$155+ 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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — BZN
Jun 17 — Jun 241
Round-trip
1 adult, Economy
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Find cheap flights from Portland to Montana with Cheapflights
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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 May 18, 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 May 18, 2026.
This Delta deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” 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 6/136:14 am
PWM
- BZN
2 stops13h 06m
Delta
Sat 6/202:25 pm
BZN
- PWM
1 stop8h 27m
Delta
Deal found 5/15![Delta logo]()
$314
This American Airlines deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” 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 8/2610:00 am
PWM
- BZN
2 stops12h 37m
American Airlines
Tue 9/111:55 am
BZN
- PWM
2 stops9h 56m
American Airlines
Deal found 5/15![American Airlines logo]()
$319
This American Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” 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
PWM
- BZN
1 stop9h 25m
American Airlines
Tue 9/16:26 am
BZN
- PWM
2 stops13h 34m
American Airlines
Deal found 5/13![American Airlines logo]()
$339
This Delta deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:05 am
PWM
- BZN
2 stops11h 04m
Delta
Tue 8/256:00 am
BZN
- PWM
2 stops15h 20m
Delta
Deal found 5/13![Delta logo]()
$366
This American Airlines deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” 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 9/2612:39 pm
PWM
- MSO
2 stops12h 24m
American Airlines
Wed 9/301:29 pm
MSO
- PWM
1 stop8h 44m
American Airlines
Deal found 5/14![American Airlines logo]()
$374
This American Airlines deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” 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 8/186:00 am
PWM
- BZN
2 stops11h 25m
American Airlines
Tue 8/256:26 am
BZN
- PWM
1 stop10h 27m
American Airlines
Deal found 5/16![American Airlines logo]()
$375
This Delta deal was found by Cheapflights users on 5/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1712:50 pm
PWM
- BIL
2 stops11h 42m
Delta
Thu 11/266:15 am
BIL
- PWM
2 stops14h 08m
Delta
Deal found 5/17![Delta logo]()
$414
This United Airlines deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” 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 11/173:35 pm
PWM
- BIL
1 stop7h 16m
United Airlines
Thu 11/267:00 am
BIL
- PWM
1 stop6h 49m
United Airlines
Deal found 5/14![United Airlines logo]()
$444
This United Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” 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 5/283:31 pm
PWM
- MSO
1 stop8h 03m
United Airlines
Mon 6/112:33 pm
MSO
- PWM
1 stop7h 18m
United Airlines
Deal found 5/13![United Airlines logo]()
$449
This United Airlines deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” 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 10/283:35 pm
PWM
- BIL
1 stop7h 16m
United Airlines
Sat 10/315:00 am
BIL
- PWM
2 stops9h 09m
United Airlines
Deal found 5/14![United Airlines logo]()
$454
This Delta deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” 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 5/296:00 am
PWM
- MSO
2 stops10h 40m
Delta
Tue 6/25:30 am
MSO
- PWM
2 stops15h 39m
Delta
Deal found 5/13![Delta logo]()
$459
This American Airlines deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/207:13 am
PWM
- MSO
1 stop7h 17m
American Airlines
Sat 9/261:29 pm
MSO
- PWM
1 stop8h 44m
American Airlines
Deal found 5/15![American Airlines logo]()
$475
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 May 18, 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 May 18, 2026.
