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$187+ Cheap flights from Boise to Portland, ME (BOI - PWM)

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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — PWM
Aug 24 — Aug 311
Mon 8/24
Mon 8/31
1 adult, Economy
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Cheap flight deals from Boise to Portland

Cheapest flights from Boise to Portland
Explore the most affordable flight options available from Boise to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 25, 2026.

This United Airlines deal was found by Cheapflights users on 7/23. 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.
Mon 8/2412:24 pm
BOI
-
PWM
1 stop6h 59m
United Airlines
Wed 8/266:03 am
PWM
-
BOI
1 stop7h 25m
United Airlines
Deal found 7/23$363
This United Airlines deal was found by Cheapflights users on 7/21. 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 8/1812:24 pm
BOI
-
PWM
1 stop6h 59m
United Airlines
Tue 8/252:38 pm
PWM
-
BOI
2 stops10h 02m
United Airlines
Deal found 7/21$368
This United Airlines deal was found by Cheapflights users on 7/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/265:00 am
BOI
-
PWM
2 stops11h 29m
United Airlines
Mon 8/316:03 am
PWM
-
BOI
1 stop7h 25m
United Airlines
Deal found 7/24$374
This Delta deal was found by Cheapflights users on 7/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/191:33 pm
BOI
-
PWM
1 stop8h 03m
Delta
Sat 10/316:00 am
PWM
-
BOI
1 stop9h 26m
Delta
Deal found 7/24$379
This American Airlines deal was found by Cheapflights users on 7/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:30 am
BOI
-
PWM
2 stops11h 08m
American Airlines
Tue 9/295:30 am
PWM
-
BOI
2 stops13h 33m
American Airlines
Deal found 7/24$380
This Delta deal was found by Cheapflights users on 7/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1911:35 pm
BOI
-
PWM
2 stops11h 37m
Delta
Thu 10/296:00 am
PWM
-
BOI
1 stop9h 26m
Delta
Deal found 7/24$384
This United Airlines deal was found by Cheapflights users on 7/23. 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.
Tue 9/2212:28 pm
BOI
-
PWM
1 stop6h 55m
United Airlines
Tue 9/296:00 am
PWM
-
BOI
1 stop7h 28m
United Airlines
Deal found 7/23$385
This Delta deal was found by Cheapflights users on 7/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/191:33 pm
BOI
-
PWM
1 stop8h 03m
Delta
Fri 10/303:00 pm
PWM
-
BOI
2 stops10h 59m
Delta
Deal found 7/24$386

Find flight deals from Boise to Portland

Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) to Portland (PWM). 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 July 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$363
(United Airlines)

One-way from

$187
(United Airlines)

Popular in

January

Cheapest in

June

Average price

$591
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Portland flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Portland flights.
Search Deals
From Boise Air Term. Gowen Fld to Portland
Search Deals
One-way flight from Boise Air Term. Gowen Fld to Portland
Search Deals
Highest demand for flights based on searches. 26% potential increase in price ($278 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($49 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boise to Portland 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 25, 2026.
Use the filters below to find and compare flights from Boise to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Wed 8/26

5:00 am-6:29 pm

2 stops11h 29m

Portland

Mon 8/31

6:03 am-11:28 am

1 stop7h 25m

$374

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Mon 10/19

1:33 pm-11:36 pm

1 stop8h 03m

Portland

Thu 10/29

6:00 am-1:26 pm

1 stop9h 26m

$379

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Sat 8/15

6:44 am-10:00 pm

2 stops13h 16m

Portland

Wed 8/19

1:30 pm-10:11 pm

2 stops10h 41m

$405
Quickest round-trip

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Thu 8/20

12:24 pm-9:23 pm

1 stop6h 59m

Portland

Tue 8/25

6:00 am-11:28 am

1 stop7h 28m

$411

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Thu 8/20

12:24 pm-9:23 pm

1 stop6h 59m

Portland

Thu 8/27

3:37 pm-9:37 pm

1 stop8h 00m

$443

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Tue 10/20

1:33 pm-11:36 pm

1 stop8h 03m

Portland

Thu 10/29

6:00 am-1:26 pm

1 stop9h 26m

$459

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Tue 10/20

1:33 pm-11:36 pm

1 stop8h 03m

Portland

Sat 10/31

10:00 am-6:36 pm

2 stops10h 36m

$464

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Tue 10/20

1:33 pm-11:36 pm

1 stop8h 03m

Portland

Fri 10/30

3:00 pm-11:59 pm

2 stops10h 59m

$466

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Sat 10/31

12:37 pm-9:51 pm

1 stop7h 14m

Portland

Wed 11/4

3:23 pm-9:32 pm

1 stop8h 09m

$473
Cheapest one-way

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Tue 9/22

7:05 pm-9:08 am

2 stops12h 03m

$187

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/23

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

Compare providers for flights from Boise to Portland

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 Boise to Portland in July.
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 Boise-Portland, Maine flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boise-Portland, Maine flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boise-Portland, Maine flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boise-Portland, Maine 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 Boise-Portland, Maine 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 Boise to Portland

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

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

Airfare is below average for this route at the moment.

Boise to Portland, Maine flights typically cost between $502 and $758 in August.
The cheapest round-trip price found within the last 5 days was $363 on United Airlines (Aug 24-Aug 26).

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. 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 Portland. Reviews last updated July 25, 2026.
Read through reviews of airlines operating flights from Boise to Portland, such as United Airlines and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,034 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.4

Food

6.6

Entertainment

7.1

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this
United Airlines
7.4
Good
10,034 reviews
United Airlines
7.4
Good
10,034 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.4

Food

6.6

Entertainment

7.1

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this
American Airlines
7.1
Good
11,848 reviews
United Airlines
7.4
Good
10,034 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.4

Food

6.6

Entertainment

7.1

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this

Related info for your journey

Find useful and relevant information for your journey from Boise to Portland. 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 Boise to Portland, Maine?

    Airlines like United Airlines and American Airlines fly from Boise to Portland, Maine in about 11h 29m. The time it takes to get you to your destination can typically vary by up to 1h 47m. The distance from Boise to Portland, Maine is about 2265 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    American Airlines, at $364, was found to be the cheapest airline from Boise to Portland, Maine. An alternate airline flying to your destination would be United Airlines. These flights start at 53% lower than the current average price 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Boise to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
North Conway
Lewiston
Brunswick
Conway

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Boise to Portland

Discover the top 2 airlines that operate flights from Boise to Portland. 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 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$364Average$637FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$521Average$806FlexibilityNo cancel feeOn-time69%

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