![Delta logo]()
$374
This Delta deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:01 am -
1 stop9h 18m
Wed 11/112:31 pm -
1 stop7h 02m
Deal found 8/18![Delta logo]()
$379
This United Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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 11/65:50 am -
2 stops11h 40m
Wed 11/1112:48 pm -
1 stop7h 03m
Deal found 8/17![United Airlines logo]()
$384
This Southwest deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/231:05 pm -
2 stops12h 15m
Mon 10/267:05 am -
2 stops12h 45m
Deal found 8/20![Southwest logo]()
$405
This American Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/77:00 am -
1 stop7h 25m
Tue 10/131:15 pm -
1 stop8h 25m
Deal found 8/18![American Airlines logo]()
$423
This Delta deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:01 am -
1 stop9h 18m
Thu 11/122:31 pm -
1 stop7h 02m
Deal found 8/18![Delta logo]()
$424
This American Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/17:32 am -
2 stops15h 11m
Tue 10/131:15 pm -
1 stop8h 25m
Deal found 8/18![American Airlines logo]()
$428
This United Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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 10/313:23 pm -
1 stop8h 15m
Tue 11/36:30 am -
1 stop7h 32m
Deal found 8/17![United Airlines logo]()
$448
This Delta deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/76:01 am -
1 stop9h 18m
Tue 11/107:00 am -
2 stops14h 55m
Deal found 8/19![Delta logo]()
$451
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:03 am -
1 stop7h 39m
Sun 9/67:15 am -
2 stops14h 44m
Deal found 8/18![United Airlines logo]()
$464
This United Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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 10/247:58 am -
2 stops11h 18m
Wed 10/287:00 am -
1 stop7h 02m
Deal found 8/17![United Airlines logo]()
$464
Best flights from Portland to MontanaDiscover carefully curated flight deals from Portland to Montana that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 22, 2026.
Discover carefully curated flight deals from Portland to Montana that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 22, 2026.
This Delta deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/236:00 am -
1 stop9h 16m
Sat 1/306:00 am -
2 stops14h 23m
Deal found 8/19![Delta logo]()
$374
This United Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/65:50 am -
2 stops11h 40m
Wed 11/1112:48 pm -
2 stops8h 33m
Deal found 8/19![United Airlines logo]()
$421
This American Airlines deal was found by Cheapflights users on 8/21. 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 10/307:00 am -
1 stop7h 35m
Sun 11/81:10 pm -
1 stop20h 49m
Deal found 8/21![American Airlines logo]()
$492
This Southwest deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/125:25 am -
2 stops13h 40m
Wed 2/172:25 pm -
2 stops19h 45m
Deal found 8/20![Southwest logo]()
$534
This United Airlines deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/313:23 pm -
1 stop8h 15m
Wed 11/46:30 am -
1 stop7h 32m
Deal found 8/20![United Airlines logo]()
$448
This United Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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 10/313:23 pm -
1 stop8h 15m
Tue 11/36:30 am -
1 stop7h 32m
Deal found 8/17![United Airlines logo]()
$448
This Delta deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/74:47 pm -
2 stops9h 40m
Tue 10/132:29 pm -
1 stop7h 06m
Deal found 8/18![Delta logo]()
$509
This American Airlines deal was found by Cheapflights users on 8/22. 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.
Thu 9/2410:47 am -
2 stops14h 01m
Fri 10/212:28 pm -
1 stop9h 19m
Deal found 8/22![American Airlines logo]()
$549
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals ”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/288:47 am -
2 stops14h 51m
Wed 11/46:30 am -
1 stop7h 32m
Deal found 8/18![United Airlines logo]()
$454
This Delta deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/232:35 pm -
2 stops11h 23m
Sun 1/3112:36 pm -
1 stop7h 47m
Deal found 8/20![Delta logo]()
$519
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:03 am -
1 stop7h 39m
Sun 9/67:15 am -
2 stops14h 44m
Deal found 8/18![United Airlines logo]()
$464
This American Airlines deal was found by Cheapflights users on 8/22. 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.
