$74+ 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 8/17. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BOI
Aug 29 — Sep 51
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 30, 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 30, 2026.
This Traveloka deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Traveloka is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1210:49 am
PDX
- BOI
Nonstop1h 25m
Alaska Airlines
Sat 9/194:27 pm
BOI
- PDX
Nonstop1h 18m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$171
This Alaska Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 9/510:47 am
PDX
- BOI
Nonstop1h 25m
Alaska Airlines
Wed 9/94:27 pm
BOI
- PDX
Nonstop1h 18m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$177
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 9/55:30 am
PDX
- BOI
1 stop3h 25m
Delta
Wed 9/95:59 pm
BOI
- PDX
1 stop5h 32m
Delta
Deal found 7/29![Delta logo]()
$187
This Alaska Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 10/3110:44 am
PDX
- BOI
Nonstop1h 26m
Alaska Airlines
Sun 11/15:49 am
BOI
- PDX
Nonstop1h 31m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$188
This Expedia deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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.
Wed 9/210:47 am
PDX
- BOI
Nonstop1h 25m
Alaska Airlines
Sun 9/66:00 am
BOI
- PDX
Nonstop1h 20m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$189
This Traveloka deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Traveloka is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/99:33 pm
PDX
- BOI
Nonstop1h 22m
Alaska Airlines
Wed 9/166:00 am
BOI
- PDX
Nonstop1h 20m
Alaska Airlines
Deal found 7/26![Alaska Airlines logo]()
$192
This Booking.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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.
Sat 9/1210:30 am
PDX
- IDA
Nonstop1h 54m
Alaska Airlines
Sat 9/193:57 pm
IDA
- PDX
Nonstop1h 53m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$197
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 9/55:30 am
PDX
- BOI
1 stop3h 25m
Delta
Fri 9/115:59 pm
BOI
- PDX
1 stop5h 32m
Delta
Deal found 7/29![Delta logo]()
$197
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 9/126:20 am
PDX
- BOI
2 stops11h 20m
Southwest
Sat 9/1912:55 pm
BOI
- PDX
1 stop6h 35m
Southwest
Deal found 7/29![Southwest logo]()
$198
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 8/286:25 am
PDX
- BOI
1 stop6h 50m
Southwest
Tue 9/12:20 pm
BOI
- PDX
2 stops8h 00m
Southwest
Deal found 7/29![Southwest logo]()
$202
This Alaska Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 10/215:33 pm
PDX
- GEG
Nonstop1h 16m
Alaska Airlines
Sat 10/245:07 am
GEG
- PDX
Nonstop1h 13m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$207
This Delta deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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 8/275:08 pm
PDX
- IDA
1 stop4h 24m
Delta
Sun 8/306:00 am
IDA
- PDX
1 stop3h 37m
Delta
Deal found 7/28![Delta logo]()
$207
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 30, 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 30, 2026.
This Alaska Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 9/2510:30 am
PDX
- IDA
Nonstop1h 54m
Alaska Airlines
Mon 9/283:57 pm
IDA
- PDX
Nonstop1h 53m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$197
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 9/245:10 pm
PDX
- IDA
1 stop4h 12m
Delta
Tue 9/296:57 pm
IDA
- PDX
1 stop5h 43m
Delta
Deal found 7/29![Delta logo]()
$207
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 8/264:00 pm
PDX
- BOI
1 stop6h 10m
Southwest
Wed 9/211:40 am
BOI
- PDX
1 stop4h 45m
Southwest
Deal found 7/29![Southwest logo]()
$220
This United Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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 8/2710:50 am
PDX
- JAC
1 stop5h 59m
United Airlines
Thu 9/34:25 pm
JAC
- PDX
1 stop7h 29m
United Airlines
Deal found 7/28![United Airlines logo]()
$373
This Alaska Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 10/215:33 pm
PDX
- GEG
Nonstop1h 16m
Alaska Airlines
Sat 10/245:07 am
GEG
- PDX
Nonstop1h 13m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$207
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 10/211:00 pm
PDX
- GEG
1 stop3h 58m
Delta
Mon 10/265:10 am
GEG
- PDX
1 stop3h 36m
Delta
Deal found 7/29![Delta logo]()
$227
This Southwest deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1312:20 pm
PDX
- BOI
2 stops9h 50m
Southwest
Tue 10/201:25 pm
BOI
- PDX
2 stops9h 55m
Southwest
Deal found 7/27![Southwest logo]()
$227
This Alaska Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 9/510:47 am
PDX
- BOI
Nonstop1h 25m
Alaska Airlines
Fri 9/118:25 pm
BOI
- PDX
Nonstop1h 20m
Alaska Airlines
Deal found 7/26![Alaska Airlines logo]()
$207
