$155+ Cheap flights from Portland, ME (PWM) 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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — BZN
Nov 11 — Nov 181
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Portland to Montana with Cheapflights
1. Tell us where you want to go
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Portland to Montana
Cheapest
Best
Last-minute
One-way
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 October 12, 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 October 12, 2026.
This Delta deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” 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
Sat 11/142:30 pm -
1 stop7h 01m
Deal found 10/8![Delta logo]()
$309
This United Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” 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 11/76:00 am -
2 stops11h 30m
Sat 11/1412:48 pm -
1 stop7h 00m
Deal found 10/8![United Airlines logo]()
$314
This Delta deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” 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 11/46:01 am -
1 stop9h 18m
Wed 11/112:30 pm -
1 stop7h 01m
Deal found 10/11![Delta logo]()
$385
This Delta deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” 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 11/112:30 pm -
1 stop7h 01m
Deal found 10/8![Delta logo]()
$386
This Southwest deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” 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 12/312:45 pm -
2 stops11h 45m
Tue 12/86:45 am -
2 stops13h 00m
Deal found 10/11![Southwest logo]()
$395
This United Airlines deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” 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 11/73:23 pm -
1 stop8h 24m
Sat 11/146:15 am -
1 stop7h 47m
Deal found 10/9![United Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” 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 11/93:23 pm -
1 stop8h 07m
Mon 11/164:13 pm -
2 stops14h 47m
Deal found 10/9![United Airlines logo]()
$421
This Southwest deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/25:15 am -
2 stops11h 35m
Mon 12/73:30 pm -
2 stops16h 20m
Deal found 10/11![Southwest logo]()
$423
This Southwest deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” 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 12/1012:45 pm -
2 stops11h 40m
Mon 12/215:05 pm -
2 stops14h 45m
Deal found 10/11![Southwest logo]()
$428
This United Airlines deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” 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 10/2710:50 am -
2 stops13h 01m
Mon 11/26:14 am -
1 stop7h 48m
Deal found 10/10![United Airlines logo]()
$444
This United Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” 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 12/59:51 am -
2 stops14h 00m
Sat 12/126:15 am -
2 stops11h 10m
Deal found 10/8![United Airlines logo]()
$462
This United Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” 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 10/236:00 am -
1 stop7h 32m
Tue 10/276:15 am -
1 stop7h 47m
Deal found 10/8![United Airlines logo]()
$479
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 October 12, 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 October 12, 2026.
This United Airlines deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” 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 1/76:00 am -
1 stop8h 13m
Tue 1/126:30 am -
2 stops12h 33m
Deal found 10/11![United Airlines logo]()
$390
This Southwest deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” 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 1/712:50 pm -
2 stops11h 10m
Tue 1/1211:30 am -
2 stops8h 10m
Deal found 10/11![Southwest logo]()
$395
This Delta deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” 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 1/311:15 pm -
1 stop8h 34m
Deal found 10/10![Delta logo]()
$429
This United Airlines deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” 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 11/76:00 am -
2 stops12h 26m
Sat 11/146:15 am -
2 stops13h 33m
Deal found 10/9![United Airlines logo]()
$432
This United Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” 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 12/59:51 am -
2 stops14h 00m
Sat 12/126:15 am -
2 stops11h 10m
Deal found 10/8![United Airlines logo]()
$462
This Delta deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” 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 1/46:00 am -
2 stops13h 27m
Thu 1/148:00 am -
2 stops13h 06m
Deal found 10/9![Delta logo]()
$539
This United Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” 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 10/236:00 am -
1 stop7h 32m
Tue 10/276:15 am -
1 stop7h 47m
Deal found 10/8![United Airlines logo]()
$479
This Southwest deal was found by Cheapflights users on 10/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2711:35 am -
2 stops12h 35m
Sat 10/318:10 am -
2 stops8h 35m
Deal found 10/12![Southwest logo]()
$585
This Delta deal was found by Cheapflights users on 10/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/256:30 am -
2 stops12h 57m
Sun 3/78:00 am -
2 stops13h 06m
Deal found 10/12![Delta logo]()
$569
This United Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” 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 10/315:30 am -
2 stops12h 00m
Tue 11/310:40 am -
2 stops10h 41m
Deal found 10/8![United Airlines logo]()
$489
This United Airlines deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” 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 10/312:05 pm -
2 stops10h 25m
Wed 11/47:00 am -
1 stop7h 02m
Deal found 10/10![United Airlines logo]()
$504
This Delta deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” 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 12/26:00 am -
1 stop9h 25m
Mon 12/72:41 pm -
1 stop7h 11m
Deal found 10/11![Delta logo]()
$661
This United Airlines deal was found by Cheapflights users on 10/12. 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.
