$198+ Cheap flights from Portland, ME (PWM) 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 7/3. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — BOI
Jul 6 — Jul 131
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 June 6, 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 June 6, 2026.
This Delta deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” 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 9/912:50 pm
PWM
- GEG
2 stops12h 45m
Delta
Wed 9/167:46 pm
GEG
- PWM
2 stops11h 59m
Delta
Deal found 6/3![Delta logo]()
$405
This United Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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 9/26:00 am
PWM
- BOI
1 stop7h 28m
United Airlines
Sat 9/512:24 pm
BOI
- PWM
1 stop6h 59m
United Airlines
Deal found 6/4![United Airlines logo]()
$410
This Southwest deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/27:45 am
PWM
- BOI
2 stops9h 05m
Southwest
Sat 9/56:10 am
BOI
- PWM
2 stops12h 50m
Southwest
Deal found 6/4![Southwest logo]()
$420
This Southwest deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” 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 9/177:40 am
PWM
- BOI
1 stop8h 30m
Southwest
Mon 9/2112:10 pm
BOI
- PWM
1 stop7h 20m
Southwest
Deal found 6/2![Southwest logo]()
$446
This American Airlines deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/46:19 am
PWM
- BOI
1 stop10h 03m
American Airlines
Fri 7/103:10 pm
BOI
- PWM
1 stop7h 33m
American Airlines
Deal found 6/6![American Airlines logo]()
$461
This American Airlines deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/96:00 am
PWM
- BOI
1 stop10h 20m
American Airlines
Mon 7/133:10 pm
BOI
- PWM
1 stop7h 33m
American Airlines
Deal found 6/1![American Airlines logo]()
$467
This Delta deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” 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 7/91:55 pm
PWM
- BOI
1 stop10h 02m
Delta
Mon 7/1311:10 pm
BOI
- PWM
2 stops13h 09m
Delta
Deal found 6/1![Delta logo]()
$472
This United Airlines deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/315:30 am
PWM
- IDA
2 stops13h 52m
United Airlines
Tue 11/35:57 pm
IDA
- PWM
2 stops12h 22m
United Airlines
Deal found 6/1![United Airlines logo]()
$489
This Southwest deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” 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 9/35:55 am
PWM
- GEG
2 stops12h 05m
Southwest
Mon 9/76:55 am
GEG
- PWM
2 stops12h 30m
Southwest
Deal found 6/2![Southwest logo]()
$490
This Southwest deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1012:50 pm
PWM
- GEG
2 stops11h 55m
Southwest
Sun 12/132:35 pm
GEG
- PWM
2 stops16h 20m
Southwest
Deal found 6/6![Southwest logo]()
$505
This Delta deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” 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 9/76:05 am
PWM
- GEG
1 stop8h 16m
Delta
Fri 9/117:55 am
GEG
- PWM
2 stops13h 04m
Delta
Deal found 6/3![Delta logo]()
$508
This United Airlines deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2711:17 am
PWM
- GEG
2 stops12h 52m
United Airlines
Wed 10/2811:30 am
GEG
- PWM
1 stop6h 57m
United Airlines
Deal found 6/1![United Airlines logo]()
$510
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 June 6, 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 June 6, 2026.
This Delta deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” 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 9/912:50 pm
PWM
- GEG
2 stops12h 45m
Delta
Wed 9/167:46 pm
GEG
- PWM
2 stops11h 59m
Delta
Deal found 6/3![Delta logo]()
$405
This United Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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 9/26:00 am
PWM
- BOI
1 stop7h 28m
United Airlines
Sat 9/510:36 am
BOI
- PWM
2 stops8h 47m
United Airlines
Deal found 6/4![United Airlines logo]()
$415
This Southwest deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” 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 9/177:40 am
PWM
- BOI
1 stop8h 30m
Southwest
Mon 9/2112:10 pm
BOI
- PWM
1 stop7h 20m
Southwest
Deal found 6/2![Southwest logo]()
$446
This American Airlines deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/185:30 am
PWM
- JAC
2 stops11h 27m
American Airlines
Tue 8/2510:53 am
JAC
- PWM
1 stop9h 07m
American Airlines
Deal found 6/1![American Airlines logo]()
$522
This United Airlines deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/315:30 am
PWM
- IDA
2 stops13h 52m
United Airlines
Tue 11/35:57 pm
IDA
- PWM
2 stops12h 22m
United Airlines
Deal found 6/1![United Airlines logo]()
$489
This Southwest deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” 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 9/35:55 am
PWM
- GEG
2 stops12h 05m
Southwest
Mon 9/76:55 am
GEG
- PWM
2 stops12h 30m
Southwest
Deal found 6/2![Southwest logo]()
$490
This Delta deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” 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 9/76:05 am
PWM
- GEG
1 stop8h 16m
Delta
Fri 9/117:00 am
GEG
- PWM
2 stops13h 11m
Delta
Deal found 6/1![Delta logo]()
$508
This American Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1010:47 am
PWM
- IDA
2 stops12h 33m
