$64+ Cheap flights from Portland (PDX) to Idaho
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 8/14. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BOI
Aug 13 — Aug 201
Round-trip
1 adult, Economy
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Cheapest flights from Portland to IdahoExplore the most affordable flight options available from Portland to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 14, 2026.
Explore the most affordable flight options available from Portland to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 14, 2026.
This Booking.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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1012:25 pm
PDX
- IDA
Nonstop1h 40m
Allegiant Air
Mon 8/173:55 pm
IDA
- PDX
Nonstop1h 41m
Allegiant Air
Deal found 7/10![Allegiant Air logo]()
$96
This Booking.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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/312:20 pm
PDX
- IDA
Nonstop1h 40m
Allegiant Air
Mon 8/103:55 pm
IDA
- PDX
Nonstop1h 41m
Allegiant Air
Deal found 7/11![Allegiant Air logo]()
$99
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/3112:20 pm
PDX
- IDA
Nonstop1h 40m
Allegiant Air
Fri 8/73:55 pm
IDA
- PDX
Nonstop1h 41m
Allegiant Air
Deal found 7/12![Allegiant Air logo]()
$125
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/312:20 pm
PDX
- IDA
Nonstop1h 40m
Allegiant Air
Fri 8/73:55 pm
IDA
- PDX
Nonstop1h 41m
Allegiant Air
Deal found 7/12![Allegiant Air logo]()
$130
This Booking.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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1712:20 pm
PDX
- IDA
Nonstop1h 40m
Allegiant Air
Mon 7/203:50 pm
IDA
- PDX
Nonstop1h 36m
Allegiant Air
Deal found 7/9![Allegiant Air logo]()
$161
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2610:47 am
PDX
- BOI
Nonstop1h 34m
Alaska Airlines
Wed 9/24:28 pm
BOI
- PDX
Nonstop1h 18m
Alaska Airlines
Deal found 7/12![Alaska Airlines logo]()
$193
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.
Tue 10/1310:45 am
PDX
- BOI
Nonstop1h 29m
Alaska Airlines
Sat 10/175:56 am
BOI
- PDX
Nonstop1h 24m
Alaska Airlines
Deal found 7/12![Alaska Airlines logo]()
$197
This Travelocity 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/262:53 pm
PDX
- BOI
Nonstop1h 22m
Alaska Airlines
Tue 9/296:00 am
BOI
- PDX
Nonstop1h 20m
Alaska Airlines
Deal found 7/9![Alaska Airlines logo]()
$201
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.
Wed 8/196:35 am
PDX
- BOI
1 stop6h 15m
Southwest
Thu 8/2010:50 am
BOI
- PDX
1 stop4h 55m
Southwest
Deal found 7/9![Southwest logo]()
$204
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2210:47 am
PDX
- BOI
Nonstop1h 34m
Alaska Airlines
Mon 8/248:25 pm
BOI
- PDX
Nonstop1h 20m
Alaska Airlines
Deal found 7/13![Alaska Airlines logo]()
$206
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 8/229:33 pm
PDX
- BOI
Nonstop1h 22m
Alaska Airlines
Sun 8/231:32 pm
BOI
- PDX
Nonstop1h 18m
Alaska Airlines
Deal found 7/12![Alaska Airlines logo]()
$207
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/219:33 pm
PDX
- BOI
Nonstop1h 22m
Alaska Airlines
Sat 9/261:31 pm
BOI
- PDX
Nonstop1h 18m
Alaska Airlines
Deal found 7/9![Alaska Airlines logo]()
$208
Best flights from Portland to IdahoDiscover carefully curated flight deals from Portland to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 14, 2026.
Discover carefully curated flight deals from Portland to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 14, 2026.
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/710:33 am
PDX
- BOI
Nonstop1h 24m
Alaska Airlines
Tue 11/109:00 am
BOI
- PDX
Nonstop1h 30m
Alaska Airlines
Deal found 7/9![Alaska Airlines logo]()
$197
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 8/65:15 am
PDX
- BOI
2 stops8h 00m
Southwest
Tue 8/112:20 pm
BOI
- PDX
2 stops9h 00m
Southwest
Deal found 7/10![Southwest logo]()
$215
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.
Sat 8/225:54 pm
PDX
- GEG
1 stop3h 41m
Delta
Sat 8/295:40 pm
GEG
- PDX
1 stop4h 58m
Delta
Deal found 7/13![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 11/73:36 pm
PDX
- BOI
1 stop4h 43m
United Airlines
Tue 11/106:59 pm
BOI
- PDX
1 stop4h 45m
United Airlines
Deal found 7/10![United Airlines logo]()
$287
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.