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 9/267:00 am
PDX
- GEG
1 stop3h 30m
Delta
Sun 9/277:05 am
GEG
- PDX
1 stop4h 41m
Delta
Deal found 7/29![Delta logo]()
$227
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 8/226:20 am
PDX
- BOI
1 stop4h 55m
Southwest
Sun 8/303:30 pm
BOI
- PDX
1 stop4h 50m
Southwest
Deal found 7/29![Southwest logo]()
$230
This Alaska Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 10/215:33 pm
PDX
- GEG
Nonstop1h 16m
Alaska Airlines
Sun 10/255:07 am
GEG
- PDX
Nonstop1h 13m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$217
This Southwest deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 9/111:35 am
PDX
- BOI
2 stops9h 50m
Southwest
Sun 9/66:55 pm
BOI
- PDX
1 stop3h 35m
Southwest
Deal found 7/25![Southwest logo]()
$232
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 10/221:00 pm
PDX
- GEG
1 stop3h 58m
Delta
Mon 10/261:00 pm
GEG
- PDX
1 stop4h 04m
Delta
Deal found 7/29![Delta logo]()
$237
This Alaska Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 9/305:38 pm
PDX
- GEG
1 stop6h 15m
Alaska Airlines
Sat 10/35:07 am
GEG
- PDX
Nonstop1h 13m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$225
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 8/2511:35 am
PDX
- BOI
2 stops9h 50m
Southwest
Fri 8/281:55 pm
BOI
- PDX
1 stop5h 30m
Southwest
Deal found 7/29![Southwest logo]()
$235
This Southwest deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 9/109:20 am
PDX
- BOI
1 stop4h 45m
Southwest
Thu 9/104:55 pm
BOI
- PDX
1 stop7h 25m
Southwest
Deal found 7/26![Southwest logo]()
$237
This Alaska Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 10/172:48 pm
PDX
- BOI
Nonstop1h 19m
Alaska Airlines
Wed 10/215:59 am
BOI
- PDX
Nonstop1h 21m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$247
This Delta deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 10/205:15 pm
PDX
- IDA
1 stop3h 55m
Delta
Thu 10/226:00 am
IDA
- PDX
1 stop3h 50m
Delta
Deal found 7/25![Delta logo]()
$277
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/195:00 am
PDX
- JAC
1 stop6h 44m
United Airlines
Thu 10/225:35 pm
JAC
- PDX
1 stop7h 59m
United Airlines
Deal found 7/27![United Airlines logo]()
$377
This Southwest deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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 8/2511:35 am
PDX
- BOI
2 stops9h 50m
Southwest
Tue 9/12:20 pm
BOI
- PDX
2 stops6h 30m
Southwest
Deal found 7/28![Southwest logo]()
$245
This Alaska Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” 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 9/79:20 am
PDX
- GEG
1 stop3h 11m
Alaska Airlines
Sat 9/1210:37 am
GEG
- PDX
1 stop3h 53m
Alaska Airlines
Deal found 7/27![Alaska Airlines logo]()
$257
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 8/269:45 am
PDX
- IDA
1 stop3h 50m
Delta
Wed 9/26:00 am
IDA
- PDX
1 stop3h 37m
Delta
Deal found 7/29![Delta logo]()
$292
This Alaska Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 9/246:20 am
PDX
- GEG
1 stop3h 37m
Alaska Airlines
Fri 9/253:34 pm
GEG
- PDX
1 stop4h 16m
Alaska Airlines
Deal found 7/25![Alaska Airlines logo]()
$267
This Southwest deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” 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 9/511:20 am
PDX
- BOI
2 stops9h 45m
Southwest
Wed 9/93:40 pm
BOI
- PDX
1 stop7h 45m
Southwest
Deal found 7/27![Southwest logo]()
$267
This Delta deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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
Tue 8/257:00 pm
IDA
- PDX
1 stop5h 39m
Delta
Deal found 7/26![Delta logo]()
$312
This Delta deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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 8/289:45 am
PDX
- IDA
1 stop3h 50m
Delta
Sun 9/276:57 pm
IDA
- PDX
1 stop5h 43m
Delta
Deal found 7/28![Delta logo]()
$322
This United Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 9/1810:50 am
PDX
- JAC
1 stop5h 59m
United Airlines
Sun 9/204:25 pm
JAC
- PDX
1 stop7h 28m
United Airlines
Deal found 7/29![United Airlines logo]()
$568
This Delta deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 8/281:15 pm
PDX
- PIH
1 stop4h 08m
Delta
Sun 8/3011:44 am
PIH
- PDX
1 stop5h 19m
Delta
Deal found 7/26![Delta logo]()
$337
This Alaska Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 9/55:07 am
PDX
- SUN
1 stop3h 32m
Alaska Airlines
Tue 9/810:28 am
SUN
- PDX
1 stop25h 52m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$363
This United Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 9/412:45 pm
PDX
- JAC
1 stop6h 55m
United Airlines
Sun 9/64:25 pm
JAC
- PDX
1 stop5h 40m
United Airlines
Deal found 7/26![United Airlines logo]()
$638
Last-minute flights from Portland to IdahoDiscover last-minute flight deals from Portland to Idaho. Data last updated July 30, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Idaho. Data last updated July 30, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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 7/28![Allegiant Air logo]()
