$108+ 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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BZN
Aug 12 — Aug 191
Round-trip
1 adult, Economy
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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 July 13, 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 July 13, 2026.
This Alaska Airlines deal was found by Cheapflights users on 7/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2110:30 am
PDX
- BZN
Nonstop1h 52m
Alaska Airlines
Sat 10/243:35 pm
BZN
- PDX
Nonstop1h 52m
Alaska Airlines
Deal found 7/12![Alaska Airlines logo]()
$207
This Southwest deal was found by Cheapflights users on 7/9. 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.
Tue 8/184:00 pm
PDX
- BZN
1 stop5h 25m
Southwest
Thu 8/202:30 pm
BZN
- PDX
1 stop5h 50m
Southwest
Deal found 7/9![Southwest logo]()
$216
This Priceline deal was found by Cheapflights users on 7/12. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1810:30 am
PDX
- BZN
Nonstop1h 52m
Alaska Airlines
Sat 10/243:35 pm
BZN
- PDX
Nonstop1h 52m
Alaska Airlines
Deal found 7/12![Alaska Airlines logo]()
$217
This Southwest deal was found by Cheapflights users on 7/10. 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 9/1211:20 am
PDX
- BZN
1 stop7h 45m
Southwest
Tue 9/156:55 am
BZN
- PDX
2 stops8h 10m
Southwest
Deal found 7/10![Southwest logo]()
$222
This Alaska Airlines deal was found by Cheapflights users on 7/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2612:08 pm
PDX
- BIL
Nonstop1h 54m
Alaska Airlines
Tue 9/293:42 pm
BIL
- PDX
Nonstop2h 02m
Alaska Airlines
Deal found 7/12![Alaska Airlines logo]()
$227
This Alaska Airlines deal was found by Cheapflights users on 7/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1610:30 am
PDX
- BZN
Nonstop1h 52m
Alaska Airlines
Mon 10/193:35 pm
BZN
- PDX
Nonstop1h 52m
Alaska Airlines
Deal found 7/13![Alaska Airlines logo]()
$227
This Southwest deal was found by Cheapflights users on 7/12. 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.
Sat 10/242:40 pm
PDX
- BZN
1 stop5h 05m
Southwest
Sat 10/318:15 am
BZN
- PDX
2 stops9h 35m
Southwest
Deal found 7/12![Southwest logo]()
$232
This United Airlines deal was found by Cheapflights users on 7/8. 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.
Wed 8/265:00 am
PDX
- BZN
1 stop7h 24m
United Airlines
Fri 8/284:32 pm
BZN
- PDX
1 stop7h 22m
United Airlines
Deal found 7/8![United Airlines logo]()
$237
This Southwest deal was found by Cheapflights users on 7/10. 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.
Fri 8/214:20 pm
PDX
- BZN
1 stop5h 05m
Southwest
Sun 8/306:30 am
BZN
- PDX
1 stop5h 35m
Southwest
Deal found 7/10![Southwest logo]()
$238
This Southwest deal was found by Cheapflights users on 7/12. 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.
Mon 8/245:45 am
PDX
- BZN
2 stops9h 45m
Southwest
Sat 8/294:10 pm
BZN
- PDX
1 stop5h 55m
Southwest
Deal found 7/12![Southwest logo]()
$242
This Alaska Airlines deal was found by Cheapflights users on 7/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1410:48 am
PDX
- MSO
Nonstop1h 27m
Alaska Airlines
Wed 11/1812:55 pm
MSO
- PDX
Nonstop1h 37m
Alaska Airlines
Deal found 7/12![Alaska Airlines logo]()
$247
This Delta deal was found by Cheapflights users on 7/13. 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 10/167:15 pm
PDX
- BZN
1 stop4h 02m
Delta
Mon 10/191:10 pm
BZN
- PDX
1 stop4h 00m
Delta
Deal found 7/13![Delta logo]()
$247
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 July 13, 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 July 13, 2026.