Wed 8/1911:35 am
PDX
- BOI
2 stops9h 50m
Southwest
Thu 8/203:50 pm
BOI
- PDX
2 stops8h 25m
Southwest
Deal found 7/10![Southwest logo]()
$215
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.
Fri 8/2112:25 pm
PDX
- BOI
1 stop5h 23m
Delta
Sun 8/235:59 pm
BOI
- PDX
1 stop5h 03m
Delta
Deal found 7/12![Delta logo]()
$237
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.
Sat 9/127:00 am
PDX
- BOI
Nonstop1h 34m
Alaska Airlines
Sat 9/267:20 am
BOI
- PDX
1 stop14h 29m
Alaska Airlines
Deal found 7/13![Alaska Airlines logo]()
$240
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 9/52:53 pm
PDX
- BOI
Nonstop1h 22m
Alaska Airlines
Fri 9/116:49 pm
BOI
- PDX
1 stop15h 41m
Alaska Airlines
Deal found 7/12![Alaska Airlines logo]()
$240
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.
Mon 8/2412:25 pm
PDX
- GEG
1 stop4h 35m
Delta
Wed 8/267:05 am
GEG
- PDX
1 stop3h 37m
Delta
Deal found 7/13![Delta 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 8/288:24 pm
PDX
- GEG
1 stop3h 35m
Delta
Sun 8/307:05 am
GEG
- PDX
1 stop3h 37m
Delta
Deal found 7/13![Delta logo]()
$257
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.
Mon 8/3110:30 am
PDX
- IDA
Nonstop1h 54m
Alaska Airlines
Tue 9/83:57 pm
IDA
- PDX
Nonstop1h 53m
Alaska Airlines
Deal found 7/10![Alaska Airlines logo]()
$257
This Southwest deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/811:35 am
PDX
- BOI
2 stops9h 50m
Southwest
Sun 9/136:00 am
BOI
- PDX
1 stop6h 20m
Southwest
Deal found 7/14![Southwest logo]()
$287
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.
Sat 9/129:44 am
PDX
- GEG
1 stop5h 34m
Delta
Mon 9/1411:10 am
GEG
- PDX
1 stop5h 59m
Delta
Deal found 7/11![Delta logo]()
$257
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 10/1610:30 am
PDX
- IDA
Nonstop1h 36m
Alaska Airlines
Sun 10/184:12 pm
IDA
- PDX
Nonstop1h 36m
Alaska Airlines
Deal found 7/10![Alaska Airlines logo]()
$257
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:00 am
PDX
- JAC
1 stop6h 44m
United Airlines
Sat 10/177:00 am
JAC
- PDX
1 stop7h 15m
United Airlines
Deal found 7/13![United Airlines logo]()
$357
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 7/3110:00 am
PDX
- BOI
1 stop4h 45m
Southwest
Sun 8/27:50 pm
BOI
- PDX
1 stop5h 45m
Southwest
Deal found 7/9![Southwest logo]()
$300
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.
Thu 8/2010:30 am
PDX
- IDA
Nonstop1h 54m
Alaska Airlines
Thu 8/273:57 pm
IDA
- PDX
Nonstop1h 53m
Alaska Airlines
Deal found 7/10![Alaska Airlines logo]()
$257
This Delta deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/145:54 pm
PDX
- GEG
1 stop3h 22m
Delta
Wed 8/197:05 am
GEG
- PDX
1 stop4h 40m
Delta
Deal found 7/14![Delta logo]()
$262
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.
Tue 8/2510:33 am
PDX
- GEG
1 stop12h 16m
Alaska Airlines
Sun 8/308:30 am
GEG
- PDX
Nonstop1h 17m
Alaska Airlines
Deal found 7/11![Alaska Airlines logo]()
$258
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.
Thu 8/135:54 pm
PDX
- GEG
1 stop6h 05m
Delta
Wed 8/1911:09 am
GEG
- PDX
1 stop3h 36m
Delta
Deal found 7/12![Delta logo]()
$267
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 8/227:03 am
PDX
- GEG
2 stops15h 46m
Alaska Airlines
Sat 8/297:03 am
GEG
- PDX
1 stop9h 50m
Alaska Airlines
Deal found 7/10![Alaska Airlines logo]()
$262
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.
