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Idaho

$249+ 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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — BOI
Jan 25 — Feb 11
Sun 1/25
Sun 2/1
1 adult, Economy
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Cheap flight deals from Portland to Idaho

Best flights from Portland to Idaho
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 December 26, 2025.

This Delta deal was found by Cheapflights users on 12/26. 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.
Sun 1/252:35 pmPWM - GEG
2 stops12h 24mDelta
Sun 2/17:30 pmGEG - PWM
2 stops13h 33mDelta
Deal found 12/26$406
This United Airlines deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” 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 1/178:40 amPWM - BOI
2 stops15h 12mUnited Airlines
Wed 1/218:15 amBOI - PWM
2 stops13h 15mUnited Airlines
Deal found 12/23$447
This American Airlines deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” 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 1/107:00 amPWM - GEG
2 stops14h 49mAmerican Airlines
Fri 1/166:33 amGEG - PWM
2 stops13h 21mAmerican Airlines
Deal found 12/24$553
This Delta deal was found by Cheapflights users on 12/25. 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.
Thu 5/71:35 pmPWM - BOI
1 stop11h 03mDelta
Tue 5/1211:30 pmBOI - PWM
1 stop10h 48mDelta
Deal found 12/25$447
This United Airlines deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” 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 1/106:00 amPWM - JAC
1 stop8h 58mUnited Airlines
Wed 1/142:00 pmJAC - PWM
1 stop7h 30mUnited Airlines
Deal found 12/23$489
This American Airlines deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” 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 1/125:20 amPWM - GEG
2 stops16h 29mAmerican Airlines
Fri 1/166:33 amGEG - PWM
2 stops13h 21mAmerican Airlines
Deal found 12/24$553
This Delta deal was found by Cheapflights users on 12/25. 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.
Sun 3/1512:51 pmPWM - BOI
2 stops13h 03mDelta
Fri 3/207:30 pmBOI - PWM
2 stops14h 39mDelta
Deal found 12/25$509
This United Airlines deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” 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 1/246:00 amPWM - IDA
2 stops11h 31mUnited Airlines
Wed 1/284:19 pmIDA - PWM
2 stops14h 42mUnited Airlines
Deal found 12/23$512
This United Airlines deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” 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 1/176:00 amPWM - GEG
2 stops12h 21mUnited Airlines
Tue 1/2011:25 amGEG - PWM
1 stop24h 14mUnited Airlines
Deal found 12/23$516
This American Airlines deal was found by Cheapflights users on 12/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/95:20 amPWM - BOI
2 stops13h 55mAmerican Airlines
Tue 1/137:20 amBOI - PWM
2 stops13h 34mAmerican Airlines
Deal found 12/25$577
This Delta deal was found by Cheapflights users on 12/25. 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.
Fri 1/95:30 amPWM - BOI
1 stop9h 16mDelta
Tue 1/1310:39 amBOI - PWM
2 stops11h 47mDelta
Deal found 12/25$562
This United Airlines deal was found by Cheapflights users on 12/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/306:00 amPWM - JAC
1 stop8h 58mUnited Airlines
Tue 2/32:40 pmJAC - PWM
2 stops21h 51mUnited Airlines
Deal found 12/25$528
This Delta deal was found by Cheapflights users on 12/26. 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.
Sat 1/105:30 amPWM - GEG
1 stop9h 15mDelta
Wed 1/149:20 amGEG - PWM
2 stops12h 00mDelta
Deal found 12/26$562
This American Airlines deal was found by Cheapflights users on 12/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/306:00 amPWM - JAC
2 stops13h 01mAmerican Airlines
Tue 2/32:06 pmJAC - PWM
3 stops19h 59mAmerican Airlines
Deal found 12/25$638
This Delta deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” 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 1/125:30 amPWM - GEG
1 stop9h 15mDelta
Fri 1/166:30 amGEG - PWM
2 stops13h 52mDelta
Deal found 12/24$572
This Delta deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” 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 1/105:30 amPWM - GEG
1 stop9h 15mDelta
Fri 1/166:30 amGEG - PWM
2 stops13h 52mDelta
Deal found 12/24$572
This American Airlines deal was found by Cheapflights users on 12/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/155:38 pmPWM - BOI
1 stop21h 23mAmerican Airlines
Fri 3/206:33 pmBOI - PWM
2 stops15h 46mAmerican Airlines
Deal found 12/25$746
This United Airlines deal was found by Cheapflights users on 12/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/94:10 pmPWM - BOI
1 stop8h 47mUnited Airlines
Tue 1/1312:19 pmBOI - PWM
1 stop24h 20mUnited Airlines
Deal found 12/25$682

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 December 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$447
(United Airlines)

One-way from

$249
(Southwest)

Popular in

July

Cheapest in

August

Average price

$712
Provider with most accurate pricing for Portland-Boise Air Term. Gowen Fld flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Boise Air Term. Gowen Fld flights.
Search Deals
From Portland to Idaho
Search Deals
One-way flight from Portland to Idaho
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($29 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 26, 2025.
Use the filters below to find and compare flights from Portland to Idaho that are best for you.