This Southwest deal was found by Cheapflights users on 7/10. 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 9/2611:20 am
PDX
- BZN
1 stop7h 45m
Southwest
Wed 9/306:55 am
BZN
- PDX
2 stops9h 30m
Southwest
Deal found 7/10![Southwest logo]()
$222
This Alaska Airlines deal was found by Cheapflights users on 7/10. 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.
Sat 9/2612:08 pm
PDX
- BIL
Nonstop1h 54m
Alaska Airlines
Tue 9/293:42 pm
BIL
- PDX
Nonstop2h 02m
Alaska Airlines
Deal found 7/10![Alaska Airlines logo]()
$227
This Delta deal was found by Cheapflights users on 7/8. 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.
Thu 9/247:15 pm
PDX
- BZN
1 stop4h 00m
Delta
Tue 9/291:08 pm
BZN
- PDX
1 stop3h 57m
Delta
Deal found 7/8![Delta logo]()
$237
This United Airlines deal was found by Cheapflights users on 7/10. 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 9/264:07 pm
PDX
- BIL
1 stop5h 44m
United Airlines
Wed 9/305:57 pm
BIL
- PDX
1 stop5h 56m
United Airlines
Deal found 7/10![United Airlines logo]()
$266
This Alaska Airlines deal was found by Cheapflights users on 7/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1410:48 am
PDX
- MSO
Nonstop1h 27m
Alaska Airlines
Wed 11/1812:55 pm
MSO
- PDX
Nonstop1h 37m
Alaska Airlines
Deal found 7/12![Alaska Airlines logo]()
$247
This Southwest deal was found by Cheapflights users on 7/10. 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.
Fri 8/74:20 pm
PDX
- BZN
1 stop5h 05m
Southwest
Fri 8/145:05 pm
BZN
- PDX
1 stop7h 00m
Southwest
Deal found 7/10![Southwest logo]()
$252
This Delta deal was found by Cheapflights users on 7/9. 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.
Wed 8/195:08 pm
PDX
- BIL
1 stop4h 17m
Delta
Sun 8/235:20 am
BIL
- PDX
1 stop4h 17m
Delta
Deal found 7/9![Delta logo]()
$257
This United Airlines deal was found by Cheapflights users on 7/9. 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 9/44:07 pm
PDX
- BIL
1 stop5h 00m
United Airlines
Sat 9/57:00 am
BIL
- PDX
1 stop7h 14m
United Airlines
Deal found 7/9![United Airlines logo]()
$274
This Alaska Airlines deal was found by Cheapflights users on 7/8. 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.
Wed 9/1610:48 am
PDX
- MSO
Nonstop1h 37m
Alaska Airlines
Tue 9/227:00 am
MSO
- PDX
1 stop3h 40m
Alaska Airlines
Deal found 7/8![Alaska Airlines logo]()
$257
This Southwest deal was found by Cheapflights users on 7/12. 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.
Mon 8/175:15 am
PDX
- BZN
2 stops8h 35m
Southwest
Thu 8/205:05 pm
BZN
- PDX
1 stop7h 00m
Southwest
Deal found 7/12![Southwest logo]()
$266
This Delta deal was found by Cheapflights users on 7/9. 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.
Fri 8/145:08 pm
PDX
- BZN
1 stop5h 56m
Delta
Sat 8/226:00 am
BZN
- PDX
1 stop3h 37m
Delta
Deal found 7/9![Delta logo]()
$277
This United Airlines deal was found by Cheapflights users on 7/12. 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 8/188:40 am
PDX
- BZN
1 stop5h 50m
United Airlines
Fri 8/214:32 pm
BZN
- PDX
1 stop5h 33m
United Airlines
Deal found 7/12![United Airlines logo]()
$280
This Alaska Airlines deal was found by Cheapflights users on 7/8. 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.