American Airlines
Mon 9/141:58 pm
IDA
- PWM
1 stop7h 49m
American Airlines
Deal found 6/4![American Airlines logo]()
$530
This United Airlines deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2711:17 am
PWM
- GEG
2 stops12h 52m
United Airlines
Wed 10/2811:30 am
GEG
- PWM
1 stop6h 57m
United Airlines
Deal found 6/1![United Airlines logo]()
$510
This Southwest deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/41:05 pm
PWM
- BOI
2 stops12h 05m
Southwest
Tue 8/117:05 am
BOI
- PWM
2 stops12h 05m
Southwest
Deal found 6/5![Southwest logo]()
$528
This United Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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 9/266:00 am
PWM
- BOI
1 stop8h 02m
United Airlines
Tue 9/296:50 pm
BOI
- PWM
2 stops13h 14m
United Airlines
Deal found 6/4![United Airlines logo]()
$525
This Southwest deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” 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 7/17:30 am
PWM
- GEG
1 stop7h 30m
Southwest
Sat 7/47:00 am
GEG
- PWM
2 stops10h 55m
Southwest
Deal found 6/3![Southwest logo]()
$559
This United Airlines deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/103:35 pm
PWM
- JAC
1 stop7h 27m
United Airlines
Wed 11/1110:51 am
JAC
- PWM
2 stops11h 08m
United Airlines
Deal found 6/3![United Airlines logo]()
$550
This Southwest deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” 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 7/13:45 pm
PWM
- GEG
2 stops11h 20m
Southwest
Tue 7/75:00 am
GEG
- PWM
2 stops13h 35m
Southwest
Deal found 6/2![Southwest logo]()
$573
This American Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/37:24 pm
PWM
- IDA
1 stop20h 29m
American Airlines
Fri 7/101:53 pm
IDA
- PWM
2 stops17h 52m
American Airlines
Deal found 6/4![American Airlines logo]()
$794
Last-minute flights from Portland to IdahoDiscover last-minute flight deals from Portland to Idaho. Data last updated June 6, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Idaho. Data last updated June 6, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/86:00 am
PWM
- JAC
1 stop7h 35m
United Airlines
Thu 6/1112:33 pm
JAC
- PWM
1 stop7h 18m
United Airlines
Deal found 6/5![United Airlines logo]()
$533
This Delta deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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 6/181:55 pm
PWM
- BOI
1 stop10h 40m
Delta
Sat 6/2011:59 am
BOI
- PWM
2 stops10h 53m
Delta
Deal found 6/4![Delta logo]()
$592
This Southwest deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” 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 6/243:45 pm
PWM
- BOI
2 stops10h 45m
Southwest
Mon 6/297:20 pm
BOI
- PWM
2 stops12h 35m
Southwest
Deal found 6/1![Southwest logo]()
$564
This Delta deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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 7/14:45 pm
PWM
- GEG
2 stops10h 14m
Delta
Sat 7/47:00 am
GEG
- PWM
2 stops11h 35m
Delta
Deal found 6/4![Delta logo]()
$547
This Southwest deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” 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 7/17:30 am
PWM
- GEG
1 stop7h 30m
Southwest
Sat 7/47:00 am
GEG
- PWM
2 stops10h 55m
Southwest
Deal found 6/3![Southwest logo]()
$559
This Southwest deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” 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 7/13:45 pm
PWM
- GEG
2 stops11h 20m
Southwest
Tue 7/75:00 am
GEG
- PWM
2 stops13h 35m
Southwest
Deal found 6/2![Southwest logo]()
$573
This American Airlines deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/46:19 am
PWM
- BOI
1 stop10h 03m
American Airlines
Fri 7/103:10 pm
BOI
- PWM
1 stop7h 33m
American Airlines
Deal found 6/6![American Airlines logo]()
$461
This Southwest deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/45:45 am
PWM
- BOI
2 stops11h 35m
Southwest
Fri 7/108:45 am
BOI
- PWM
2 stops13h 25m
Southwest
Deal found 6/6![Southwest logo]()
$519
This American Airlines deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/96:00 am
PWM
- BOI
1 stop10h 20m
American Airlines
Mon 7/133:10 pm
BOI
- PWM
1 stop7h 33m
American Airlines
Deal found 6/1![American Airlines logo]()
$467
This Delta deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” 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 7/91:55 pm
PWM
- BOI
1 stop10h 02m
Delta
Mon 7/1311:10 pm
BOI
- PWM
2 stops13h 09m
Delta
Deal found 6/1![Delta logo]()
$472
This Southwest deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” 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 7/95:35 am
PWM
- BOI
2 stops11h 10m
Southwest
Mon 7/137:20 pm
BOI
- PWM
2 stops12h 35m
Southwest
Deal found 6/1![Southwest logo]()
$513
This United Airlines deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” 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 7/166:00 am
PWM
- BOI
1 stop7h 32m
United Airlines
Sat 7/188:25 am
BOI
- PWM
2 stops13h 26m
United Airlines
Deal found 6/2![United Airlines logo]()
$546
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 June 6, 2026.
Search for one-way flight options from Portland to Idaho. Find affordable one-way fares based on user searches. Data last updated June 6, 2026.