This Delta deal was found by Cheapflights users on 5/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/136:14 am
PWM
- BZN
1 stop9h 06m
Delta
Sat 6/2011:27 am
BZN
- PWM
2 stops11h 25m
Delta
Deal found 5/17![Delta logo]()
$339
This United Airlines deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:00 am
PWM
- BZN
2 stops11h 23m
United Airlines
Tue 10/63:40 pm
BZN
- PWM
2 stops15h 43m
United Airlines
Deal found 5/12![United Airlines logo]()
$419
This American Airlines deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/299:01 am
PWM
- BZN
2 stops13h 38m
American Airlines
Tue 10/61:52 pm
BZN
- PWM
1 stop6h 13m
American Airlines
Deal found 5/12![American Airlines logo]()
$443
This Delta deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:05 am
PWM
- BZN
2 stops11h 04m
Delta
Tue 8/256:00 am
BZN
- PWM
2 stops15h 20m
Delta
Deal found 5/14![Delta logo]()
$344
This Delta deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/264:47 pm
PWM
- BZN
2 stops8h 29m
Delta
Wed 9/211:27 am
BZN
- PWM
2 stops9h 06m
Delta
Deal found 5/13![Delta logo]()
$366
This Alaska Airlines deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” 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 7/111:02 am
PWM
- MSO
2 stops14h 54m
Alaska Airlines
Fri 7/107:59 pm
MSO
- PWM
2 stops12h 32m
Alaska Airlines
Deal found 5/14![Alaska Airlines logo]()
$840
This United Airlines deal was found by Cheapflights users on 5/17. 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 10/283:35 pm
PWM
- BIL
1 stop7h 16m
United Airlines
Sat 10/317:00 am
BIL
- PWM
2 stops13h 57m
United Airlines
Deal found 5/17![United Airlines logo]()
$454
This Delta deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” 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 6/12:05 pm
PWM
- BZN
2 stops11h 54m
Delta
Tue 6/3012:13 pm
BZN
- PWM
2 stops10h 39m
Delta
Deal found 5/16![Delta logo]()
$424
This United Airlines deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” 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 10/313:35 pm
PWM
- MSO
1 stop7h 51m
United Airlines
Tue 11/36:15 am
MSO
- PWM
1 stop7h 34m
United Airlines
Deal found 5/14![United Airlines logo]()
$519
This Delta deal was found by Cheapflights users on 5/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:05 am
PWM
- BZN
2 stops11h 04m
Delta
Sat 8/226:07 am
BZN
- PWM
2 stops13h 24m
Delta
Deal found 5/17![Delta logo]()
$444
This United Airlines deal was found by Cheapflights users on 5/17. 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 10/286:00 am
PWM
- HLN
2 stops33h 27m
United Airlines
Sat 10/317:00 am
HLN
- PWM
1 stop6h 49m
United Airlines
Deal found 5/17![United Airlines logo]()
$592
This United Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” 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 5/285:15 am
PWM
- MSO
3 stops13h 05m
United Airlines
Mon 6/112:33 pm
MSO
- PWM
2 stops9h 18m
United Airlines
Deal found 5/13![United Airlines logo]()
$666
This Delta deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” 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 9/204:50 pm
PWM
- MSO
2 stops8h 57m
Delta
Sat 9/265:45 am
MSO
- PWM
2 stops14h 48m
Delta
Deal found 5/15![Delta logo]()
$699
This United Airlines deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” 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 7/16:00 am
PWM
- MSO
1 stop7h 32m
United Airlines
Fri 7/107:30 am
MSO
- PWM
2 stops14h 21m
United Airlines
Deal found 5/14![United Airlines logo]()
$749
This United Airlines deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” 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 9/63:37 pm
PWM
- GTF
1 stop7h 35m
United Airlines
Sat 9/122:31 pm
GTF
- PWM
2 stops26h 48m
United Airlines
Deal found 5/14![United Airlines logo]()
$753
This United Airlines deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/95:00 pm
PWM
- HLN
2 stops30h 20m
United Airlines
Tue 7/146:15 am
HLN
- PWM
2 stops24h 56m
United Airlines
Deal found 5/16![United Airlines logo]()
$777
This United Airlines deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” 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 6/136:00 am
PWM
- MSO
1 stop7h 32m
United Airlines
Sat 6/2012:33 pm
MSO
- PWM
1 stop7h 18m
United Airlines
Deal found 5/14![United Airlines logo]()
$791
This Delta deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/912:40 pm
PWM
- HLN
2 stops11h 59m
Delta
Tue 7/145:40 am
HLN
- PWM
2 stops10h 12m
Delta
Deal found 5/15![Delta logo]()
$958
This United Airlines deal was found by Cheapflights users on 5/17. 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 5/295:15 am
PWM
- MSO
3 stops13h 05m
United Airlines
Tue 6/22:26 pm
