$119+ Cheap flights from Portland (PDX) 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 9/26. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BZN
Sep 10 — Sep 171
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 August 11, 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 11, 2026.
This Alaska Airlines deal was found by Cheapflights users on 8/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1610:33 am -
Nonstop1h 51m
Wed 9/233:42 pm -
Nonstop1h 52m
Deal found 8/9![Alaska Airlines logo]()
$227
This Priceline deal was found by Cheapflights users on 8/7. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/610:31 am -
Nonstop1h 39m
Wed 11/113:54 pm -
Nonstop1h 56m
Deal found 8/7![Alaska Airlines logo]()
$232
This Delta deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” 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 9/235:50 pm -
1 stop3h 59m
Tue 9/293:38 pm -
1 stop5h 24m
Deal found 8/6![Delta logo]()
$237
This Southwest deal was found by Cheapflights users on 8/11. 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.
Fri 9/258:00 am -
1 stop5h 50m
Tue 9/296:55 am -
2 stops9h 30m
Deal found 8/11![Southwest logo]()
$241
This Delta deal was found by Cheapflights users on 8/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/129:51 am -
1 stop4h 02m
Mon 9/218:25 am -
1 stop4h 21m
Deal found 8/7![Delta logo]()
$242
This Alaska Airlines deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3112:14 pm -
Nonstop1h 50m
Wed 11/43:32 pm -
Nonstop2h 12m
Deal found 8/6![Alaska Airlines logo]()
$247
This Delta deal was found by Cheapflights users on 8/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/295:49 pm -
1 stop3h 48m
Sun 11/13:38 pm -
1 stop5h 22m
Deal found 8/7![Delta logo]()
$247
This Southwest deal was found by Cheapflights users on 8/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/304:00 pm -
1 stop5h 30m
Thu 10/16:15 pm -
1 stop7h 15m
Deal found 8/10![Southwest logo]()
$249
This Priceline deal was found by Cheapflights users on 8/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3112:14 pm -
Nonstop1h 50m
Thu 11/53:32 pm -
Nonstop2h 12m
Deal found 8/10![Alaska Airlines logo]()
$252
This Southwest deal was found by Cheapflights users on 8/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/154:00 pm -
1 stop5h 30m
Tue 9/226:55 am -
2 stops8h 10m
Deal found 8/10![Southwest logo]()
$252
This Alaska Airlines deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” 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 11/710:48 am -
Nonstop1h 27m
Wed 11/1112:55 pm -
Nonstop1h 37m
Deal found 8/6![Alaska Airlines logo]()
$257
This United Airlines deal was found by Cheapflights users on 8/11. 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 10/155:00 am -
1 stop7h 31m
Sat 10/174:22 pm -
1 stop5h 38m
Deal found 8/11![United Airlines logo]()
$260
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 11, 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 11, 2026.
This United Airlines deal was found by Cheapflights users on 8/7. 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.
Sat 9/128:40 am -
1 stop5h 50m
Wed 9/234:32 pm -
1 stop5h 35m
Deal found 8/7![United Airlines logo]()
$237
This Delta deal was found by Cheapflights users on 8/8. 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 9/129:51 am -
1 stop4h 02m
Mon 9/218:25 am -
1 stop4h 21m
Deal found 8/8![Delta logo]()
$242
This Alaska Airlines deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” 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 11/710:48 am -
Nonstop1h 27m
Wed 11/1112:55 pm -
Nonstop1h 37m
Deal found 8/6![Alaska Airlines logo]()
$257
This Southwest deal was found by Cheapflights users on 8/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/154:00 pm -
1 stop5h 30m
Tue 9/226:55 am -
1 stop11h 55m
Deal found 8/10![Southwest logo]()
$301
This Delta deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” 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 9/165:40 am -
1 stop5h 57m
Tue 9/225:30 am -
1 stop4h 11m
Deal found 8/6![Delta logo]()
$267
This Alaska Airlines deal was found by Cheapflights users on 8/7. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1010:30 am -
Nonstop1h 39m
Tue 1/54:00 pm -
Nonstop1h 50m
Deal found 8/7![Alaska Airlines logo]()
$288
This Delta deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” 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 9/185:10 pm -
1 stop6h 08m
Sun 9/205:30 am -
1 stop4h 11m
Deal found 8/6![Delta logo]()
$277
This Southwest deal was found by Cheapflights users on 8/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2412:20 pm -
1 stop10h 25m
Tue 9/296:55 am -
2 stops9h 30m
Deal found 8/10![Southwest logo]()
$305
This United Airlines deal was found by Cheapflights users on 8/10. 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.