Sat 1/236:00 am -
1 stop9h 06m
Sat 1/302:13 pm -
1 stop7h 19m
Deal found 10/12![United Airlines logo]()
$505
This Delta deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” 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 10/226:01 am -
2 stops13h 50m
Mon 10/262:29 pm -
1 stop7h 06m
Deal found 10/9![Delta logo]()
$662
This United Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” 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 11/15:50 am -
2 stops11h 40m
Wed 11/412:48 pm -
1 stop7h 03m
Deal found 10/8![United Airlines logo]()
$508
This United Airlines deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” 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 10/3110:50 am -
2 stops12h 57m
Wed 11/46:15 am -
1 stop7h 47m
Deal found 10/9![United Airlines logo]()
$534
This United Airlines deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” 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 stop9h 07m
Tue 11/35:00 am -
1 stop9h 02m
Deal found 10/11![United Airlines logo]()
$534
This United Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” 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 10/298:49 am -
2 stops15h 02m
Wed 11/116:14 am -
1 stop7h 48m
Deal found 10/8![United Airlines logo]()
$534
This United Airlines deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” 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 11/18:47 am -
2 stops14h 43m
Sun 11/86:30 am -
1 stop7h 32m
Deal found 10/7![United Airlines logo]()
$569
This United Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” 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 12/39:51 am -
2 stops14h 00m
Thu 12/106:15 am -
2 stops12h 27m
Deal found 10/8![United Airlines logo]()
$641
This United Airlines deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” 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 10/253:23 pm -
1 stop8h 28m
Thu 10/296:14 am -
2 stops13h 37m
Deal found 10/10![United Airlines logo]()
$714
Last-minute flights from Portland to MontanaDiscover last-minute flight deals from Portland to Montana. Data last updated October 12, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Montana. Data last updated October 12, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” 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 10/236:00 am -
1 stop7h 32m
Tue 10/276:15 am -
1 stop7h 47m
Deal found 10/8![United Airlines logo]()
$479
This Delta deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” 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 10/2311:55 am -
1 stop9h 59m
Tue 10/278:33 am -
2 stops12h 45m
Deal found 10/8![Delta logo]()
$484
This United Airlines deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” 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 10/243:45 pm -
1 stop7h 47m
Thu 10/296:15 am -
1 stop7h 47m
Deal found 10/10![United Airlines logo]()
$487
This United Airlines deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” 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 10/2710:50 am -
2 stops13h 01m
Mon 11/26:14 am -
1 stop7h 48m
Deal found 10/10![United Airlines logo]()
$444
This Delta deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” 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 11/46:01 am -
1 stop9h 18m
Wed 11/112:30 pm -
1 stop7h 01m
Deal found 10/11![Delta logo]()
$385
This United Airlines deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” 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 11/48:49 am -
2 stops14h 41m
Wed 11/1112:48 pm -
2 stops8h 33m
Deal found 10/11![United Airlines logo]()
$448
This Delta deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” 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 11/112:30 pm -
1 stop7h 01m
Deal found 10/8![Delta logo]()
$386
This Delta deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” 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
Sat 11/142:30 pm -
1 stop7h 01m
Deal found 10/8![Delta logo]()
$309
This United Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” 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 11/76:00 am -
2 stops11h 30m
Sat 11/1412:48 pm -
1 stop7h 00m
Deal found 10/8![United Airlines logo]()
$314
This United Airlines deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” 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 11/73:23 pm -
1 stop8h 24m
Sat 11/146:15 am -
1 stop7h 47m
Deal found 10/9![United Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” 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 11/93:23 pm -
1 stop8h 07m
Mon 11/164:13 pm -
2 stops14h 47m
Deal found 10/9![United Airlines logo]()
$421
This Southwest deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/95:20 am -
2 stops12h 05m
Mon 11/163:30 pm -
2 stops16h 20m
Deal found 10/9![Southwest logo]()
$440
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 October 12, 2026.
Search for one-way flight options from Portland to Montana. Find affordable one-way fares based on user searches. Data last updated October 12, 2026.