Fri 9/185:30 am
PDX
- GEG
1 stop3h 07m
Delta
Sun 9/203:59 pm
GEG
- PDX
1 stop4h 03m
Delta
Deal found 7/12![Delta logo]()
$267
This United Airlines deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/118:40 am
PDX
- JAC
1 stop5h 48m
United Airlines
Tue 8/184:25 pm
JAC
- PDX
1 stop5h 40m
United Airlines
Deal found 7/14![United Airlines logo]()
$447
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2810:30 am
PDX
- IDA
Nonstop1h 54m
Alaska Airlines
Mon 8/316:18 am
IDA
- PDX
1 stop4h 15m
Alaska Airlines
Deal found 7/9![Alaska Airlines logo]()
$267
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.
Thu 8/205:45 am
PDX
- IDA
1 stop4h 05m
Delta
Thu 8/277:00 pm
IDA
- PDX
1 stop5h 39m
Delta
Deal found 7/13![Delta logo]()
$277
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.
Tue 8/187:32 am
PDX
- GEG
1 stop15h 35m
Alaska Airlines
Thu 8/207:03 am
GEG
- PDX
1 stop15h 52m
Alaska Airlines
Deal found 7/11![Alaska Airlines logo]()
$269
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/285:45 am
PDX
- IDA
1 stop4h 05m
Delta
Sun 8/306:00 am
IDA
- PDX
1 stop3h 37m
Delta
Deal found 7/10![Delta logo]()
$277
This United Airlines deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/255:15 am
PDX
- SUN
1 stop4h 44m
United Airlines
Wed 7/297:40 am
SUN
- PDX
1 stop5h 27m
United Airlines
Deal found 7/14![United Airlines logo]()
$499
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.
Sat 8/229:45 am
PDX
- JAC
1 stop6h 12m
Delta
Wed 8/266:01 pm
JAC
- PDX
1 stop6h 38m
Delta
Deal found 7/9![Delta logo]()
$297
This Alaska Airlines deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/510:30 am
PDX
- IDA
Nonstop1h 36m
Alaska Airlines
Mon 8/104:14 pm
IDA
- PDX
Nonstop1h 36m
Alaska Airlines
Deal found 7/14![Alaska Airlines logo]()
$327
Last-minute flights from Portland to IdahoDiscover last-minute flight deals from Portland to Idaho. Data last updated July 14, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Idaho. Data last updated July 14, 2026 and is based on user searches.
This Booking.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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1712:20 pm
PDX
- IDA
Nonstop1h 40m
Allegiant Air
Mon 7/203:50 pm
IDA
- PDX
Nonstop1h 36m
Allegiant Air
Deal found 7/9![Allegiant Air logo]()
$161
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/3112:20 pm
PDX
- IDA
Nonstop1h 40m
Allegiant Air
Fri 8/73:55 pm
IDA
- PDX
Nonstop1h 41m
Allegiant Air
Deal found 7/12![Allegiant Air logo]()
$125
This Kiwi.com deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/3112:20 pm
PDX
- IDA
Nonstop1h 40m
Allegiant Air
Thu 8/139:48 am
IDA
- PDX
1 stop9h 20m
Allegiant Air
Deal found 7/14![Allegiant Air logo]()
$213
This Booking.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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/312:20 pm
PDX
- IDA
Nonstop1h 40m
Allegiant Air
Mon 8/103:55 pm
IDA
- PDX
Nonstop1h 41m
Allegiant Air
Deal found 7/11![Allegiant Air logo]()
$99
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/312:20 pm
PDX
- IDA
Nonstop1h 40m
Allegiant Air
Fri 8/73:55 pm
IDA
- PDX
Nonstop1h 41m
Allegiant Air
Deal found 7/12![Allegiant Air logo]()
$130
This Booking.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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1012:25 pm
PDX
- IDA
Nonstop1h 40m
Allegiant Air
Mon 8/173:55 pm
IDA
- PDX
Nonstop1h 41m
Allegiant Air
Deal found 7/10![Allegiant Air logo]()
$96
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1712:25 pm
PDX
- IDA
Nonstop1h 40m
Multiple Airlines
Wed 8/196:18 am
IDA
- PDX
1 stop4h 15m
Multiple Airlines
Deal found 7/12![Multiple Airlines logo]()
$209
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/199:33 pm
PDX
- BOI
Nonstop1h 22m
Alaska Airlines
Sat 8/224:28 pm
BOI
- PDX
Nonstop1h 18m
Alaska Airlines
Deal found 7/11![Alaska Airlines logo]()
$197
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.