Sat 9/266:30 am -
2 stops17h 40m
Sat 10/312:28 pm -
1 stop9h 19m
Deal found 8/22![American Airlines logo]()
$573
This United Airlines deal was found by Cheapflights users on 8/21. 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 10/2411:35 am -
2 stops13h 18m
Wed 10/285:00 am -
1 stop9h 02m
Deal found 8/21![United Airlines logo]()
$464
This Delta deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/304:47 pm -
2 stops9h 44m
Sun 11/88:33 am -
2 stops12h 45m
Deal found 8/21![Delta logo]()
$569
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/313:23 pm -
1 stop8h 07m
Tue 11/36:30 am -
1 stop7h 32m
Deal found 8/18![United Airlines logo]()
$469
This United Airlines deal was found by Cheapflights users on 8/21. 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 10/313:23 pm -
1 stop8h 08m
Wed 11/46:28 am -
1 stop7h 34m
Deal found 8/21![United Airlines logo]()
$489
This United Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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 1/99:45 am -
2 stops10h 40m
Wed 1/139:45 am -
2 stops9h 42m
Deal found 8/17![United Airlines logo]()
$499
This United Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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 1/279:45 am -
2 stops13h 14m
Sat 1/307:00 am -
2 stops13h 57m
Deal found 8/17![United Airlines logo]()
$499
This United Airlines deal was found by Cheapflights users on 8/21. 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 10/246:00 am -
1 stop7h 24m
Wed 10/286:15 am -
1 stop7h 47m
Deal found 8/21![United Airlines logo]()
$529
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/308:47 am -
2 stops15h 00m
Sun 11/86:15 am -
1 stop7h 47m
Deal found 8/18![United Airlines logo]()
$574
This United Airlines deal was found by Cheapflights users on 8/21. 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 10/75:15 am -
2 stops12h 02m
Tue 10/1312:53 pm -
1 stop7h 01m
Deal found 8/21![United Airlines logo]()
$618
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:06 am -
1 stop8h 04m
Fri 9/2512:53 pm -
1 stop6h 53m
Deal found 8/18![United Airlines logo]()
$624
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:06 am -
1 stop8h 04m
Fri 9/183:23 pm -
2 stops15h 45m
Deal found 8/18![United Airlines logo]()
$639
This United Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/33:37 pm -
1 stop7h 53m
Mon 9/76:15 am -
1 stop7h 36m
Deal found 8/19![United Airlines logo]()
$1,610
Last-minute flights from Portland to MontanaDiscover last-minute flight deals from Portland to Montana. Data last updated August 22, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Montana. Data last updated August 22, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:03 am -
1 stop7h 39m
Tue 8/256:15 am -
1 stop7h 36m
Deal found 8/19![United Airlines logo]()
$571
This American Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/258:00 am -
1 stop9h 25m
Tue 9/112:55 pm -
1 stop7h 53m
Deal found 8/18![American Airlines logo]()
$555
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:03 am -
1 stop7h 39m
Sun 9/67:15 am -
2 stops14h 44m
Deal found 8/18![United Airlines logo]()
$464
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:06 am -
1 stop8h 04m
Fri 9/254:19 pm -
2 stops14h 49m
Deal found 8/18![United Airlines logo]()
$484
This American Airlines deal was found by Cheapflights users on 8/22. 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.
Thu 9/2410:47 am -
2 stops14h 01m
Fri 10/212:28 pm -
1 stop9h 19m
Deal found 8/22![American Airlines logo]()
$549
This American Airlines deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2410:47 am -
2 stops11h 56m
Tue 9/296:30 am -
2 stops13h 26m
Deal found 8/20![American Airlines logo]()
$558
This United Airlines deal was found by Cheapflights users on 8/22. 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.
Sat 9/266:00 am -
2 stops9h 14m
Sat 10/35:57 pm -
2 stops14h 05m
Deal found 8/22![United Airlines logo]()
$469
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/266:00 am -
2 stops11h 28m
Sat 10/34:19 pm -
2 stops14h 49m
Deal found 8/18![United Airlines logo]()
$479
This American Airlines deal was found by Cheapflights users on 8/22. 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.