This Delta deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” 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 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Delta logo]()
$155
This American Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” 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 11/186:47 pm -
3 stops20h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![American Airlines logo]()
$270
This Delta deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” 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 10/176:01 am -
1 stop9h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Delta logo]()
$288
This Southwest deal was found by Cheapflights users on 10/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/241:25 pm -
2 stops14h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Southwest logo]()
$339
This Southwest deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” 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 10/2011:35 am -
2 stops12h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Southwest logo]()
$341
This United Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” 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 10/206:00 am -
1 stop7h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![United Airlines logo]()
$348
This United Airlines deal was found by Cheapflights users on 10/12. 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 11/243:23 pm -
1 stop8h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![United Airlines logo]()
$376
This Kiwi.com deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” 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.
Mon 12/215:35 pm -
3 stops42h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![Multiple Airlines logo]()
$522
This American Airlines deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” 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.
Mon 12/215:30 am -
2 stops33h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![American Airlines logo]()
$688
This American Airlines deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” 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 12/223:06 pm -
2 stops23h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![American Airlines logo]()
$700
This United Airlines deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” 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 12/231:45 pm -
2 stops25h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![United Airlines logo]()
$745
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 October 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $309 (Delta) |
One-way from | $155 (Delta) |
Popular in | June |
Cheapest in | November |
Average price | $543 |
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 October 12, 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
Wed 11/18
6:00 am-1:20 pm
1 stop9h 20m
Bozeman Gallatin Field
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$155
Quickest round-trip
PortlandBozeman
PWM Portland - BZN Bozeman Gallatin Field
PWMBZN
Portland
Sat 10/17
6:01 am-1:19 pm
1 stop9h 18m
Bozeman Gallatin Field
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$288
PortlandBozeman
PWM Portland - BZN Bozeman Gallatin Field
PWMBZN
Portland
Tue 11/24
1:25 pm-1:55 am
2 stops14h 30m
Bozeman Gallatin Field
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$339
PortlandBozeman
PWM Portland - BZN Bozeman Gallatin Field
PWMBZN
Portland
Wed 10/21
8:03 am-9:04 pm
2 stops15h 01m
Bozeman Gallatin Field
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$353
PortlandBozeman
PWM Portland - BZN Bozeman Gallatin Field
PWMBZN
Portland
Thu 1/7
6:00 am-12:13 pm
1 stop8h 13m
Bozeman Gallatin Field
Tue 1/12
6:30 am-9:03 pm
2 stops12h 33m
$390
PortlandBozeman
PWM Portland - BZN Bozeman Gallatin Field
PWMBZN
Portland
Thu 1/7
12:50 pm-10:00 pm
2 stops11h 10m
Bozeman Gallatin Field
Tue 1/12
11:30 am-9:40 pm
2 stops8h 10m
$395
PortlandBozeman
PWM Portland - BZN Bozeman Gallatin Field
PWMBZN
Portland
Sat 1/23
2:35 pm-11:58 pm
2 stops11h 23m
Bozeman Gallatin Field
Sun 1/31
1:15 pm-11:49 pm
1 stop8h 34m
$429
PortlandMissoula
PWM Portland - MSO Missoula Johnson-Bell Field
PWMMSO
Portland
Sat 11/7
6:00 am-4:26 pm
2 stops12h 26m
Missoula Johnson-Bell Field
Sat 11/14
6:15 am-9:48 pm
2 stops13h 33m
$432
PortlandKalispell
PWM Portland - FCA Kalispell Glacier Park
PWMFCA
Portland
Sat 12/5
9:51 am-9:51 pm
2 stops14h 00m
Kalispell Glacier Park
Sat 12/12
6:15 am-7:25 pm
2 stops11h 10m
$462
PortlandMissoula
PWM Portland - MSO Missoula Johnson-Bell Field
PWMMSO
Portland
Fri 10/23
6:00 am-11:32 am
1 stop7h 32m
Missoula Johnson-Bell Field
Tue 10/27
6:15 am-4:02 pm
1 stop7h 47m
$479
Showing 1-10 of 28 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-FCA
PWM-BIL
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-FCA
PWM-BIL
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 $378). 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 $483 and $708 in November.The cheapest round-trip price found within the last 5 days was $309 on Delta (Nov 7-Nov 14).
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 October 12, 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.
Overall
7.8
Entertainment
7.8
Food
7.2
Comfort
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Overall
7.8
Entertainment
7.8
Food
7.2
Comfort
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Overall
7.8
Entertainment
7.8
Food
7.2
Comfort
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Overall
7.8
Entertainment
7.8
Food
7.2
Comfort
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top destinations
Alternative routes for Portland to Montana
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Montana by adding a car rental and/or hotel reservation to your travel itinerary.
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 October 12, 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 October 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$249 | Average$378 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$309 | Average$542 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$358 | Average$686 | FlexibilityNo cancel fee | On-time71% |