$212
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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 8/1012:25 pm
PDX
- IDA
Nonstop1h 40m
Allegiant Air
Fri 8/143:55 pm
IDA
- PDX
Nonstop1h 41m
Allegiant Air
Deal found 7/28![Allegiant Air logo]()
$221
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 8/264:00 pm
PDX
- BOI
1 stop6h 10m
Southwest
Wed 9/211:40 am
BOI
- PDX
1 stop4h 45m
Southwest
Deal found 7/29![Southwest logo]()
$220
This Delta deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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 8/275:08 pm
PDX
- IDA
1 stop4h 24m
Delta
Sun 8/306:00 am
IDA
- PDX
1 stop3h 37m
Delta
Deal found 7/28![Delta logo]()
$207
This Alaska Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” 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 8/2710:47 am
PDX
- BOI
Nonstop1h 34m
Alaska Airlines
Tue 9/18:25 pm
BOI
- PDX
Nonstop1h 20m
Alaska Airlines
Deal found 7/26![Alaska Airlines logo]()
$223
This Priceline deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 8/289:33 pm
PDX
- BOI
Nonstop1h 22m
Alaska Airlines
Tue 9/14:28 pm
BOI
- PDX
Nonstop1h 18m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$187
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 8/289:20 am
PDX
- BOI
1 stop4h 45m
Southwest
Tue 9/17:05 am
BOI
- PDX
1 stop6h 20m
Southwest
Deal found 7/29![Southwest logo]()
$197
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 8/285:35 am
PDX
- BOI
1 stop6h 40m
Southwest
Fri 8/284:55 pm
BOI
- PDX
1 stop7h 20m
Southwest
Deal found 7/29![Southwest logo]()
$207
This Expedia deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” 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.
Fri 8/287:00 am
PDX
- BOI
Nonstop1h 34m
Alaska Airlines
Mon 8/318:25 pm
BOI
- PDX
Nonstop1h 20m
Alaska Airlines
Deal found 7/27![Alaska Airlines logo]()
$217
This Alaska Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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 8/287:00 am
PDX
- BOI
Nonstop1h 34m
Alaska Airlines
Sun 8/306:00 am
BOI
- PDX
Nonstop1h 20m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$224
This Priceline deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 8/299:59 pm
PDX
- GEG
Nonstop1h 12m
Alaska Airlines
Sat 9/57:03 am
GEG
- PDX
1 stop9h 50m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$215
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 8/293:25 pm
PDX
- GEG
1 stop6h 10m
Delta
Sat 9/57:05 am
GEG
- PDX
1 stop5h 55m
Delta
Deal found 7/29![Delta logo]()
$217
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 30, 2026.
Search for one-way flight options from Portland to Idaho. Find affordable one-way fares based on user searches. Data last updated July 30, 2026.
This Super.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.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
Allegiant Air
Deal found 7/26![Allegiant Air logo]()
$74
This Super.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.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 7/26![Allegiant Air logo]()
$87
This Super.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.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
Deal found 7/29![Allegiant Air logo]()
$88
This Southwest deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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 10/234:10 pm
PDX
- BOI
1 stop6h 25m
Southwest
Deal found 7/28![Southwest logo]()
$104
This Super.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.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 7/28![Allegiant Air logo]()
$106
This Delta deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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 9/95:30 am
PDX
- GEG
1 stop3h 07m
Delta
Deal found 7/28![Delta logo]()
$109
This Southwest deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” 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 8/264:00 pm
PDX
- BOI
1 stop5h 25m
Southwest
Deal found 7/27![Southwest logo]()
$109
This CheapOair deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” 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.
Sat 8/2212:20 pm
PDX
- BOI
1 stop22h 09m
Frontier
Deal found 7/27![Frontier logo]()
$111
This Alaska Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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 9/268:14 am
PDX
- GEG
1 stop3h 23m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$113
This Southwest deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/202:15 pm
PDX
- BOI
2 stops7h 55m
Southwest
Deal found 7/26![Southwest logo]()
$114
This Trip.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” 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.
