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Idaho

$192+ 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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — BOI
May 9 — May 161
Sat 5/9
Sat 5/16
1 adult, Economy
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Cheap 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 9, 2026.

This Delta deal was found by Cheapflights users on 4/8. 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.
Tue 5/55:21 am
PWM
-
GEG
1 stop9h 20m
Delta
Tue 5/57:38 pm
GEG
-
PWM
2 stops13h 27m
Delta
Deal found 4/8$408
This Delta deal was found by Cheapflights users on 4/7. 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.
Tue 5/1212:50 pm
PWM
-
BOI
2 stops13h 14m
Delta
Tue 5/2611:39 pm
BOI
-
PWM
2 stops10h 16m
Delta
Deal found 4/7$413
This Delta deal was found by Cheapflights users on 4/8. 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 5/25:21 am
PWM
-
GEG
1 stop9h 20m
Delta
Tue 5/57:38 pm
GEG
-
PWM
2 stops13h 27m
Delta
Deal found 4/8$416
This American Airlines deal was found by Cheapflights users on 4/5. 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 6/179:29 am
PWM
-
BOI
2 stops15h 00m
American Airlines
Tue 6/233:11 pm
BOI
-
PWM
1 stop7h 24m
American Airlines
Deal found 4/5$419
This Delta deal was found by Cheapflights users on 4/8. 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 5/25:21 am
PWM
-
GEG
1 stop9h 20m
Delta
Mon 5/47:38 pm
GEG
-
PWM
2 stops13h 27m
Delta
Deal found 4/8$424
This Delta deal was found by Cheapflights users on 4/8. 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 5/25:21 am
PWM
-
GEG
1 stop9h 20m
Delta
Sat 5/25:10 pm
GEG
-
PWM
2 stops28h 36m
Delta
Deal found 4/8$437
This American Airlines deal was found by Cheapflights users on 4/7. 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 5/196:00 am
PWM
-
GEG
2 stops11h 19m
American Airlines
Tue 5/262:08 pm
GEG
-
PWM
1 stop7h 27m
American Airlines
Deal found 4/7$441
This Delta deal was found by Cheapflights users on 4/8. 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 5/21:23 pm
PWM
-
GEG
2 stops10h 42m
Delta
Wed 5/65:30 am
GEG
-
PWM
2 stops16h 16m
Delta
Deal found 4/8$442
This United Airlines deal was found by Cheapflights users on 4/7. 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 5/123:23 pm
PWM
-
GEG
1 stop8h 53m
United Airlines
Tue 5/195:00 am
GEG
-
PWM
1 stop7h 41m
United Airlines
Deal found 4/7$445
This Delta deal was found by Cheapflights users on 4/8. 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.
Tue 5/55:21 am
PWM
-
GEG
1 stop9h 20m
Delta
Wed 5/65:30 am
GEG
-
PWM
2 stops16h 16m
Delta
Deal found 4/8$449
This Delta deal was found by Cheapflights users on 4/8. 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 5/25:21 am
PWM
-
GEG
1 stop9h 20m
Delta
Sun 5/310:40 pm
GEG
-
PWM
2 stops21h 44m
Delta
Deal found 4/8$450
This American Airlines deal was found by Cheapflights users on 4/8. 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 5/51:18 pm
PWM
-
IDA
2 stops12h 21m
American Airlines
Wed 5/137:48 am
IDA
-
PWM
2 stops13h 34m
American Airlines
Deal found 4/8$453

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 April 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$408
(Delta)

One-way from

$192
(American Airlines)

Popular in

July

Cheapest in

January

Average price

$433
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. 0% potential increase in price ($4 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
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 April 9, 2026.
Use the filters below to find and compare flights from Portland to Idaho that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandSpokane

PWM - GEG

PWMGEG

Portland

Sat 5/2

5:21 am-11:41 am

1 stop9h 20m

Spokane

Mon 5/4

7:38 pm-12:05 pm

2 stops13h 27m

$424

PortlandSpokane

PWM - GEG

PWMGEG

Portland

Sat 5/2

5:21 am-11:41 am

1 stop9h 20m

Spokane

Sat 5/2

5:10 pm-12:46 am

2 stops28h 36m

$437

PortlandSpokane

PWM - GEG

PWMGEG

Portland

Tue 5/19

6:00 am-2:19 pm

2 stops11h 19m

Spokane

Tue 5/26

2:08 pm-12:35 am

1 stop7h 27m

$441

PortlandSpokane

PWM - GEG

PWMGEG

Portland

Sat 5/2

1:23 pm-9:05 pm

2 stops10h 42m

Spokane

Sun 5/3

10:40 pm-11:24 pm

2 stops21h 44m

$455

PortlandBoise

PWM - BOI

PWMBOI

Portland

Tue 6/9

3:45 pm-12:25 am

2 stops10h 40m

Boise Air Term. Gowen Fld

Sun 6/14

7:50 pm-9:45 am

2 stops11h 55m

$471

PortlandIdaho Falls

PWM - IDA

PWMIDA

Portland

Sat 5/16

10:50 am-11:39 pm

2 stops14h 49m

Idaho Falls Fanning Field

Sat 5/23

12:44 pm-12:35 am

1 stop9h 51m

$473
Quickest round-trip

PortlandIdaho Falls

PWM - IDA

PWMIDA

Portland

Sat 5/16

3:23 pm-9:03 pm

1 stop7h 40m

Idaho Falls Fanning Field

Sat 5/23

12:30 pm-9:51 pm

1 stop7h 21m

$479

PortlandBoise

PWM - BOI

PWMBOI

Portland

Tue 5/12

2:05 pm-10:28 pm

1 stop10h 23m

Boise Air Term. Gowen Fld

Tue 5/26

11:39 pm-11:55 am

2 stops10h 16m

$486

PortlandJackson

PWM - JAC

PWMJAC

Portland

Thu 5/7

3:23 pm-8:58 pm

1 stop7h 35m

Jackson Hole

Tue 5/12

7:00 am-9:19 pm

2 stops12h 19m

$497

PortlandBoise

PWM - BOI

PWMBOI

Portland

Sat 5/2

11:34 am-7:33 pm

1 stop9h 59m

Boise Air Term. Gowen Fld

Tue 5/5

5:00 am-3:41 pm

1 stop8h 41m

$501

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/8

Showing 1-10 of 47 resultsSorted by cheapest first
1
2
3
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5

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, September is the cheapest month in which you can book a flight from Portland, Maine to Idaho (average of $216). Flying from Portland, Maine to Idaho in March is currently the most expensive (average of $347). 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.

How much does it cost to fly round-trip from Portland, Maine to Idaho?

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 9, 2026.
See what other customers who have flown with Southwest,Delta, andUnited 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
4,338 reviews

Comfort

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,338 reviews
Southwest
8.0
Very good
4,338 reviews

Comfort

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Delta
7.9
Good
8,392 reviews
Southwest
8.0
Very good
4,338 reviews

Comfort

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,554 reviews
Southwest
8.0
Very good
4,338 reviews

Comfort

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,560 reviews
Southwest
8.0
Very good
4,338 reviews

Comfort

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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 9h 20m. Fly via Delta, Southwest, or American Airlines to get the fastest option. The distance between Portland, Maine and Idaho is about 2261 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 - 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, September is the cheapest month in which you can book a flight from Portland, Maine to Idaho (average of $216). Flying from Portland, Maine to Idaho in March is currently the most expensive (average of $347). 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 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$312Average$452FlexibilityNo cancel feeOn-time71%
DeltaCheapest$339Average$419FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$352Average$447FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$356Average$640FlexibilityNo cancel feeOn-time69%

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