Wed 8/196:35 am
PDX
- BOI
1 stop6h 15m
Southwest
Thu 8/2010:50 am
BOI
- PDX
1 stop4h 55m
Southwest
Deal found 7/9![Southwest logo]()
$204
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2210:47 am
PDX
- BOI
Nonstop1h 34m
Alaska Airlines
Mon 8/248:25 pm
BOI
- PDX
Nonstop1h 20m
Alaska Airlines
Deal found 7/13![Alaska Airlines logo]()
$206
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 8/229:33 pm
PDX
- BOI
Nonstop1h 22m
Alaska Airlines
Sun 8/231:32 pm
BOI
- PDX
Nonstop1h 18m
Alaska Airlines
Deal found 7/12![Alaska Airlines logo]()
$207
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2610:47 am
PDX
- BOI
Nonstop1h 34m
Alaska Airlines
Wed 9/24:28 pm
BOI
- PDX
Nonstop1h 18m
Alaska Airlines
Deal found 7/12![Alaska Airlines logo]()
$193
One-way flights from Portland to IdahoSearch for one-way flight options from Portland to Idaho. Find affordable one-way fares based on user searches. Data last updated July 14, 2026.
Search for one-way flight options from Portland to Idaho. Find affordable one-way fares based on user searches. Data last updated July 14, 2026.
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1412:25 pm
PDX
- IDA
Nonstop1h 40m
Allegiant Air
Deal found 7/12![Allegiant Air logo]()
$64
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1012:25 pm
PDX
- IDA
Nonstop1h 40m
Allegiant Air
Deal found 7/12![Allegiant Air logo]()
$70
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.
Tue 8/184:00 pm
PDX
- BOI
1 stop6h 10m
Southwest
Deal found 7/10![Southwest logo]()
$102
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.
Wed 8/196:35 am
PDX
- BOI
1 stop6h 15m
Southwest
Deal found 7/11![Southwest logo]()
$109
This Jettzy 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 Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/248:14 am
PDX
- BOI
1 stop6h 16m
Alaska Airlines
Deal found 7/11![Alaska Airlines logo]()
$112
This Southwest deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/137:00 am
PDX
- BOI
1 stop5h 45m
Southwest
Deal found 7/14![Southwest logo]()
$114
This Delta deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/225:54 pm
PDX
- GEG
1 stop3h 41m
Delta
Deal found 7/14![Delta logo]()
$119
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.
Mon 10/195:30 am
PDX
- BOI
1 stop3h 24m
Delta
Deal found 7/12![Delta logo]()
$119
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/215:38 pm
PDX
- GEG
1 stop6h 15m
Alaska Airlines
Deal found 7/10![Alaska Airlines logo]()
$121
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/169:00 am
PDX
- BOI
1 stop5h 31m
United Airlines
Deal found 7/13![United Airlines logo]()
$122
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/271:47 pm
PDX
- IDA
1 stop19h 35m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$123
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/193:00 pm
PDX
- GEG
1 stop4h 53m
Alaska Airlines
Deal found 7/13![Alaska Airlines logo]()
$124
Find flight deals from Portland to Idaho
Keep the following information in mind while searching for Portland to Idaho flight deals. Data was last updated July 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $96 (Booking.com) |
One-way from | $64 (Booking.com) |
Popular in | June |
Cheapest in | April |
Average price | $348 |
Good round-trip deal | $114 or less |
Good one-way deal | $80 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Portland to Idaho 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 14, 2026.