MSO
- PWM
2 stops16h 48m
United Airlines
Deal found 5/17![United Airlines logo]()
$808
This United Airlines deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/96:00 am
PWM
- GTF
1 stop7h 46m
United Airlines
Tue 7/1412:30 pm
GTF
- PWM
2 stops9h 21m
United Airlines
Deal found 5/16![United Airlines logo]()
$823
This United Airlines deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/107:16 pm
PWM
- MSO
2 stops28h 24m
United Airlines
Mon 7/206:05 am
MSO
- PWM
2 stops25h 06m
United Airlines
Deal found 5/14![United Airlines logo]()
$872
This Delta deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/106:00 am
PWM
- GTF
2 stops13h 42m
Delta
Tue 7/145:40 am
GTF
- PWM
2 stops15h 34m
Delta
Deal found 5/16![Delta logo]()
$1,325
This United Airlines deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/95:00 pm
PWM
- HLN
2 stops30h 20m
United Airlines
Mon 7/132:20 pm
HLN
- PWM
2 stops29h 21m
United Airlines
Deal found 5/14![United Airlines logo]()
$880
This United Airlines deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/186:00 am
PWM
- MSO
1 stop7h 32m
United Airlines
Tue 8/42:25 pm
MSO
- PWM
2 stops16h 46m
United Airlines
Deal found 5/14![United Airlines logo]()
$900
This United Airlines deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/103:37 pm
PWM
- HLN
1 stop7h 43m
United Airlines
Tue 7/146:15 am
HLN
- PWM
2 stops13h 26m
United Airlines
Deal found 5/16![United Airlines logo]()
$954
This United Airlines deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/103:37 pm
PWM
- GTF
1 stop7h 57m
United Airlines
Tue 7/146:15 am
GTF
- PWM
1 stop7h 34m
United Airlines
Deal found 5/16![United Airlines logo]()
$1,114
Last-minute flights from Portland to MontanaDiscover last-minute flight deals from Portland to Montana. Data last updated May 18, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Montana. Data last updated May 18, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/1611:34 am
PWM
- BIL
2 stops11h 23m
United Airlines
Fri 5/225:00 am
BIL
- PWM
1 stop8h 49m
United Airlines
Deal found 5/14![United Airlines logo]()
$617
This American Airlines deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” 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 5/285:42 am
PWM
- BZN
2 stops12h 20m
American Airlines
Mon 6/11:22 pm
BZN
- PWM
1 stop9h 13m
American Airlines
Deal found 5/14![American Airlines logo]()
$424
This United Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” 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 5/283:31 pm
PWM
- MSO
1 stop8h 03m
United Airlines
Mon 6/112:33 pm
MSO
- PWM
1 stop7h 18m
United Airlines
Deal found 5/13![United Airlines logo]()
$449
This Delta deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” 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 5/296:00 am
PWM
- MSO
2 stops10h 40m
Delta
Tue 6/25:30 am
MSO
- PWM
2 stops15h 39m
Delta
Deal found 5/13![Delta logo]()
$459
This American Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:00 am
PWM
- MSO
1 stop8h 49m
American Airlines
Tue 6/21:25 pm
MSO
- PWM
1 stop9h 10m
American Airlines
Deal found 5/13![American Airlines logo]()
$499
This United Airlines deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” 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 5/296:00 am
PWM
- MSO
1 stop7h 32m
United Airlines
Tue 6/212:33 pm
MSO
- PWM
1 stop7h 18m
United Airlines
Deal found 5/14![United Airlines logo]()
$559
This United Airlines deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/303:32 pm
PWM
- HLN
1 stop7h 48m
United Airlines
Wed 6/36:15 am
HLN
- PWM
1 stop7h 34m
United Airlines
Deal found 5/15![United Airlines logo]()
$1,574
This Alaska Airlines deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” 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 5/305:00 am
PWM
- HLN
2 stops13h 06m
Alaska Airlines
Wed 6/34:43 pm
HLN
- PWM
2 stops15h 54m
Alaska Airlines
Deal found 5/15![Alaska Airlines logo]()
$1,738
This American Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” 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 6/67:58 am
PWM
- BZN
2 stops14h 45m
American Airlines
Fri 6/121:22 pm
BZN
- PWM
1 stop9h 20m
American Airlines
Deal found 5/13![American Airlines logo]()
$443
This Delta deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” 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 6/136:14 am
PWM
- BZN
2 stops13h 06m
Delta
Sat 6/202:25 pm
BZN
- PWM
1 stop8h 27m
Delta
Deal found 5/15![Delta logo]()
$314
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 May 18, 2026.
Search for one-way flight options from Portland to Montana. Find affordable one-way fares based on user searches. Data last updated May 18, 2026.
