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$289+ Cheap flights from Portland, ME to Boise (PWM - BOI)

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 2/12. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — BOI
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Portland to Boise

Cheapest flights from Portland to Boise
Explore the most affordable flight options available from Portland to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This American Airlines deal was found by Cheapflights users on 1/28. 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.
Sun 3/156:17 am
PWM
-
BOI
1 stop8h 43m
American Airlines
Fri 3/201:31 pm
BOI
-
PWM
1 stop8h 03m
American Airlines
Deal found 1/28$498
This American Airlines deal was found by Cheapflights users on 1/27. 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 5/236:26 am
PWM
-
BOI
1 stop9h 42m
American Airlines
Sun 5/316:44 am
BOI
-
PWM
1 stop8h 02m
American Airlines
Deal found 1/27$518
This American Airlines deal was found by Cheapflights users on 1/27. 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 5/216:26 am
PWM
-
BOI
1 stop9h 42m
American Airlines
Sat 5/306:00 pm
BOI
-
PWM
2 stops14h 27m
American Airlines
Deal found 1/27$523
This Southwest deal was found by Cheapflights users on 1/27. 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.
Sun 3/1512:35 pm
PWM
-
BOI
2 stops14h 50m
Southwest
Fri 3/208:15 pm
BOI
-
PWM
2 stops14h 15m
Southwest
Deal found 1/27$543
This Southwest deal was found by Cheapflights users on 1/28. 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.
Mon 3/92:50 pm
PWM
-
BOI
2 stops12h 30m
Southwest
Sat 3/145:35 pm
BOI
-
PWM
2 stops16h 20m
Southwest
Deal found 1/28$556
This Southwest deal was found by Cheapflights users on 1/27. 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 2/115:45 am
PWM
-
BOI
2 stops13h 05m
Southwest
Sun 2/157:45 am
BOI
-
PWM
2 stops13h 00m
Southwest
Deal found 1/27$577
This American Airlines deal was found by Cheapflights users on 1/28. 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.
Fri 5/226:26 am
PWM
-
BOI
1 stop9h 42m
American Airlines
Sun 5/316:44 am
BOI
-
PWM
1 stop8h 02m
American Airlines
Deal found 1/28$589
This Delta deal was found by Cheapflights users on 1/26. 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.
Fri 5/224:50 pm
PWM
-
BOI
2 stops9h 06m
Delta
Sun 5/3111:30 pm
BOI
-
PWM
2 stops10h 25m
Delta
Deal found 1/26$594

Find flight deals from Portland to Boise

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to Boise (BOI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$498
(American Airlines)

One-way from

$289
(Southwest)

Popular in

July

Cheapest in

August

Average price

$708
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 Boise Air Term. Gowen Fld
Search Deals
One-way flight from Portland to Boise Air Term. Gowen Fld
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($18 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Boise 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 January 29, 2026.
Use the filters below to find and compare flights from Portland to Boise that are best for you.

Fly from

Portland

Fly to

Boise

Route

Depart

Return

Price

PortlandBoise

PWM - BOI

PWMBOI

Portland

Sat 5/23

6:26 am-2:08 pm

1 stop9h 42m

Boise Air Term. Gowen Fld

Sun 5/31

6:44 am-4:46 pm

1 stop8h 02m

$518

PortlandBoise

PWM - BOI

PWMBOI

Portland

Thu 5/21

6:26 am-2:08 pm

1 stop9h 42m

Boise Air Term. Gowen Fld

Sat 5/30

6:00 pm-10:27 am

2 stops14h 27m

$523

PortlandBoise

PWM - BOI

PWMBOI

Portland

Sun 3/15

12:35 pm-1:25 am

2 stops14h 50m

Boise Air Term. Gowen Fld

Fri 3/20

8:15 pm-12:30 pm

2 stops14h 15m

$543

PortlandBoise

PWM - BOI

PWMBOI

Portland

Mon 3/9

2:50 pm-1:20 am

2 stops12h 30m

Boise Air Term. Gowen Fld

Sat 3/14

5:35 pm-11:55 am

2 stops16h 20m

$556

PortlandBoise

PWM - BOI

PWMBOI

Portland

Wed 2/11

5:45 am-4:50 pm

2 stops13h 05m

Boise Air Term. Gowen Fld

Sun 2/15

7:45 am-10:45 pm

2 stops13h 00m

$577

PortlandBoise

PWM - BOI

PWMBOI

Portland

Fri 5/22

6:26 am-2:08 pm

1 stop9h 42m

Boise Air Term. Gowen Fld

Sun 5/31

6:44 am-4:46 pm

1 stop8h 02m

$589

PortlandBoise

PWM - BOI

PWMBOI

Portland

Thu 2/12

2:25 pm-12:10 am

2 stops11h 45m

$289

PortlandBoise

PWM - BOI

PWMBOI

Portland

Thu 2/12

5:31 am-12:28 pm

1 stop8h 57m

$618

PortlandBoise

PWM - BOI

PWMBOI

Portland

Thu 2/12

11:01 am-11:59 pm

3 stops38h 58m

$968

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Compare providers for flights from Portland to Boise

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Boise in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Portland, Maine-Boise flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland, Maine-Boise flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland, Maine-Boise flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland, Maine-Boise flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland, Maine-Boise flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Portland to Boise

Have a flexible travel schedule? Discover the best time to fly to Boise 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 Boise

What is the cheapest month to book a flight from Portland, Maine to Boise?

Currently, April is the cheapest month in which you can book a flight from Portland, Maine to Boise (average of $204). Flying from Portland, Maine to Boise in June is currently the most expensive (average of $320). 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.

Reviews of airlines servicing Boise

Get insights into the airlines that provide service to Boise. 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 Boise. Reviews last updated January 29, 2026.
Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Portland to Boise by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,267 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,267 reviews
Southwest
8.0
Very good
4,267 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.9
Good
8,128 reviews
Southwest
8.0
Very good
4,267 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,215 reviews
Southwest
8.0
Very good
4,267 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,205 reviews
Southwest
8.0
Very good
4,267 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

Find useful and relevant information for your journey from Portland to Boise. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Portland, Maine to Boise?

    There are many flights that can get you from Portland, Maine to Boise in 9h 42m. Fly via American Airlines to get the fastest option. There are 2265 mi between Portland, Maine and Boise.

  • What are the cheapest airlines flying from Portland, Maine to Boise round-trip?

    According to our current data, United Airlines ($311), American Airlines ($312), and Southwest ($356) offers the cheapest pricing from Portland, Maine to Boise. You may be able to fly from Portland, Maine to Boise for 46% less than the average price by searching for these airlines.

  • Can I find deals for flights from Portland to Boise that include hotel bookings?

    Yes. In addition to deals on Portland to Boise flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Boise?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Boise.

  • Can I find deals for business class flights from Portland to Boise?

    Yes. Cheapflights offers flight deals from Portland to Boise 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 Boise?

    Currently, April is the cheapest month in which you can book a flight from Portland, Maine to Boise (average of $204). Flying from Portland, Maine to Boise in June is currently the most expensive (average of $320). 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

Traveling to a place near Boise?

Book flights to Boise if you plan to visit one of these locations
Ontario
Meridian
Nampa
Caldwell
McCall

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Top 4 airlines flying from Portland to Boise

Discover the top 4 airlines that operate flights from Portland to Boise. 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$311Average$582FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$312Average$451FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$356Average$449FlexibilityNo cancel feeOn-time63%
DeltaCheapest$365Average$475FlexibilityNo cancel feeOn-timeN/A

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