Fri 10/26:20 am
PDX
- BIL
1 stop4h 20m
Alaska Airlines
Mon 10/56:01 am
BIL
- PDX
1 stop4h 46m
Alaska Airlines
Deal found 7/8![Alaska Airlines logo]()
$267
This Southwest deal was found by Cheapflights users on 7/12. 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.
Mon 8/245:45 am
PDX
- BZN
2 stops9h 45m
Southwest
Thu 8/273:30 pm
BZN
- PDX
2 stops8h 35m
Southwest
Deal found 7/12![Southwest logo]()
$271
This Southwest deal was found by Cheapflights users on 7/9. 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.
Fri 8/285:15 am
PDX
- BZN
2 stops8h 35m
Southwest
Mon 8/317:20 am
BZN
- PDX
2 stops7h 05m
Southwest
Deal found 7/9![Southwest logo]()
$274
This United Airlines deal was found by Cheapflights users on 7/12. 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.
Wed 8/127:00 am
PDX
- BZN
1 stop7h 19m
United Airlines
Tue 8/184:32 pm
BZN
- PDX
1 stop5h 33m
United Airlines
Deal found 7/12![United Airlines logo]()
$313
This Alaska Airlines deal was found by Cheapflights users on 7/8. 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.
Thu 9/245:41 pm
PDX
- BZN
1 stop4h 18m
Alaska Airlines
Tue 9/293:42 pm
BZN
- PDX
Nonstop1h 52m
Alaska Airlines
Deal found 7/8![Alaska Airlines logo]()
$297
This Southwest deal was found by Cheapflights users on 7/12. 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.
Wed 8/2612:30 pm
PDX
- BZN
2 stops8h 55m
Southwest
Mon 8/317:20 am
BZN
- PDX
1 stop5h 20m
Southwest
Deal found 7/12![Southwest logo]()
$278
This Delta deal was found by Cheapflights users on 7/12. 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.
Sat 8/295:08 pm
PDX
- MSO
1 stop5h 04m
Delta
Sun 8/305:30 am
MSO
- PDX
1 stop4h 07m
Delta
Deal found 7/12![Delta logo]()
$353
This United Airlines deal was found by Cheapflights users on 7/12. 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 9/124:07 pm
PDX
- BIL
1 stop5h 46m
United Airlines
Sat 9/192:29 pm
BIL
- PDX
2 stops9h 16m
United Airlines
Deal found 7/12![United Airlines logo]()
$332
This Alaska Airlines deal was found by Cheapflights users on 7/8. 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.
Fri 10/239:28 am
PDX
- MSO
1 stop4h 22m
Alaska Airlines
Sat 10/247:00 am
MSO
- PDX
1 stop3h 47m
Alaska Airlines
Deal found 7/8![Alaska Airlines logo]()
$327
This Delta deal was found by Cheapflights users on 7/8. 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 8/125:30 am
PDX
- BTM
2 stops10h 26m
Delta
Sun 8/166:10 pm
BTM
- PDX
1 stop6h 29m
Delta
Deal found 7/8![Delta logo]()
$362
This Southwest deal was found by Cheapflights users on 7/10. 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.
Mon 8/35:35 pm
PDX
- BZN
1 stop5h 00m
Southwest
Wed 8/56:55 am
BZN
- PDX
2 stops9h 30m
Southwest
Deal found 7/10![Southwest logo]()
$314
This Alaska Airlines deal was found by Cheapflights users on 7/10. 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.
Fri 9/255:41 pm
PDX
- MSO
1 stop4h 20m
Alaska Airlines
Tue 9/297:00 am
MSO
- PDX
2 stops7h 50m
Alaska Airlines
Deal found 7/10![Alaska Airlines logo]()
$331
This Delta deal was found by Cheapflights users on 7/11. 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.
Fri 8/79:45 am
PDX
- BTM
1 stop6h 11m
Delta
Mon 8/106:10 pm
BTM
- PDX
1 stop6h 29m
Delta
Deal found 7/11![Delta logo]()
$372
This United Airlines deal was found by Cheapflights users on 7/12. 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.