This Delta deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/31:55 pm
PWM
- GEG
1 stop10h 39m
Delta
Deal found 6/5![Delta logo]()
$198
This United Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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 8/125:15 am
PWM
- BOI
2 stops12h 16m
United Airlines
Deal found 6/4![United Airlines logo]()
$203
This Delta deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2612:47 pm
PWM
- GEG
2 stops11h 26m
Delta
Deal found 6/6![Delta logo]()
$203
This American Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/247:14 am
PWM
- GEG
1 stop7h 21m
American Airlines
Deal found 6/4![American Airlines logo]()
$213
This Delta deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:05 am
PWM
- GEG
1 stop8h 16m
Delta
Deal found 6/5![Delta logo]()
$218
This American Airlines deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/225:56 am
PWM
- GEG
2 stops10h 41m
American Airlines
Deal found 6/3![American Airlines logo]()
$220
This American Airlines deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/146:00 am
PWM
- JAC
2 stops11h 45m
American Airlines
Deal found 6/3![American Airlines logo]()
$223
This Southwest deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/245:55 am
PWM
- GEG
2 stops12h 05m
Southwest
Deal found 6/6![Southwest logo]()
$223
This Delta deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” 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 8/226:05 am
PWM
- GEG
1 stop8h 16m
Delta
Deal found 6/3![Delta logo]()
$234
This Delta deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/254:47 pm
PWM
- GEG
2 stops10h 12m
Delta
Deal found 6/5![Delta logo]()
$244
This Southwest deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” 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 7/23:10 pm
PWM
- BOI
2 stops12h 00m
Southwest
Deal found 6/1![Southwest logo]()
$275
This United Airlines deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/183:31 pm
PWM
- JAC
1 stop7h 27m
United Airlines
Deal found 6/6![United Airlines logo]()
$325
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 June 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $410 (United Airlines) |
One-way from | $198 (Delta) |
Popular in | July |
Cheapest in | January |
Average price | $639 |
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 June 6, 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
PortlandSpokane
PWM - GEG
PWMGEG
Portland
Wed 9/9
12:50 pm-10:35 pm
2 stops12h 45m
Spokane
Wed 9/16
7:46 pm-10:45 am
2 stops11h 59m
$405
PortlandBoise
PWM - BOI
PWMBOI
Portland
Wed 9/2
6:00 am-11:28 am
1 stop7h 28m
Boise Air Term. Gowen Fld
Sat 9/5
10:36 am-9:23 pm
2 stops8h 47m
$415
Quickest round-trip
PortlandBoise
PWM - BOI
PWMBOI
Portland
Thu 9/17
7:40 am-2:10 pm
1 stop8h 30m
Boise Air Term. Gowen Fld
Mon 9/21
12:10 pm-9:30 pm
1 stop7h 20m
$446
PortlandIdaho Falls
PWM - IDA
PWMIDA
Portland
Sat 10/31
5:30 am-5:22 pm
2 stops13h 52m
Idaho Falls Fanning Field
Tue 11/3
5:57 pm-8:19 am
2 stops12h 22m
$489
PortlandSpokane
PWM - GEG
PWMGEG
Portland
Thu 9/3
5:55 am-3:00 pm
2 stops12h 05m
Spokane
Mon 9/7
6:55 am-10:25 pm
2 stops12h 30m
$490
PortlandSpokane
PWM - GEG
PWMGEG
Portland
Mon 9/7
6:05 am-11:21 am
1 stop8h 16m
Spokane
Fri 9/11
7:00 am-11:11 pm
2 stops13h 11m
$508
PortlandSpokane
PWM - GEG
PWMGEG
Portland
Tue 10/27
11:17 am-9:09 pm
2 stops12h 52m
Spokane
Wed 10/28
11:30 am-9:27 pm
1 stop6h 57m
$510
PortlandJackson
PWM - JAC
PWMJAC
Portland
Tue 8/18
5:30 am-2:57 pm
2 stops11h 27m
Jackson Hole
Tue 8/25
10:53 am-10:00 pm
1 stop9h 07m
$522
PortlandBoise
PWM - BOI
PWMBOI
Portland
Sat 9/26
6:00 am-12:02 pm
1 stop8h 02m
Boise Air Term. Gowen Fld
Tue 9/29
6:50 pm-10:04 am
2 stops13h 14m
$525
PortlandBoise
PWM - BOI
PWMBOI
Portland
Tue 8/4
1:05 pm-11:10 pm
2 stops12h 05m
Boise Air Term. Gowen Fld
Tue 8/11
7:05 am-9:10 pm
2 stops12h 05m
$528
Showing 1-10 of 37 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.
PWM-BOI
PWM-JAC
PWM-GEG
PWM-IDA
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
PWM-USID
PWM-BOI
PWM-JAC
PWM-GEG
PWM-IDA
How much does it cost to fly round-trip from Portland, Maine to Idaho?
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 June 6, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines from Portland to Idaho have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
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
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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 June 6, 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 June 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$312 | Average$535 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$332 | Average$402 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$352 | Average$457 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$456 | Average$640 | FlexibilityNo cancel fee | On-time69% |