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Idaho

$168+ 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 6/14. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — BOI
Apr 29 — May 61
Tue 4/29
Tue 5/6
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 24, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$351
(Delta)

One-way from

$168
(Sun Country Air)

Popular in

July

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. 11% potential increase in price ($79 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 24, 2025.

This Delta deal was found by Cheapflights users on 4/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/96:00 amPWM - BOI
1 stop8h 31mDelta
Wed 7/161:43 pmBOI - PWM
1 stop8h 16mDelta
Deal found 4/23$351
This Delta deal was found by Cheapflights users on 4/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/96:00 amPWM - GEG
1 stop8h 19mDelta
Mon 6/1611:10 pmGEG - PWM
1 stop9h 40mDelta
Deal found 4/23$351
This Southwest deal was found by Cheapflights users on 4/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/710:55 amPWM - GEG
2 stops9h 40mSouthwest
Wed 6/186:50 amGEG - PWM
2 stops13h 35mSouthwest
Deal found 4/23$364
This Southwest deal was found by Cheapflights users on 4/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/182:00 pmPWM - BOI
2 stops12h 05mSouthwest
Mon 9/225:00 amBOI - PWM
2 stops10h 05mSouthwest
Deal found 4/23$399
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Wed 8/68:00 amPWM - GEG
2 stops12h 27mUnited Airlines
Sat 8/1611:37 amGEG - PWM
1 stop7h 24mUnited Airlines
Deal found 4/23$440
This American Airlines deal was found by Cheapflights users on 4/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/61:58 pmPWM - GEG
2 stops11h 57mAmerican Airlines
Sat 8/166:10 amGEG - PWM
1 stop8h 40mAmerican Airlines
Deal found 4/23$442
This American Airlines deal was found by Cheapflights users on 4/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/16:00 amPWM - JAC
1 stop8h 24mAmerican Airlines
Tue 7/227:00 amJAC - PWM
2 stops11h 24mAmerican Airlines
Deal found 4/23$465
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Fri 5/3011:43 amPWM - JAC
1 stop9h 19mUnited Airlines
Tue 6/37:50 amJAC - PWM
2 stops14h 07mUnited Airlines
Deal found 4/23$565
This Mytrip deal was found by Cheapflights users on 4/24. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/1512:40 pmPWM - BOI
2 stops22h 01mMultiple Airlines
Fri 6/209:36 amBOI - PWM
2 stops24h 21mMultiple Airlines
Deal found 4/24$585
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Thu 5/86:13 amPWM - BOI
1 stop8h 01mUnited Airlines
Mon 5/127:10 pmBOI - PWM
2 stops12h 46mUnited Airlines
Deal found 4/23$587
This Delta deal was found by Cheapflights users on 4/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/911:44 amPWM - JAC
2 stops11h 14mDelta
Thu 6/1211:40 amJAC - PWM
2 stops10h 46mDelta
Deal found 4/23$593
This American Airlines deal was found by Cheapflights users on 4/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/126:00 amPWM - BOI
1 stop8h 44mAmerican Airlines
Sat 6/211:15 pmBOI - PWM
1 stop7h 32mAmerican Airlines
Deal found 4/23$707

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 24, 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 7/9

6:00 am-12:31 pm

1 stop8h 31m

Boise Air Term. Gowen Fld

Wed 7/16

1:43 pm-11:59 pm

1 stop8h 16m

$351

PortlandSpokane

PWM - GEG

PWMGEG

Portland

Mon 6/9

6:00 am-11:19 am

1 stop8h 19m

Spokane

Mon 6/16

11:10 pm-11:50 am

1 stop9h 40m

$351

PortlandSpokane

PWM - GEG

PWMGEG

Portland

Sat 6/7

10:55 am-5:35 pm

2 stops9h 40m

Spokane

Wed 6/18

6:50 am-11:25 pm

2 stops13h 35m

$364

PortlandBoise

PWM - BOI

PWMBOI

Portland

Thu 9/18

2:00 pm-12:05 am

2 stops12h 05m

Boise Air Term. Gowen Fld

Mon 9/22

5:00 am-5:05 pm

2 stops10h 05m

$399

PortlandSpokane

PWM - GEG

PWMGEG

Portland

Wed 8/6

8:00 am-5:27 pm

2 stops12h 27m

Spokane

Sat 8/16

11:37 am-10:01 pm

1 stop7h 24m

$440

PortlandSpokane

PWM - GEG

PWMGEG

Portland

Wed 8/6

1:58 pm-10:55 pm

2 stops11h 57m

Spokane

Sat 8/16

6:10 am-5:50 pm

1 stop8h 40m

$442

PortlandJackson

PWM - JAC

PWMJAC

Portland

Tue 7/1

6:00 am-12:24 pm

1 stop8h 24m

Jackson Hole

Tue 7/22

7:00 am-8:24 pm

2 stops11h 24m

$465

PortlandJackson

PWM - JAC

PWMJAC

Portland

Fri 5/30

11:43 am-7:02 pm

1 stop9h 19m

Jackson Hole

Tue 6/3

7:50 am-11:57 pm

2 stops14h 07m

$565

PortlandBoise

PWM - BOI

PWMBOI

Portland

Sun 6/15

12:40 pm-8:41 am

2 stops22h 01m

Boise Air Term. Gowen Fld

Fri 6/20

9:36 am-11:57 am

2 stops24h 21m

$585

PortlandBoise

PWM - BOI

PWMBOI

Portland

Thu 5/8

6:13 am-12:14 pm

1 stop8h 01m

Boise Air Term. Gowen Fld

Mon 5/12

7:10 pm-9:56 am

2 stops12h 46m

$587

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

Showing 1-10 of 19 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 24, 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 24, 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
4,287 reviews

Food

7.1

Crew

8.6

Comfort

8.0

Boarding

8.2

Entertainment

7.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Southwest
8.0
Very good
4,287 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Crew

8.6

Comfort

8.0

Boarding

8.2

Entertainment

7.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Delta
8.0
Very good
7,920 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Crew

8.6

Comfort

8.0

Boarding

8.2

Entertainment

7.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
United Airlines
7.4
Good
8,685 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Crew

8.6

Comfort

8.0

Boarding

8.2

Entertainment

7.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Crew

8.6

Comfort

8.0

Boarding

8.2

Entertainment

7.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Sun Country Air
6.9
Okay
349 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Crew

8.6

Comfort

8.0

Boarding

8.2

Entertainment

7.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!

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 Sun Country Air, with whom users have recently found tickets for as low as $168. However, be on the lookout for offers from American Airlines 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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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 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$345Average$594FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$356Average$675FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$375Average$556FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$419Average$546FlexibilityNo cancel feeOn-time63%

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