Fly from

Portland

Fly to

Idaho

Route

Depart

Return

Price

PortlandSpokane

PWM - GEG

PWMGEG

Portland

Sun 1/25

2:35 pm-11:59 pm

2 stops12h 24m

Spokane

Sun 2/1

7:30 pm-12:03 pm

2 stops13h 33m

$406

PortlandBoise

PWM - BOI

PWMBOI

Portland

Sat 1/17

8:40 am-9:52 pm

2 stops15h 12m

Boise Air Term. Gowen Fld

Wed 1/21

8:15 am-11:30 pm

2 stops13h 15m

$447

PortlandBoise

PWM - BOI

PWMBOI

Portland

Thu 5/7

1:35 pm-10:38 pm

1 stop11h 03m

Boise Air Term. Gowen Fld

Tue 5/12

11:30 pm-12:18 pm

1 stop10h 48m

$447

PortlandJackson

PWM - JAC

PWMJAC

Portland

Sat 1/10

6:00 am-12:58 pm

1 stop8h 58m

Jackson Hole

Wed 1/14

2:00 pm-11:30 pm

1 stop7h 30m

$489

PortlandBoise

PWM - BOI

PWMBOI

Portland

Sun 3/15

12:51 pm-11:54 pm

2 stops13h 03m

Boise Air Term. Gowen Fld

Fri 3/20

7:30 pm-12:09 pm

2 stops14h 39m

$509

PortlandIdaho Falls

PWM - IDA

PWMIDA

Portland

Sat 1/24

6:00 am-3:31 pm

2 stops11h 31m

Idaho Falls Fanning Field

Wed 1/28

4:19 pm-9:01 am

2 stops14h 42m

$512

PortlandSpokane

PWM - GEG

PWMGEG

Portland

Sat 1/17

6:00 am-3:21 pm

2 stops12h 21m

Spokane

Tue 1/20

11:25 am-2:39 pm

1 stop24h 14m

$516

PortlandJackson

PWM - JAC

PWMJAC

Portland

Fri 1/30

6:00 am-12:58 pm

1 stop8h 58m

Jackson Hole

Tue 2/3

2:40 pm-2:31 pm

2 stops21h 51m

$528

PortlandSpokane

PWM - GEG

PWMGEG

Portland

Sat 1/10

7:00 am-6:49 pm

2 stops14h 49m

Spokane

Fri 1/16

6:33 am-10:54 pm

2 stops13h 21m

$553

PortlandSpokane

PWM - GEG

PWMGEG

Portland

Mon 1/12

5:20 am-6:49 pm

2 stops16h 29m

Spokane

Fri 1/16

6:33 am-10:54 pm

2 stops13h 21m

$553

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/24

Showing 1-10 of 26 results
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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.
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

What is the cheapest month to book a flight from Portland, Maine to Idaho?

Currently, April is the cheapest month in which you can book a flight from Portland, Maine to Idaho (average of $204). Flying from Portland, Maine to Idaho in June is currently the most expensive (average of $320). 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 PWM 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 December 26, 2025.

One of the essential ways to save on airfare from Portland, Maine to Idaho is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight at noon could potentially save you up to 51% on airfare.

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 December 26, 2025.
See what other customers who have flown with Southwest, Delta, and United 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.
Southwest
8.0
Very good
4,258 reviews

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,258 reviews
Southwest
8.0
Very good
4,258 reviews

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.9
Good
8,012 reviews
Southwest
8.0
Very good
4,258 reviews

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,115 reviews
Southwest
8.0
Very good
4,258 reviews

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,061 reviews
Southwest
8.0
Very good
4,258 reviews

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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.

  • What airport do you fly from for flights from Portland to Idaho?

    If you book a flight to Idaho from Portland, you will be flying from Portland, which is the city’s only airport. Portland (PWM) is located 2.9 mi from the center of Portland.

  • How long is the flight from Portland, Maine to Idaho?

    There are many flights that can get you from Portland, Maine to Idaho in 11h 03m. Fly via United Airlines, Delta, or American Airlines to get the fastest option. The distance between Portland, Maine and Idaho is about 2265 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Portland, Maine to Idaho?

    The most popular flight routes from Portland, Maine to Idaho are Portland - Jackson Hole, Portland - Boise Air Term. Gowen Fld and Portland - Idaho Falls Fanning Field.

  • Can I find deals for flights from Portland to Idaho that include hotel bookings?

    Yes. In addition to deals on Portland to Idaho flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Idaho?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Idaho.

  • Can I find deals for business class flights from Portland to Idaho?

    Yes. Cheapflights offers flight deals from Portland to Idaho by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland, Maine to Idaho?

    Currently, April is the cheapest month in which you can book a flight from Portland, Maine to Idaho (average of $204). Flying from Portland, Maine to Idaho in June is currently the most expensive (average of $320). 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.

See more FAQs

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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 December 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$312Average$451FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$356Average$449FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$356Average$582FlexibilityNo cancel feeOn-time69%
DeltaCheapest$365Average$476FlexibilityNo cancel feeOn-timeN/A

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