Wed 8/125:00 am
PDX
- BIL
1 stop7h 21m
United Airlines
Sat 8/155:07 am
BIL
- PDX
1 stop5h 25m
United Airlines
Deal found 7/12![United Airlines logo]()
$382
This Alaska Airlines deal was found by Cheapflights users on 7/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1610:37 am
PDX
- MSO
2 stops11h 24m
Alaska Airlines
Thu 9/247:00 am
MSO
- PDX
1 stop5h 20m
Alaska Airlines
Deal found 7/11![Alaska Airlines logo]()
$331
This Delta deal was found by Cheapflights users on 7/8. 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 8/265:30 am
PDX
- BTM
2 stops10h 26m
Delta
Fri 8/286:10 pm
BTM
- PDX
1 stop6h 34m
Delta
Deal found 7/8![Delta logo]()
$402
This Alaska Airlines deal was found by Cheapflights users on 7/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/197:09 am
PDX
- BIL
1 stop15h 20m
Alaska Airlines
Sun 8/236:21 pm
BIL
- PDX
Nonstop2h 02m
Alaska Airlines
Deal found 7/11![Alaska Airlines logo]()
$350
This United Airlines deal was found by Cheapflights users on 7/8. 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 8/284:07 pm
PDX
- COD
1 stop5h 38m
United Airlines
Tue 9/15:53 pm
COD
- PDX
1 stop22h 12m
United Airlines
Deal found 7/8![United Airlines logo]()
$444
Last-minute flights from Portland to MontanaDiscover last-minute flight deals from Portland to Montana. Data last updated July 13, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Montana. Data last updated July 13, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 7/9. 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.
Thu 8/612:20 pm
PDX
- BZN
1 stop10h 20m
Southwest
Thu 8/133:30 pm
BZN
- PDX
1 stop9h 10m
Southwest
Deal found 7/9![Southwest logo]()
$257
This Southwest deal was found by Cheapflights users on 7/10. 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.
Fri 8/74:20 pm
PDX
- BZN
1 stop5h 05m
Southwest
Fri 8/145:05 pm
BZN
- PDX
1 stop7h 00m
Southwest
Deal found 7/10![Southwest logo]()
$252
This Southwest deal was found by Cheapflights users on 7/9. 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.
Tue 8/184:00 pm
PDX
- BZN
1 stop5h 25m
Southwest
Thu 8/202:30 pm
BZN
- PDX
1 stop5h 50m
Southwest
Deal found 7/9![Southwest logo]()
$216
This Delta deal was found by Cheapflights users on 7/9. 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.
Wed 8/195:08 pm
PDX
- BIL
1 stop4h 17m
Delta
Sun 8/235:20 am
BIL
- PDX
1 stop4h 17m
Delta
Deal found 7/9![Delta logo]()
$257
This Southwest deal was found by Cheapflights users on 7/10. 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.
Fri 8/214:20 pm
PDX
- BZN
1 stop5h 05m
Southwest
Sun 8/306:30 am
BZN
- PDX
1 stop5h 35m
Southwest
Deal found 7/10![Southwest logo]()
$238
This Southwest deal was found by Cheapflights users on 7/8. 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.
Sat 8/222:05 pm
PDX
- BZN
1 stop6h 10m
Southwest
Wed 8/266:55 am
BZN
- PDX
2 stops9h 30m
Southwest
Deal found 7/8![Southwest logo]()
$222
This Southwest deal was found by Cheapflights users on 7/12. 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.
Mon 8/245:45 am
PDX
- BZN
2 stops9h 45m
Southwest
Sat 8/294:10 pm
BZN
- PDX
1 stop5h 55m
Southwest
Deal found 7/12![Southwest logo]()
$242
This Delta deal was found by Cheapflights users on 7/11. 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.
