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Idaho

$180+ 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 9/18. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — BOI
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
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 July 31, 2025.

Round-trip from

$325
(United Airlines)

One-way from

$180
(Delta)

Popular in

July

Cheapest in

September

Average price

$798
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. 6% potential increase in price ($41 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 31, 2025.

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.
Tue 10/146:14 amPWM - JAC
1 stop7h 06mUnited Airlines
Tue 10/2112:40 pmJAC - PWM
1 stop7h 04mUnited Airlines
Deal found 7/29$325
This Delta deal was found by Cheapflights users on 7/30. 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 8/306:00 amPWM - BOI
1 stop8h 24mDelta
Wed 9/31:30 pmBOI - PWM
1 stop8h 33mDelta
Deal found 7/30$333
This Delta deal was found by Cheapflights users on 7/30. 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 10/256:00 amPWM - GEG
1 stop8h 41mDelta
Tue 10/289:45 amGEG - PWM
2 stops9h 34mDelta
Deal found 7/30$338
This American Airlines deal was found by Cheapflights users on 7/31. 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 8/296:30 amPWM - BOI
1 stop7h 59mAmerican Airlines
Tue 9/91:07 pmBOI - PWM
1 stop7h 36mAmerican Airlines
Deal found 7/31$346
This Delta deal was found by Cheapflights users on 7/30. 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 11/46:55 pmJAC - PWM
2 stops12h 37mDelta
Deal found 7/30$349
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/166:01 amPWM - GEG
1 stop9h 43mAmerican Airlines
Sat 9/271:30 pmGEG - PWM
1 stop19h 19mAmerican Airlines
Deal found 7/28$408
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 9/1610:30 amPWM - GEG
2 stops14h 35mSouthwest
Sat 9/273:05 pmGEG - PWM
2 stops15h 35mSouthwest
Deal found 7/28$420
This United Airlines deal was found by Cheapflights users on 7/30. 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 10/256:14 amPWM - GEG
1 stop8h 28mUnited Airlines
Tue 10/285:10 amGEG - PWM
1 stop7h 38mUnited Airlines
Deal found 7/30$433
This United Airlines deal was found by Cheapflights users on 7/31. 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 11/73:20 pmPWM - BOI
1 stop8h 01mUnited Airlines
Tue 11/116:15 amBOI - PWM
1 stop7h 33mUnited Airlines
Deal found 7/31$446
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/144:14 pmPWM - JAC
2 stops22h 29mAmerican Airlines
Tue 10/211:10 pmJAC - PWM
2 stops21h 25mAmerican Airlines
Deal found 7/29$450
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.
Sat 8/236:14 amPWM - IDA
2 stops13h 09mUnited Airlines
Tue 8/265:00 amIDA - PWM
2 stops10h 42mUnited Airlines
Deal found 7/29$550
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.
Thu 8/142:00 pmPWM - BOI
2 stops12h 25mSouthwest
Sun 8/176:30 amBOI - PWM
2 stops13h 55mSouthwest
Deal found 7/29$584

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 31, 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

Tue 10/14

6:14 am-11:20 am

1 stop7h 06m

Jackson Hole

Tue 10/21

12:40 pm-9:44 pm

1 stop7h 04m

$325

PortlandBoise

PWM - BOI

PWMBOI

Portland

Sat 8/30

6:00 am-12:24 pm

1 stop8h 24m

Boise Air Term. Gowen Fld

Wed 9/3

1:30 pm-12:03 am

1 stop8h 33m

$333

PortlandSpokane

PWM - GEG

PWMGEG

Portland

Sat 10/25

6:00 am-11:41 am

1 stop8h 41m

Spokane

Tue 10/28

9:45 am-10:19 pm

2 stops9h 34m

$338

PortlandBoise

PWM - BOI

PWMBOI

Portland

Fri 8/29

6:30 am-12:29 pm

1 stop7h 59m

Boise Air Term. Gowen Fld

Tue 9/9

1:07 pm-10:43 pm

1 stop7h 36m

$346

PortlandJackson

PWM - JAC

PWMJAC

Portland

Sat 11/1

6:00 am-4:48 pm

2 stops12h 48m

Jackson Hole

Tue 11/4

6:55 pm-9:32 am

2 stops12h 37m

$349

PortlandSpokane

PWM - GEG

PWMGEG

Portland

Tue 9/16

6:01 am-12:44 pm

1 stop9h 43m

Spokane

Sat 9/27

1:30 pm-11:49 am

1 stop19h 19m

$408

PortlandSpokane

PWM - GEG

PWMGEG

Portland

Tue 9/16

10:30 am-10:05 pm

2 stops14h 35m

Spokane

Sat 9/27

3:05 pm-9:40 am

2 stops15h 35m

$420

PortlandSpokane

PWM - GEG

PWMGEG

Portland

Sat 10/25

6:14 am-11:42 am

1 stop8h 28m

Spokane

Tue 10/28

5:10 am-3:48 pm

1 stop7h 38m

$433

PortlandJackson

PWM - JAC

PWMJAC

Portland

Tue 10/14

4:14 pm-12:43 pm

2 stops22h 29m

Jackson Hole

Tue 10/21

1:10 pm-12:35 pm

2 stops21h 25m

$450

PortlandBoise

PWM - BOI

PWMBOI

Portland

Thu 8/28

6:14 am-11:31 am

1 stop7h 17m

Boise Air Term. Gowen Fld

Thu 9/4

12:27 pm-9:59 pm

1 stop7h 32m

$476

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 28 results
1
2
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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 July 31, 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 July 31, 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
4,246 reviews

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Delta
8.0
Very good
7,981 reviews
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,900 reviews
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

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.

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

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $180. However, be on the lookout for offers from Southwest and American Airlines, 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.

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Alternative routes for Portland to Idaho

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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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$312Average$452FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$356Average$637FlexibilityNo cancel feeOn-time69%
DeltaCheapest$387Average$575FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$394Average$467FlexibilityNo cancel feeOn-time63%

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