Wed 10/217:00 am -
1 stop7h 14m
Sat 10/244:22 pm -
1 stop7h 35m
Deal found 8/10![United Airlines logo]()
$317
This Alaska Airlines deal was found by Cheapflights users on 8/7. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2311:48 am -
1 stop6h 01m
Thu 9/243:42 pm -
Nonstop2h 02m
Deal found 8/7![Alaska Airlines logo]()
$292
This Southwest deal was found by Cheapflights users on 8/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/121:30 pm -
1 stop5h 40m
Wed 9/236:55 am -
2 stops8h 10m
Deal found 8/7![Southwest logo]()
$312
This United Airlines deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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 10/314:25 pm -
1 stop5h 05m
Wed 11/47:00 am -
2 stops8h 37m
Deal found 8/5![United Airlines logo]()
$342
This Southwest deal was found by Cheapflights users on 8/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/192:05 pm -
1 stop6h 15m
Tue 9/226:55 am -
1 stop11h 55m
Deal found 8/10![Southwest logo]()
$312
This Alaska Airlines deal was found by Cheapflights users on 8/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/245:38 pm -
1 stop26h 07m
Tue 9/293:42 pm -
Nonstop1h 52m
Deal found 8/10![Alaska Airlines logo]()
$314
This Delta deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” 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 9/239:46 am -
1 stop6h 12m
Sat 9/266:10 pm -
1 stop5h 23m
Deal found 8/6![Delta logo]()
$342
This Alaska Airlines deal was found by Cheapflights users on 8/7. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/610:31 am -
Nonstop1h 39m
Wed 11/117:00 am -
1 stop15h 55m
Deal found 8/7![Alaska Airlines logo]()
$320
This Delta deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” 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 9/239:46 am -
1 stop6h 12m
Sun 9/276:10 pm -
1 stop6h 30m
Deal found 8/6![Delta logo]()
$347
This United Airlines deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” 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 8/295:30 am -
2 stops10h 43m
Tue 9/15:00 am -
1 stop5h 32m
Deal found 8/6![United Airlines logo]()
$394
This Alaska Airlines deal was found by Cheapflights users on 8/8. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/248:09 am -
1 stop3h 14m
Mon 10/261:03 pm -
Nonstop1h 39m
Deal found 8/8![Alaska Airlines logo]()
$333
This Delta deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” 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 9/239:46 am -
1 stop6h 12m
Mon 9/286:10 pm -
1 stop6h 30m
Deal found 8/6![Delta logo]()
$347
This United Airlines deal was found by Cheapflights users on 8/7. 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.
Thu 9/104:07 pm -
1 stop5h 44m
Sat 9/127:00 am -
2 stops8h 41m
Deal found 8/7![United Airlines logo]()
$397
This Alaska Airlines deal was found by Cheapflights users on 8/7. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/113:00 pm -
1 stop19h 40m
Mon 9/143:42 pm -
Nonstop2h 02m
Deal found 8/7![Alaska Airlines logo]()
$345
This Delta deal was found by Cheapflights users on 8/10. 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.
Thu 9/35:08 pm -
1 stop4h 17m
Mon 9/75:20 am -
1 stop4h 17m
Deal found 8/10![Delta logo]()
$357
This United Airlines deal was found by Cheapflights users on 8/7. 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.