Sat 9/266:30 am -
2 stops17h 40m
Sat 10/312:28 pm -
1 stop9h 19m
Deal found 8/22![American Airlines logo]()
$573
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:00 am -
1 stop7h 45m
Tue 10/611:38 am -
1 stop6h 44m
Deal found 8/18![United Airlines logo]()
$501
This American Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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 9/299:00 am -
1 stop8h 26m
Mon 10/51:15 pm -
1 stop8h 25m
Deal found 8/17![American Airlines logo]()
$547
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:00 am -
1 stop7h 45m
Mon 10/54:19 pm -
2 stops14h 49m
Deal found 8/18![United Airlines logo]()
$556
One-way flights from Portland to MontanaSearch for one-way flight options from Portland to Montana. Find affordable one-way fares based on user searches. Data last updated August 22, 2026.
Search for one-way flight options from Portland to Montana. Find affordable one-way fares based on user searches. Data last updated August 22, 2026.
This Delta deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:00 am -
1 stop9h 21m
Deal found 8/18![Delta logo]()
$185
This United Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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 10/36:00 am -
2 stops11h 28m
Deal found 8/17![United Airlines logo]()
$190
This Delta deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/36:00 am -
1 stop9h 38m
Deal found 8/20![Delta logo]()
$195
This deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/156:06 am -
1 stop8h 04m
Deal found 8/17![United Airlines logo]()
$235
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/166:06 am -
1 stop8h 04m
Deal found 8/18![United Airlines logo]()
$248
This Kiwi.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:00 am -
3 stops39h 52m
Deal found 8/18![Multiple Airlines logo]()
$262
This United Airlines deal was found by Cheapflights users on 8/22. 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.
Sat 9/196:00 am -
1 stop7h 40m
Deal found 8/22![United Airlines logo]()
$266
This Kiwi.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:00 am -
3 stops36h 54m
Deal found 8/18![Multiple Airlines logo]()
$272
This United Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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 9/135:15 am -
1 stop7h 27m
Deal found 8/17![United Airlines logo]()
$274
This Southwest deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/307:40 am -
1 stop6h 55m
Deal found 8/19![Southwest logo]()
$278
This Kiwi.com deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1712:03 pm -
3 stops30h 18m
Deal found 8/19![Multiple Airlines logo]()
$293
This American Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/29:52 am -
2 stops14h 55m
Deal found 8/19![American Airlines logo]()
$414
Find flight deals from Portland to Montana
Keep the following information in mind while searching for Portland to Montana flight deals. Data was last updated August 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $369 (American Airlines) |
One-way from | $185 (Delta) |
Popular in | June |
Cheapest in | November |
Average price | $493 |
Cheapflights Fare Finder
Customize your flight search to find flights from Portland 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 August 22, 2026.