Tue 8/255:45 am
PDX
- BIL
1 stop4h 22m
Delta
Tue 9/15:20 am
BIL
- PDX
1 stop4h 17m
Delta
Deal found 7/11![Delta logo]()
$247
This Trip.com deal was found by Cheapflights users on 7/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2512:08 pm
PDX
- BIL
Nonstop1h 54m
Alaska Airlines
Tue 9/16:14 am
BIL
- PDX
1 stop4h 19m
Alaska Airlines
Deal found 7/11![Alaska Airlines logo]()
$252
This United Airlines deal was found by Cheapflights users on 7/8. 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.
Wed 8/265:00 am
PDX
- BZN
1 stop7h 24m
United Airlines
Fri 8/284:32 pm
BZN
- PDX
1 stop7h 22m
United Airlines
Deal found 7/8![United Airlines logo]()
$237
This Southwest deal was found by Cheapflights users on 7/8. 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.
Thu 8/274:20 pm
PDX
- BZN
1 stop5h 05m
Southwest
Fri 8/282:30 pm
BZN
- PDX
1 stop5h 50m
Southwest
Deal found 7/8![Southwest logo]()
$250
This Delta deal was found by Cheapflights users on 7/9. 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.
Fri 8/285:08 pm
PDX
- BZN
1 stop5h 56m
Delta
Mon 8/318:25 am
BZN
- PDX
1 stop4h 20m
Delta
Deal found 7/9![Delta logo]()
$247
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 July 13, 2026.
Search for one-way flight options from Portland to Montana. Find affordable one-way fares based on user searches. Data last updated July 13, 2026.
This Southwest deal was found by Cheapflights users on 7/9. 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.
Tue 8/254:00 pm
PDX
- BZN
1 stop5h 25m
Southwest
Deal found 7/9![Southwest logo]()
$108
This Southwest deal was found by Cheapflights users on 7/10. 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.
Fri 9/111:35 pm
PDX
- BZN
1 stop7h 50m
Southwest
Deal found 7/10![Southwest logo]()
$115
This Kiwi.com deal was found by Cheapflights users on 7/9. 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.
Thu 8/201:47 pm
PDX
- BIL
1 stop26h 08m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$123
This Southwest deal was found by Cheapflights users on 7/10. 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 9/101:35 pm
PDX
- BZN
2 stops9h 05m
Southwest
Deal found 7/10![Southwest logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 7/10. 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.
Thu 8/271:47 pm
PDX
- FCA
1 stop19h 17m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$132
This Priceline deal was found by Cheapflights users on 7/8. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/259:30 am
PDX
- MSO
1 stop4h 47m
Alaska Airlines
Deal found 7/8![Alaska Airlines logo]()
$134
This Delta deal was found by Cheapflights users on 7/9. 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.
Wed 8/195:08 pm
PDX
- BIL
1 stop4h 17m
Delta
Deal found 7/9![Delta logo]()
$134
This Expedia deal was found by Cheapflights users on 7/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2510:33 am
PDX
- BZN
Nonstop1h 51m
Alaska Airlines
Deal found 7/9![Alaska Airlines logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 7/8. 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.
Thu 8/136:49 pm
PDX
- FCA
1 stop13h 51m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$137
This Southwest deal was found by Cheapflights users on 7/11. 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 8/144:20 pm
PDX
- BZN
1 stop5h 05m
Southwest
Deal found 7/11![Southwest logo]()
$138
This Delta deal was found by Cheapflights users on 7/9. 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.
Fri 8/287:00 pm
PDX
- MSO
1 stop4h 18m
Delta
Deal found 7/9![Delta logo]()
$139
This Southwest deal was found by Cheapflights users on 7/9. 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.