Wed 8/2612:45 pm -
1 stop9h 00m
Sat 8/295:00 am -
1 stop5h 32m
Deal found 8/7![United Airlines logo]()
$403
This Alaska Airlines deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” 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.
Mon 9/75:41 pm -
1 stop4h 20m
Thu 9/104:16 pm -
1 stop6h 45m
Deal found 8/6![Alaska Airlines logo]()
$352
This Delta deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” 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 9/39:45 am -
1 stop6h 11m
Thu 9/106:10 pm -
1 stop5h 25m
Deal found 8/6![Delta logo]()
$372
This United Airlines deal was found by Cheapflights users on 8/8. 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 9/312:45 pm -
1 stop9h 00m
Sat 9/125:00 am -
1 stop5h 32m
Deal found 8/8![United Airlines logo]()
$433
This Alaska Airlines deal was found by Cheapflights users on 8/8. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/610:48 am -
Nonstop1h 38m
Sat 10/101:06 pm -
Nonstop1h 36m
Deal found 8/8![Alaska Airlines logo]()
$373
This United Airlines deal was found by Cheapflights users on 8/9. 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.
Fri 9/45:00 am -
1 stop7h 21m
Sun 9/65:07 am -
2 stops10h 40m
Deal found 8/9![United Airlines logo]()
$442
This Alaska Airlines deal was found by Cheapflights users on 8/7. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/165:41 pm -
1 stop4h 20m
Tue 9/221:19 pm -
Nonstop1h 31m
Deal found 8/7![Alaska Airlines logo]()
$373
Last-minute flights from Portland to MontanaDiscover last-minute flight deals from Portland to Montana. Data last updated August 11, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Montana. Data last updated August 11, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 8/8. 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 9/95:10 pm -
1 stop4h 24m
Tue 9/156:33 pm -
1 stop6h 07m
Deal found 8/8![Delta logo]()
$257
This Delta deal was found by Cheapflights users on 8/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/109:46 am -
1 stop7h 07m
Sat 9/126:33 pm -
1 stop5h 00m
Deal found 8/7![Delta logo]()
$262
This Delta deal was found by Cheapflights users on 8/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/129:51 am -
1 stop4h 02m
Mon 9/218:25 am -
1 stop4h 21m
Deal found 8/7![Delta logo]()
$242
This Southwest deal was found by Cheapflights users on 8/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/154:00 pm -
1 stop5h 30m
Tue 9/226:55 am -
2 stops8h 10m
Deal found 8/10![Southwest logo]()
$252
This Alaska Airlines deal was found by Cheapflights users on 8/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1610:33 am -
Nonstop1h 51m
Wed 9/233:42 pm -
Nonstop1h 52m
Deal found 8/9![Alaska Airlines logo]()
$227
This Delta deal was found by Cheapflights users on 8/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/165:40 am -
1 stop5h 57m
Tue 9/225:30 am -
1 stop4h 11m
Deal found 8/7![Delta logo]()
$267
This Delta deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” 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 9/173:21 pm -
1 stop6h 28m
Mon 9/218:25 am -
1 stop4h 21m
Deal found 8/6![Delta logo]()
$247
This Delta deal was found by Cheapflights users on 8/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/177:15 pm -
1 stop4h 03m
Sun 9/205:30 am -
1 stop4h 11m
Deal found 8/7![Delta logo]()
$277
This Southwest deal was found by Cheapflights users on 8/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/192:05 pm -
1 stop6h 15m
Tue 9/226:55 am -
2 stops8h 10m
Deal found 8/10![Southwest logo]()
$263
This Delta deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” 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 9/235:50 pm -
1 stop3h 59m
Tue 9/293:38 pm -
1 stop5h 24m
Deal found 8/6![Delta logo]()
$237
This Southwest deal was found by Cheapflights users on 8/11. 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.