This American Airlines deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” 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 9/157:13 am
PWM
- BZN
1 stop8h 48m
American Airlines
Deal found 5/16![American Airlines logo]()
$155
This Delta deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” 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 6/912:40 pm
PWM
- BZN
2 stops13h 18m
Delta
Deal found 5/16![Delta logo]()
$160
This United Airlines deal was found by Cheapflights users on 5/17. 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 5/315:15 am
PWM
- BZN
1 stop7h 34m
United Airlines
Deal found 5/17![United Airlines logo]()
$180
This United Airlines deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” 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 9/96:00 am
PWM
- BZN
1 stop8h 10m
United Airlines
Deal found 5/15![United Airlines logo]()
$222
This American Airlines deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/157:27 am
PWM
- BZN
2 stops15h 10m
American Airlines
Deal found 5/15![American Airlines logo]()
$241
This United Airlines deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” 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 6/96:00 am
PWM
- BZN
1 stop7h 44m
United Airlines
Deal found 5/16![United Airlines logo]()
$258
This United Airlines deal was found by Cheapflights users on 5/17. 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 6/123:31 pm
PWM
- MSO
1 stop8h 03m
United Airlines
Deal found 5/17![United Airlines logo]()
$326
This Kiwi.com deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/94:44 pm
PWM
- BZN
3 stops49h 13m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$331
This American Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” 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 7/1810:01 am
PWM
- BZN
2 stops13h 14m
American Airlines
Deal found 5/13![American Airlines logo]()
$359
This Kiwi.com deal was found by Cheapflights users on 5/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/126:13 pm
PWM
- MSO
3 stops41h 22m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$408
This United Airlines deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/186:00 am
PWM
- GTF
1 stop7h 46m
United Airlines
Deal found 5/14![United Airlines logo]()
$493
This Delta deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” 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 8/314:50 pm
PWM
- BIL
2 stops7h 47m
Delta
Deal found 5/13![Delta logo]()
$575
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 May 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $314 (Delta) |
One-way from | $155 (American Airlines) |
Popular in | June |
Cheapest in | November |
Average price | $479 |
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 2,558,603 searches. Data last updated May 18, 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 - BZN
PWMBZN
Portland
Sat 6/13
6:14 am-1:20 pm
1 stop9h 06m
Bozeman Gallatin Field
Sat 6/20
11:27 am-12:52 am
2 stops11h 25m
$339
PortlandBozeman
PWM - BZN
PWMBZN
Portland
Tue 8/18
6:05 am-3:09 pm
2 stops11h 04m
Bozeman Gallatin Field
Tue 8/25
6:00 am-11:20 pm
2 stops15h 20m
$344
PortlandBozeman
PWM - BZN
PWMBZN
Portland
Wed 8/26
4:47 pm-11:16 pm
2 stops8h 29m
Bozeman Gallatin Field
Wed 9/2
11:27 am-10:33 pm
2 stops9h 06m
$366
PortlandBozeman
PWM - BZN
PWMBZN
Portland
Tue 9/29
6:00 am-3:23 pm
2 stops11h 23m
Bozeman Gallatin Field
Tue 10/6
3:40 pm-9:23 am
2 stops15h 43m
$419
PortlandBozeman
PWM - BZN
PWMBZN
Portland
Mon 6/1
2:05 pm-11:59 pm
2 stops11h 54m
Bozeman Gallatin Field
Tue 6/30
12:13 pm-12:52 am
2 stops10h 39m
$424
PortlandBozeman
PWM - BZN
PWMBZN
Portland
Tue 9/29
9:01 am-8:39 pm
2 stops13h 38m
Bozeman Gallatin Field
Tue 10/6
1:52 pm-10:05 pm
1 stop6h 13m
$443
PortlandBozeman
PWM - BZN
PWMBZN
Portland
Tue 8/18
6:05 am-3:09 pm
2 stops11h 04m
Bozeman Gallatin Field
Sat 8/22
6:07 am-9:31 pm
2 stops13h 24m
$444
PortlandBillings
PWM - BIL
PWMBIL
Portland
Wed 10/28
3:35 pm-8:51 pm
1 stop7h 16m
Billings Logan Intl
Sat 10/31
7:00 am-10:57 pm
2 stops13h 57m
$454
PortlandMissoula
PWM - MSO
PWMMSO
Portland
Sat 10/31
3:35 pm-9:26 pm
1 stop7h 51m
Missoula Johnson-Bell Field
Tue 11/3
6:15 am-3:49 pm
1 stop7h 34m
$519
PortlandHelena
PWM - HLN
PWMHLN
Portland
Wed 10/28
6:00 am-1:27 pm
2 stops33h 27m
Helena
Sat 10/31
7:00 am-3:49 pm
1 stop6h 49m
$592
Showing 1-10 of 38 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-BZN
PWM-MSO
PWM-GTF
PWM-BIL
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-BZN
PWM-MSO
PWM-GTF
PWM-BIL
How far ahead should I book a flight from Portland, Maine to Montana?
Booking 43 days in advance of your planned departure date is, on average, the best time to get cheap flights from Portland, Maine to Montana. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Portland, Maine to Montana?
Currently, January is the cheapest month in which you can book a flight from Portland, Maine to Montana (average of $203). Flying from Portland, Maine to Montana in July is currently the most expensive (average of $400). 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?
Reviews of airlines servicing Montana
Get insights into the airlines that provide service to Montana. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Montana. Reviews last updated May 18, 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.
Crew
8.5
Overall
7.9
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Overall
7.9
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Overall
7.9
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Overall
7.9
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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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Search flights from Portland to Montana by cabin class
Find flights from Portland to Montana, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Portland and Montana flights
Browse other Portland and Montana flight options. Last updated on May 18, 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 2,558,603 searches. Data last updated May 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$203 | Average$381 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$308 | Average$569 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$311 | Average$595 | FlexibilityNo cancel fee | On-time71% |