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$184+ 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
Apr 9 — Apr 161
Wed 4/9
Wed 4/16
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 April 4, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$351
(American Airlines)

One-way from

$184
(American Airlines)

Popular in

June

Cheapest in

September

Average price

$557
Provider with most accurate pricing for Portland-Boise Air Term. Gowen Fld flight deals.
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Provider most trusted by Cheapflights users for Portland-Boise Air Term. Gowen Fld flights.
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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. 15% potential increase in price ($113 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 4, 2025.

This American Airlines deal was found by Cheapflights users on 4/4. 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.
Wed 8/136:00 amPWM - BOI
1 stop8h 36mAmerican Airlines
Tue 8/191:17 pmBOI - PWM
1 stop7h 29mAmerican Airlines
Deal found 4/4$351
This Southwest deal was found by Cheapflights users on 4/3. 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.
Sat 5/312:40 pmPWM - GEG
2 stops12h 25mSouthwest
Tue 5/63:20 pmGEG - PWM
2 stops17h 10mSouthwest
Deal found 4/3$351
This Delta deal was found by Cheapflights users on 4/3. 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.
Thu 9/41:53 pmPWM - BOI
2 stops11h 36mDelta
Mon 9/811:30 pmBOI - PWM
1 stop10h 00mDelta
Deal found 4/3$375
This United Airlines deal was found by Cheapflights users on 4/3. 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.
Sat 4/264:15 pmPWM - BOI
1 stop8h 34mUnited Airlines
Sat 5/312:05 pmBOI - PWM
1 stop7h 11mUnited Airlines
Deal found 4/3$389
This Southwest deal was found by Cheapflights users on 4/3. 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 8/131:50 pmPWM - BOI
2 stops10h 35mSouthwest
Wed 8/206:00 amBOI - PWM
2 stops10h 20mSouthwest
Deal found 4/3$395
This United Airlines deal was found by Cheapflights users on 4/3. 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.
Sat 5/36:00 amPWM - GEG
3 stops20h 38mUnited Airlines
Tue 5/66:00 amGEG - PWM
2 stops14h 27mUnited Airlines
Deal found 4/3$469
This American Airlines deal was found by Cheapflights users on 4/3. 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 6/76:00 amPWM - GEG
1 stop10h 11mAmerican Airlines
Mon 6/166:00 amGEG - PWM
1 stop8h 43mAmerican Airlines
Deal found 4/3$472
This American Airlines deal was found by Cheapflights users on 4/3. 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.
Wed 7/235:55 amPWM - JAC
2 stops11h 26mAmerican Airlines
Tue 7/297:00 amJAC - PWM
2 stops13h 59mAmerican Airlines
Deal found 4/3$510
This Delta deal was found by Cheapflights users on 4/3. 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 5/35:32 amPWM - GEG
2 stops10h 33mDelta
Tue 5/612:45 pmGEG - PWM
1 stop8h 14mDelta
Deal found 4/3$584
This United Airlines deal was found by Cheapflights users on 4/3. 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.
Wed 7/234:56 pmPWM - JAC
3 stops22h 52mUnited Airlines
Tue 7/298:00 amJAC - PWM
2 stops13h 14mUnited Airlines
Deal found 4/3$648

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 April 4, 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

PortlandBoise

PWM - BOI

PWMBOI

Portland

Wed 8/13

6:00 am-12:36 pm

1 stop8h 36m

Boise Air Term. Gowen Fld

Tue 8/19

1:17 pm-10:46 pm

1 stop7h 29m

$351

PortlandSpokane

PWM - GEG

PWMGEG

Portland

Sat 5/3

12:40 pm-10:05 pm

2 stops12h 25m

Spokane

Tue 5/6

3:20 pm-11:30 am

2 stops17h 10m

$351

PortlandBoise

PWM - BOI

PWMBOI

Portland

Thu 9/4

1:53 pm-11:29 pm

2 stops11h 36m

Boise Air Term. Gowen Fld

Mon 9/8

11:30 pm-11:30 am

1 stop10h 00m

$375

PortlandBoise

PWM - BOI

PWMBOI

Portland

Sat 4/26

4:15 pm-10:49 pm

1 stop8h 34m

Boise Air Term. Gowen Fld

Sat 5/3

12:05 pm-9:16 pm

1 stop7h 11m

$389

PortlandBoise

PWM - BOI

PWMBOI

Portland

Wed 8/13

1:50 pm-10:25 pm

2 stops10h 35m

Boise Air Term. Gowen Fld

Wed 8/20

6:00 am-6:20 pm

2 stops10h 20m

$395

PortlandSpokane

PWM - GEG

PWMGEG

Portland

Sat 5/3

6:00 am-11:38 pm

3 stops20h 38m

Spokane

Tue 5/6

6:00 am-11:27 pm

2 stops14h 27m

$469

PortlandSpokane

PWM - GEG

PWMGEG

Portland

Sat 6/7

6:00 am-1:11 pm

1 stop10h 11m

Spokane

Mon 6/16

6:00 am-5:43 pm

1 stop8h 43m

$472

PortlandJackson

PWM - JAC

PWMJAC

Portland

Wed 7/23

5:55 am-3:21 pm

2 stops11h 26m

Jackson Hole

Tue 7/29

7:00 am-10:59 pm

2 stops13h 59m

$510

PortlandSpokane

PWM - GEG

PWMGEG

Portland

Sat 5/3

5:32 am-1:05 pm

2 stops10h 33m

Spokane

Tue 5/6

12:45 pm-11:59 pm

1 stop8h 14m

$584

PortlandJackson

PWM - JAC

PWMJAC

Portland

Wed 7/23

4:56 pm-1:48 pm

3 stops22h 52m

Jackson Hole

Tue 7/29

8:00 am-11:14 pm

2 stops13h 14m

$648

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/2

Showing 1-10 of 14 results
1
2

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 $419). 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 April 4, 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.

Rainfall in Idaho by month

Plan your trip to Idaho by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Idaho ranges from 0.2 - 1.6 inches per month. December is typically the wettest month, when rainfall can reach 1.6 in. August is typically the driest time to visit Idaho when rainfall is around 0.2 in.

Temperature in Idaho by month

Plan your trip to Idaho by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Idaho, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 30.2 F).

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 April 4, 2025.
Read through reviews of airlines operating flights from Portland to Idaho, such as Southwest, Delta and United Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,276 reviews

Comfort

8.0

Boarding

8.2

Entertainment

7.6

Food

7.1

Overall

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.0
Very good
4,276 reviews
Southwest
8.0
Very good
4,276 reviews

Comfort

8.0

Boarding

8.2

Entertainment

7.6

Food

7.1

Overall

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,901 reviews
Southwest
8.0
Very good
4,276 reviews

Comfort

8.0

Boarding

8.2

Entertainment

7.6

Food

7.1

Overall

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,618 reviews
Southwest
8.0
Very good
4,276 reviews

Comfort

8.0

Boarding

8.2

Entertainment

7.6

Food

7.1

Overall

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,276 reviews

Comfort

8.0

Boarding

8.2

Entertainment

7.6

Food

7.1

Overall

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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 American Airlines, with whom users have recently found tickets for as low as $184. However, be on the lookout for offers from Southwest and United 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 $419). 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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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 April 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$345Average$606FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$356Average$687FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$375Average$657FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$419Average$556FlexibilityNo cancel feeOn-time63%

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