Fri 9/258:00 am -
1 stop5h 50m
Tue 9/296:55 am -
2 stops9h 30m
Deal found 8/11![Southwest logo]()
$241
This Southwest deal was found by Cheapflights users on 8/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/304:00 pm -
1 stop5h 30m
Thu 10/16:15 pm -
1 stop7h 15m
Deal found 8/10![Southwest logo]()
$249
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 11, 2026.
Search for one-way flight options from Portland to Montana. Find affordable one-way fares based on user searches. Data last updated August 11, 2026.
This United Airlines deal was found by Cheapflights users on 8/7. 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.
Sat 9/265:00 am -
1 stop7h 31m
Deal found 8/7![United Airlines logo]()
$119
This Southwest deal was found by Cheapflights users on 8/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/258:00 am -
1 stop5h 50m
Deal found 8/7![Southwest logo]()
$124
This Delta deal was found by Cheapflights users on 8/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/269:46 am -
1 stop7h 07m
Deal found 8/7![Delta logo]()
$129
This Delta deal was found by Cheapflights users on 8/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/155:10 pm -
1 stop6h 08m
Deal found 8/7![Delta logo]()
$134
This United Airlines deal was found by Cheapflights users on 8/9. 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.
Fri 9/114:07 pm -
1 stop5h 44m
Deal found 8/9![United Airlines logo]()
$134
This Delta deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” 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 10/225:15 pm -
1 stop6h 16m
Deal found 8/6![Delta logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 8/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/75:55 pm -
1 stop15h 17m
Deal found 8/10![Allegiant Air logo]()
$139
This Southwest deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” 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 8/288:00 am -
1 stop5h 50m
Deal found 8/6![Southwest logo]()
$143
This Priceline deal was found by Cheapflights users on 8/9. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/275:41 pm -
1 stop4h 20m
Deal found 8/9![Alaska Airlines logo]()
$144
This Priceline deal was found by Cheapflights users on 8/7. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2610:33 am -
Nonstop1h 51m
Deal found 8/7![Alaska Airlines logo]()
$144
This Southwest deal was found by Cheapflights users on 8/11. 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.
Tue 8/181:25 pm -
1 stop8h 00m
Deal found 8/11![Southwest logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 8/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2712:24 pm -
1 stop30h 32m
Deal found 8/8![Multiple Airlines logo]()
$147
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 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $227 (Alaska Airlines) |
One-way from | $119 (United Airlines) |
Popular in | July |
Cheapest in | January |
Average price | $327 |
Good round-trip deal | $307 or less |
Good one-way deal | $253 or less |
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 August 11, 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
PDX Portland - BZN Bozeman Gallatin Field
PDXBZN
Portland
Sat 9/12
8:40 am-3:30 pm
1 stop5h 50m
Bozeman Gallatin Field
Wed 9/23
4:32 pm-9:07 pm
1 stop5h 35m
$237
PortlandBozeman
PDX Portland - BZN Bozeman Gallatin Field
PDXBZN
Portland
Sat 9/12
9:51 am-2:53 pm
1 stop4h 02m
Bozeman Gallatin Field
Mon 9/21
8:25 am-11:46 am
1 stop4h 21m
$242
Quickest round-trip
PortlandMissoula
PDX Portland - MSO Missoula Johnson-Bell Field
PDXMSO
Portland
Sat 11/7
10:48 am-1:15 pm
Nonstop1h 27m
Missoula Johnson-Bell Field
Wed 11/11
12:55 pm-1:32 pm
Nonstop1h 37m
$257
PortlandMissoula
PDX Portland - MSO Missoula Johnson-Bell Field
PDXMSO
Portland
Wed 9/16
5:40 am-12:37 pm
1 stop5h 57m
Missoula Johnson-Bell Field
Tue 9/22
5:30 am-8:41 am
1 stop4h 11m
$267
PortlandMissoula
PDX Portland - MSO Missoula Johnson-Bell Field
PDXMSO
Portland
Fri 9/18
5:10 pm-12:18 am
1 stop6h 08m
Missoula Johnson-Bell Field
Sun 9/20
5:30 am-8:41 am
1 stop4h 11m
$277
PortlandBozeman
PDX Portland - BZN Bozeman Gallatin Field
PDXBZN
Portland
Thu 12/10
10:30 am-1:09 pm
