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Idaho

$325+ 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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — BOI
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from Portland to Idaho

Keep the following information in mind while searching for Portland to Idaho flight deals. Data was last updated September 16, 2025.

Round-trip from

$364
(Delta)

One-way from

$325
(United Airlines)

Popular in

July

Cheapest in

August

Average price

$452
From Portland to Idaho
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One-way flight from Portland to Idaho
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Highest demand for flights based on searches. 4% potential increase in price ($24 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Portland to Idaho

Cheapest flights from Portland to Idaho
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 September 16, 2025.

This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” 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 11/16:00 amPWM - JAC
2 stops12h 48mDelta
Tue 11/47:30 amJAC - PWM
2 stops12h 49mDelta
Deal found 9/15$364
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/286:14 amPWM - JAC
1 stop8h 15mAmerican Airlines
Tue 11/41:06 pmJAC - PWM
3 stops20h 40mAmerican Airlines
Deal found 9/14$381
This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/256:30 amPWM - BOI
2 stops19h 24mDelta
Tue 10/285:42 amBOI - PWM
2 stops15h 27mDelta
Deal found 9/14$410
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/13:20 pmPWM - JAC
1 stop7h 17mUnited Airlines
Tue 11/47:00 amJAC - PWM
1 stop6h 48mUnited Airlines
Deal found 9/15$429
This Southwest deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” 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 10/2112:00 pmPWM - GEG
2 stops13h 25mSouthwest
Tue 10/285:25 amGEG - PWM
2 stops11h 30mSouthwest
Deal found 9/15$432
This Southwest deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/232:40 pmPWM - BOI
2 stops11h 40mSouthwest
Mon 10/278:15 pmBOI - PWM
2 stops13h 00mSouthwest
Deal found 9/14$435
This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/231:27 pmPWM - BOI
1 stop11h 02mDelta
Mon 10/277:45 pmBOI - PWM
2 stops14h 15mDelta
Deal found 9/14$447
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” 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 10/256:30 amPWM - GEG
2 stops16h 16mDelta
Tue 10/285:24 pmGEG - PWM
2 stops17h 34mDelta
Deal found 9/15$456
This American Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/256:19 amPWM - GEG
1 stop9h 01mAmerican Airlines
Tue 10/286:34 amGEG - PWM
2 stops13h 14mAmerican Airlines
Deal found 9/13$473
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/236:14 amPWM - BOI
1 stop8h 32mAmerican Airlines
Mon 10/271:26 pmBOI - PWM
1 stop7h 19mAmerican Airlines
Deal found 9/14$493
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” 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 10/284:51 pmPWM - IDA
2 stops18h 57mUnited Airlines
Sat 11/17:00 amIDA - PWM
1 stop6h 48mUnited Airlines
Deal found 9/15$496
This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” 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 10/286:14 amPWM - JAC
1 stop8h 15mAmerican Airlines
Sun 11/21:11 pmJAC - PWM
3 stops20h 35mAmerican Airlines
Deal found 9/15$507

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 September 16, 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

PortlandJackson

PWM - JAC

PWMJAC

Portland

Sat 11/1

6:00 am-4:48 pm

2 stops12h 48m

Jackson Hole

Tue 11/4

7:30 am-10:19 pm

2 stops12h 49m

$364

PortlandJackson

PWM - JAC

PWMJAC

Portland

Tue 10/28

6:14 am-12:29 pm

1 stop8h 15m

Jackson Hole

Tue 11/4

1:06 pm-11:46 am

2 stops20h 40m

$397

PortlandBoise

PWM - BOI

PWMBOI

Portland

Sat 10/25

6:30 am-11:54 pm

2 stops19h 24m

Boise Air Term. Gowen Fld

Tue 10/28

3:00 pm-1:06 pm

2 stops20h 06m

$410

PortlandJackson

PWM - JAC

PWMJAC

Portland

Sat 11/1

3:20 pm-8:37 pm

1 stop7h 17m

Jackson Hole

Tue 11/4

7:00 am-3:48 pm

1 stop6h 48m

$429

PortlandSpokane

PWM - GEG

PWMGEG

Portland

Tue 10/21

12:00 pm-10:25 pm

2 stops13h 25m

Spokane

Tue 10/28

5:25 am-7:55 pm

2 stops11h 30m

$432

PortlandJackson

PWM - JAC

PWMJAC

Portland

Wed 1/21

9:00 am-8:42 pm

2 stops13h 42m

Jackson Hole

Wed 2/4

7:00 am-11:30 pm

2 stops14h 30m

$432

PortlandBoise

PWM - BOI

PWMBOI

Portland

Thu 10/23

2:40 pm-12:20 am

2 stops11h 40m

Boise Air Term. Gowen Fld

Mon 10/27

8:15 pm-11:15 am

2 stops13h 00m

$435

PortlandSpokane

PWM - GEG

PWMGEG

Portland

Sat 10/25

6:30 am-7:46 pm

2 stops16h 16m

Spokane

Tue 10/28

5:24 pm-1:58 pm

2 stops17h 34m

$456

PortlandSpokane

PWM - GEG

PWMGEG

Portland

Sat 10/25

6:19 am-12:20 pm

1 stop9h 01m

Spokane

Tue 10/28

6:34 am-10:48 pm

2 stops13h 14m

$473

PortlandBoise

PWM - BOI

PWMBOI

Portland

Thu 10/23

6:14 am-12:46 pm

1 stop8h 32m

Boise Air Term. Gowen Fld

Mon 10/27

1:26 pm-10:45 pm

1 stop7h 19m

$493

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 27 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, October is the cheapest month in which you can book a flight from Portland, Maine to Idaho (average of $314). Flying from Portland, Maine to Idaho in June is currently the most expensive (average of $398). 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 September 16, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portland, Maine to Idaho as you normally would.

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 September 16, 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
4,242 reviews

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,957 reviews
Southwest
8.0
Very good
4,242 reviews

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,924 reviews
Southwest
8.0
Very good
4,242 reviews

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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 7h 17m. Fly via Delta, American Airlines, or United Airlines to get the fastest option. The distance between Portland, Maine and Idaho is about 2000 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Portland, Maine to Idaho one-way?

    The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $325. However, be on the lookout for offers from American Airlines and Delta, as they are both options that can get you from Portland, Maine to Idaho for a low price.

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

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

  • 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, October is the cheapest month in which you can book a flight from Portland, Maine to Idaho (average of $314). Flying from Portland, Maine to Idaho in June is currently the most expensive (average of $398). 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$312Average$434FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$356Average$609FlexibilityNo cancel feeOn-time69%
DeltaCheapest$365Average$562FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$394Average$467FlexibilityNo cancel feeOn-time63%

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