Use the filters below to find and compare flights from Portland to Montana that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PortlandBozeman
PWM Portland - BZN Bozeman Gallatin Field
PWMBZN
Portland
Sat 1/23
6:00 am-1:16 pm
1 stop9h 16m
Bozeman Gallatin Field
Sat 1/30
6:00 am-10:23 pm
2 stops14h 23m
$374
PortlandBozeman
PWM Portland - BZN Bozeman Gallatin Field
PWMBZN
Portland
Fri 11/6
5:50 am-3:30 pm
2 stops11h 40m
Bozeman Gallatin Field
Wed 11/11
12:48 pm-11:21 pm
2 stops8h 33m
$421
PortlandGreat Falls
PWM Portland - GTF Great Falls
PWMGTF
Portland
Sat 10/31
3:23 pm-9:38 pm
1 stop8h 15m
Great Falls
Wed 11/4
6:30 am-4:02 pm
1 stop7h 32m
$448
PortlandGreat Falls
PWM Portland - GTF Great Falls
PWMGTF
Portland
Sat 10/31
3:23 pm-9:38 pm
1 stop8h 15m
Great Falls
Tue 11/3
6:30 am-4:02 pm
1 stop7h 32m
$448
PortlandGreat Falls
PWM Portland - GTF Great Falls
PWMGTF
Portland
Wed 10/28
8:47 am-9:38 pm
2 stops14h 51m
Great Falls
Wed 11/4
6:30 am-4:02 pm
1 stop7h 32m
$454
PortlandMissoula
PWM Portland - MSO Missoula Johnson-Bell Field
PWMMSO
Portland
Wed 9/2
6:03 am-11:42 am
1 stop7h 39m
Missoula Johnson-Bell Field
Sun 9/6
7:15 am-11:59 pm
2 stops14h 44m
$464
PortlandBillings
PWM Portland - BIL Billings Logan Intl
PWMBIL
Portland
Sat 10/24
11:35 am-10:53 pm
2 stops13h 18m
Billings Logan Intl
Wed 10/28
5:00 am-4:02 pm
1 stop9h 02m
$464
PortlandBozeman
PWM Portland - BZN Bozeman Gallatin Field
PWMBZN
Portland
Sat 10/31
3:23 pm-9:30 pm
1 stop8h 07m
Bozeman Gallatin Field
Tue 11/3
6:30 am-4:02 pm
1 stop7h 32m
$469
PortlandHelena
PWM Portland - HLN Helena
PWMHLN
Portland
Sat 10/31
3:23 pm-9:31 pm
1 stop8h 08m
Helena
Wed 11/4
6:28 am-4:02 pm
1 stop7h 34m
$489
PortlandMissoula
PWM Portland - MSO Missoula Johnson-Bell Field
PWMMSO
Portland
Fri 10/30
7:00 am-12:35 pm
1 stop7h 35m
Missoula Johnson-Bell Field
Sun 11/8
1:10 pm-11:59 am
1 stop20h 49m
$492
Showing 1-10 of 34 resultsSorted by cheapest first
Best time to book a flight from Portland to Montana
Have a flexible travel schedule? Discover the best time to fly to Montana from Portland with our price prediction graph.
PWM-MSO
PWM-BIL
PWM-BZN
PWM-GTF
PWM-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 Portland to Montana
PWM-USMT
PWM-MSO
PWM-BIL
PWM-BZN
PWM-GTF
What is the cheapest month to book a flight from Portland, Maine to Montana?
Currently, November is the cheapest month in which you can book a flight from Portland, Maine to Montana (average of $324). Flying from Portland, Maine to Montana in June is currently the most expensive (average of $809). 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 Portland, Maine to Montana?
Airfare is below average for this route at the moment.
Portland, Maine to Montana flights typically cost between $484 and $741 in October.The cheapest round-trip price found within the last 5 days was $369 on American Airlines (Oct 21-Oct 26).
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 August 22, 2026.
See what other customers who have flown with Delta,United Airlines, andAmerican Airlines from Portland to Montana have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Crew
8.5
Food
7.2
Overall
7.8
Reviews
1 / 20
10.0
ExcellentSalvador,Aug 2026
PHL - DTW
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Crew
8.5
Food
7.2
Overall
7.8
Reviews
1 / 20
10.0
ExcellentSalvador,Aug 2026
PHL - DTW
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Crew
8.5
Food
7.2
Overall
7.8
Reviews
1 / 20
10.0
ExcellentSalvador,Aug 2026
PHL - DTW
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Crew
8.5
Food
7.2
Overall
7.8
Reviews
1 / 20
10.0
ExcellentSalvador,Aug 2026
PHL - DTW
Related info for your journey
Find useful and relevant information for your journey from Portland 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 Portland to Montana
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Complete your trip
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Portland and Montana flights
Browse other Portland and Montana flight options. Last updated on August 22, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Portland to Montana flights
Consider these flights traveling from Portland to Montana.
Top 3 airlines flying from Portland to Montana
Discover the top 3 airlines that operate flights from Portland 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 August 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$249 | Average$314 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$308 | Average$526 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$358 | Average$686 | FlexibilityNo cancel fee | On-time71% |