Thu 8/612:20 pm
PDX
- BZN
1 stop10h 20m
Southwest
Deal found 7/9![Southwest logo]()
$143
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 July 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $207 (Alaska Airlines) |
One-way from | $108 (Southwest) |
Popular in | June |
Cheapest in | January |
Average price | $438 |
Good round-trip deal | $257 or less |
Good one-way deal | $208 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 July 13, 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 - BZN
PDXBZN
Portland
Sat 9/26
11:20 am-8:05 pm
1 stop7h 45m
Bozeman Gallatin Field
Wed 9/30
6:55 am-3:25 pm
2 stops9h 30m
$222
PortlandBillings
PDX - BIL
PDXBIL
Portland
Sat 9/26
12:08 pm-3:02 pm
Nonstop1h 54m
Billings Logan Intl
Tue 9/29
3:42 pm-4:44 pm
Nonstop2h 02m
$227
PortlandBozeman
PDX - BZN
PDXBZN
Portland
Thu 9/24
7:15 pm-12:15 am
1 stop4h 00m
Bozeman Gallatin Field
Tue 9/29
1:08 pm-4:05 pm
1 stop3h 57m
$237
Quickest round-trip
PortlandMissoula
PDX - MSO
PDXMSO
Portland
Sat 11/14
10:48 am-1:15 pm
Nonstop1h 27m
Missoula Johnson-Bell Field
Wed 11/18
12:55 pm-1:32 pm
Nonstop1h 37m
$247
PortlandBozeman
PDX - BZN
PDXBZN
Portland
Fri 8/7
4:20 pm-10:25 pm
1 stop5h 05m
Bozeman Gallatin Field
Fri 8/14
5:05 pm-11:05 pm
1 stop7h 00m
$252
PortlandBillings
PDX - BIL
PDXBIL
Portland
Wed 8/19
5:08 pm-10:25 pm
1 stop4h 17m
Billings Logan Intl
Sun 8/23
5:20 am-8:37 am
1 stop4h 17m
$257
PortlandMissoula
PDX - MSO
PDXMSO
Portland
Wed 9/16
10:48 am-1:25 pm
Nonstop1h 37m
Missoula Johnson-Bell Field
Tue 9/22
7:00 am-9:40 am
1 stop3h 40m
$257
PortlandBillings
PDX - BIL
PDXBIL
Portland
Sat 9/26
4:07 pm-10:51 pm
1 stop5h 44m
Billings Logan Intl
Wed 9/30
5:57 pm-10:53 pm
1 stop5h 56m
$266
PortlandBozeman
PDX - BZN
PDXBZN
Portland
Mon 8/17
5:15 am-2:50 pm
2 stops8h 35m
Bozeman Gallatin Field
Thu 8/20
5:05 pm-11:05 pm
1 stop7h 00m
$266
PortlandBillings
PDX - BIL
PDXBIL
Portland
Fri 10/2
6:20 am-11:40 am
1 stop4h 20m
Billings Logan Intl
Mon 10/5
6:01 am-9:47 am
1 stop4h 46m
$267
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-BIL
PDX-FCA
PDX-MSO
PDX-GTF
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-BIL
PDX-FCA
PDX-MSO
What is the cheapest month to book a flight from Portland to Montana?
Currently, March is the cheapest month in which you can book a flight from Portland to Montana (average of $88). Flying from Portland to Montana in June is currently the most expensive (average of $261). 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 July 13, 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 49% 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 July 13, 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?
How far ahead should I book a flight from Portland to Montana?
The best time to book flights from Portland to Montana is 82 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 July 11, 2026.
Travelers seeking maximum savings on their Portland to Montana flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Thursday at noon 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 July 13, 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.
Crew
8.5
Food
7.1
Boarding
8.1
Comfort
7.8
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Crew
8.5
Food
7.1
Boarding
8.1
Comfort
7.8
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Crew
8.5
Food
7.1
Boarding
8.1
Comfort
7.8
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Crew
8.5
Food
7.1
Boarding
8.1
Comfort
7.8
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Crew
8.5
Food
7.1
Boarding
8.1
Comfort
7.8
Entertainment
7.0
Overall
7.9
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.
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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 July 13, 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 July 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$88 | Average$405 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$137 | Average$288 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$137 | Average$400 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$211 | Average$271 | FlexibilityNo cancel fee | On-time69% |