Use the filters below to find and compare flights from Portland to Idaho that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
PortlandBoise
PDX - BOI
PDXBOI
Portland
Sat 11/7
10:33 am-12:57 pm
Nonstop1h 24m
Boise Air Term. Gowen Fld
Tue 11/10
9:00 am-9:30 am
Nonstop1h 30m
$197
PortlandBoise
PDX - BOI
PDXBOI
Portland
Thu 8/6
5:15 am-2:15 pm
2 stops8h 00m
Boise Air Term. Gowen Fld
Tue 8/11
2:20 pm-10:20 pm
2 stops9h 00m
$215
PortlandBoise
PDX - BOI
PDXBOI
Portland
Wed 8/19
11:35 am-10:25 pm
2 stops9h 50m
Boise Air Term. Gowen Fld
Thu 8/20
3:50 pm-11:15 pm
2 stops8h 25m
$215
PortlandSpokane
PDX - GEG
PDXGEG
Portland
Sat 8/22
5:54 pm-9:35 pm
1 stop3h 41m
Spokane
Sat 8/29
5:40 pm-10:38 pm
1 stop4h 58m
$237
PortlandBoise
PDX - BOI
PDXBOI
Portland
Fri 8/21
12:25 pm-6:48 pm
1 stop5h 23m
Boise Air Term. Gowen Fld
Sun 8/23
5:59 pm-10:02 pm
1 stop5h 03m
$237
PortlandBoise
PDX - BOI
PDXBOI
Portland
Sat 9/12
7:00 am-9:34 am
Nonstop1h 34m
Boise Air Term. Gowen Fld
Sat 9/26
7:20 am-8:49 pm
1 stop14h 29m
$240
PortlandBoise
PDX - BOI
PDXBOI
Portland
Sat 9/5
2:53 pm-5:15 pm
Nonstop1h 22m
Boise Air Term. Gowen Fld
Fri 9/11
6:49 pm-9:30 am
1 stop15h 41m
$240
PortlandSpokane
PDX - GEG
PDXGEG
Portland
Mon 8/24
12:25 pm-5:00 pm
1 stop4h 35m
Spokane
Wed 8/26
7:05 am-10:42 am
1 stop3h 37m
$247
PortlandSpokane
PDX - GEG
PDXGEG
Portland
Fri 8/28
8:24 pm-11:59 pm
1 stop3h 35m
Spokane
Sun 8/30
7:05 am-10:42 am
1 stop3h 37m
$257
PortlandIdaho Falls
PDX - IDA
PDXIDA
Portland
Mon 8/31
10:30 am-1:24 pm
Nonstop1h 54m
Idaho Falls Fanning Field
Tue 9/8
3:57 pm-4:50 pm
Nonstop1h 53m
$257
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Portland to Idaho
Have a flexible travel schedule? Discover the best time to fly to Idaho from Portland with our price prediction graph.
PDX-BOI
PDX-GEG
PDX-IDA
PDX-JAC
PDX-SUN
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 Idaho
PDX-USID
PDX-BOI
PDX-GEG
PDX-IDA
PDX-JAC
What is the cheapest month to book a flight from Portland to Idaho?
Currently, July is the cheapest month in which you can book a flight from Portland to Idaho (average of $39). Flying from Portland to Idaho in January is currently the most expensive (average of $131). 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 ID?
Find hourly flight availability from Portland to Idaho. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 14, 2026.
Unlike in the evening, when flights are generally more expensive, you can save up to 26% on flights from Portland to Idaho by exploring options for tickets in the afternoon.
Weekly flight availability from Portland to Idaho
Explore weekly flight availability from Portland to Idaho. 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 14, 2026.
The most flights from PDX to USID are scheduled on a Monday (8 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (3 on average).
How much does it cost to fly round-trip from Portland to Idaho?
How far ahead should I book a flight from Portland to Idaho?
The best time to book flights from Portland to Idaho is 68 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 Idaho?
Use this chart to determine the cheapest time to fly round-trip from Portland to Idaho. Price data was last updated on July 11, 2026.
Travelers seeking maximum savings on their Portland to Idaho flight should consider departing on Thursday at noon when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Idaho
Get insights into the airlines that provide service to Idaho. 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 Idaho. Reviews last updated July 14, 2026.
Get a feel of what it's like to fly with Alaska Airlines,Delta, andHawaiian Airlines from Portland to Idaho 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.
Comfort
7.8
Crew
8.5
Food
7.1
Overall
7.9
Boarding
8.1
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Comfort
7.8
Crew
8.5
Food
7.1
Overall
7.9
Boarding
8.1
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Comfort
7.8
Crew
8.5
Food
7.1
Overall
7.9
Boarding
8.1
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Comfort
7.8
Crew
8.5
Food
7.1
Overall
7.9
Boarding
8.1
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Comfort
7.8
Crew
8.5
Food
7.1
Overall
7.9
Boarding
8.1
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 Idaho. 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 Idaho
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Complete your trip
Complete your trip to Idaho by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Portland to Idaho by cabin class
Find flights from Portland to Idaho, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Portland and Idaho flights
Browse other Portland and Idaho flight options. Last updated on July 14, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Portland to Idaho flights
Consider these flights traveling from Portland to Idaho.
Top 4 airlines flying from Portland to Idaho
Discover the top 4 airlines that operate flights from Portland to Idaho. 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 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$68 | Average$107 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$83 | Average$384 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$117 | Average$298 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$137 | Average$356 | FlexibilityNo cancel fee | On-time75% |