Nonstop1h 39m
Bozeman Gallatin Field
Tue 1/5
4:00 pm-4:50 pm
Nonstop1h 50m
$288
PortlandBillings
PDX Portland - BIL Billings Logan Intl
PDXBIL
Portland
Wed 9/23
11:48 am-6:49 pm
1 stop6h 01m
Billings Logan Intl
Thu 9/24
3:42 pm-4:44 pm
Nonstop2h 02m
$292
PortlandBozeman
PDX Portland - BZN Bozeman Gallatin Field
PDXBZN
Portland
Tue 9/15
4:00 pm-10:30 pm
1 stop5h 30m
Bozeman Gallatin Field
Tue 9/22
6:55 am-5:50 pm
1 stop11h 55m
$301
PortlandBozeman
PDX Portland - BZN Bozeman Gallatin Field
PDXBZN
Portland
Thu 9/24
12:20 pm-11:45 pm
1 stop10h 25m
Bozeman Gallatin Field
Tue 9/29
6:55 am-3:25 pm
2 stops9h 30m
$305
PortlandBozeman
PDX Portland - BZN Bozeman Gallatin Field
PDXBZN
Portland
Sat 9/12
1:30 pm-8:10 pm
1 stop5h 40m
Bozeman Gallatin Field
Wed 9/23
6:55 am-2:05 pm
2 stops8h 10m
$312
Showing 1-10 of 60 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.
PDX-BZN
PDX-MSO
PDX-BIL
PDX-BTM
PDX-COD
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
PDX-USMT
PDX-BZN
PDX-MSO
PDX-BIL
PDX-BTM
What is the cheapest month to book a flight from Portland to Montana?
Currently, January is the cheapest month in which you can book a flight from Portland to Montana (average of $261). Flying from Portland to Montana in July is currently the most expensive (average of $540). 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.
What is the cheapest time of day to fly from PDX to MT?
Find hourly flight availability from Portland to Montana. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 11, 2026.
A simple way to save on the total cost of your ticket is to fly from Portland to Montana in the evening. If you’re flexible enough to do this you can expect to save up to 50% on your trip compared to booking a flight at noon.
Weekly flight availability from Portland to Montana
Explore weekly flight availability from Portland to Montana. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated August 11, 2026.
The most flights from PDX to USMT are scheduled on a Monday (1 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).
How much does it cost to fly round-trip from Portland to Montana?
Airfare is below average for this route at the moment.
Portland to Montana flights typically cost between $257 and $381 in September.The cheapest round-trip price found within the last 5 days was $227 on Alaska Airlines (Sep 16-Sep 23).
How far ahead should I book a flight from Portland to Montana?
The best time to book flights from Portland to Montana is 52 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest day to fly from Portland to Montana?
Use this chart to determine the cheapest time to fly round-trip from Portland to Montana. Price data was last updated on August 8, 2026.
Travelers seeking maximum savings on their Portland to Montana flight should consider departing on Friday evenings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
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 11, 2026.
Get a feel of what it's like to fly with Alaska Airlines,Delta, andHawaiian Airlines from Portland to Montana by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.9
Comfort
7.8
Food
7.0
Boarding
8.1
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Overall
7.9
Comfort
7.8
Food
7.0
Boarding
8.1
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Overall
7.9
Comfort
7.8
Food
7.0
Boarding
8.1
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Overall
7.9
Comfort
7.8
Food
7.0
Boarding
8.1
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Overall
7.9
Comfort
7.8
Food
7.0
Boarding
8.1
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
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 August 11, 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 4 airlines flying from Portland to Montana
Discover the top 4 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 August 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$88 | Average$382 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$123 | Average$282 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$137 | Average$384 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$211 | Average$271 | FlexibilityNo cancel fee | On-time69% |