Fri 9/257:09 am
PDX
- GEG
1 stop5h 30m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$115
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 8/2812:25 pm
PDX
- GEG
1 stop4h 35m
Delta
Deal found 7/29![Delta logo]()
$119
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 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $171 (Traveloka) |
One-way from | $74 (Super.com) |
Popular in | July |
Cheapest in | April |
Average price | $387 |
Good round-trip deal | $237 or less |
Good one-way deal | $93 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 30, 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
PortlandIdaho Falls
PDX - IDA
PDXIDA
Portland
Fri 9/25
10:30 am-1:24 pm
Nonstop1h 54m
Idaho Falls Fanning Field
Mon 9/28
3:57 pm-4:50 pm
Nonstop1h 53m
$197
PortlandIdaho Falls
PDX - IDA
PDXIDA
Portland
Thu 9/24
5:10 pm-10:22 pm
1 stop4h 12m
Idaho Falls Fanning Field
Tue 9/29
6:57 pm-11:40 pm
1 stop5h 43m
$207
Quickest round-trip
PortlandSpokane
PDX - GEG
PDXGEG
Portland
Wed 10/21
5:33 pm-6:49 pm
Nonstop1h 16m
Spokane
Sat 10/24
5:07 am-6:20 am
Nonstop1h 13m
$207
PortlandBoise
PDX - BOI
PDXBOI
Portland
Sat 9/5
10:47 am-1:12 pm
Nonstop1h 25m
Boise Air Term. Gowen Fld
Fri 9/11
8:25 pm-8:45 pm
Nonstop1h 20m
$207
PortlandSpokane
PDX - GEG
PDXGEG
Portland
Wed 10/21
5:33 pm-6:49 pm
Nonstop1h 16m
Spokane
Sun 10/25
5:07 am-6:20 am
Nonstop1h 13m
$217
PortlandBoise
PDX - BOI
PDXBOI
Portland
Wed 8/26
4:00 pm-11:10 pm
1 stop6h 10m
Boise Air Term. Gowen Fld
Wed 9/2
11:40 am-3:25 pm
1 stop4h 45m
$220
PortlandSpokane
PDX - GEG
PDXGEG
Portland
Wed 9/30
5:38 pm-11:53 pm
1 stop6h 15m
Spokane
Sat 10/3
5:07 am-6:20 am
Nonstop1h 13m
$225
PortlandSpokane
PDX - GEG
PDXGEG
Portland
Wed 10/21
1:00 pm-4:58 pm
1 stop3h 58m
Spokane
Mon 10/26
5:10 am-8:46 am
1 stop3h 36m
$227
PortlandBoise
PDX - BOI
PDXBOI
Portland
Tue 10/13
12:20 pm-11:10 pm
2 stops9h 50m
Boise Air Term. Gowen Fld
Tue 10/20
1:25 pm-10:20 pm
2 stops9h 55m
$227
PortlandSpokane
PDX - GEG
PDXGEG
Portland
Sat 9/26
7:00 am-10:30 am
1 stop3h 30m
Spokane
Sun 9/27
7:05 am-11:46 am
1 stop4h 41m
$227
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-IDA
PDX-BOI
PDX-JAC
PDX-GEG
PDX-PIH
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-IDA
PDX-BOI
PDX-JAC
PDX-GEG
What is the cheapest month to book a flight from Portland to Idaho?
Currently, February is the cheapest month in which you can book a flight from Portland to Idaho (average of $226). Flying from Portland to Idaho in January is currently the most expensive (average of $358). 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 30, 2026.
Unlike in the morning, when flights are generally more expensive, you can save up to 27% 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 30, 2026.
The most flights from PDX to USID are scheduled on a Thursday (8 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).
How much does it cost to fly round-trip from Portland to Idaho?
Airfare is below average for this route at the moment.
Portland to Idaho flights typically cost between $233 and $407 in September.The cheapest round-trip price found within the last 5 days was $171 on Alaska Airlines (Sep 12-Sep 19).
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 25, 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 30, 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.
Overall
7.9
Entertainment
7.0
Crew
8.5
Comfort
7.8
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Overall
7.9
Entertainment
7.0
Crew
8.5
Comfort
7.8
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Overall
7.9
Entertainment
7.0
Crew
8.5
Comfort
7.8
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Overall
7.9
Entertainment
7.0
Crew
8.5
Comfort
7.8
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Overall
7.9
Entertainment
7.0
Crew
8.5
Comfort
7.8
Food
7.0
Boarding
8.1
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
See prices for flight routes from nearby airports that may be better suited for you.
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 30, 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 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$68 | Average$114 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$83 | Average$372 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$117 | Average$297 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$137 | Average$356 | FlexibilityNo cancel fee | On-time75% |