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$145+ 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 10/27. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — PWM
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap 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 September 11, 2025.

Round-trip from

$368
(American Airlines)

One-way from

$145
(United Airlines)

Popular in

April

Cheapest in

January

Average price

$527
From Boise Air Term. Gowen Fld to Portland
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One-way flight from Boise Air Term. Gowen Fld to Portland
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Highest demand for flights based on searches. 9% potential increase in price ($68 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($35 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/9. 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 10/1812:35 pmBOI - PWM
1 stop7h 09mUnited Airlines
Wed 10/226:14 amPWM - BOI
1 stop7h 25mUnited Airlines
Deal found 9/9$397
This United Airlines deal was found by Cheapflights users on 9/9. 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 9/239:52 amBOI - PWM
2 stops11h 11mUnited Airlines
Tue 9/306:14 amPWM - BOI
1 stop7h 25mUnited Airlines
Deal found 9/9$403
This Southwest deal was found by Cheapflights users on 9/10. 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.
Fri 11/78:10 pmBOI - PWM
2 stops13h 55mSouthwest
Tue 11/115:30 amPWM - BOI
2 stops11h 35mSouthwest
Deal found 9/10$428
This American Airlines deal was found by Cheapflights users on 9/9. 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 10/231:26 pmBOI - PWM
1 stop7h 19mAmerican Airlines
Tue 10/2812:11 pmPWM - BOI
2 stops12h 11mAmerican Airlines
Deal found 9/9$486
This United Airlines deal was found by Cheapflights users on 9/10. 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 11/72:40 pmBOI - PWM
2 stops21h 32mUnited Airlines
Tue 11/114:51 pmPWM - BOI
1 stop20h 48mUnited Airlines
Deal found 9/10$488
This American Airlines deal was found by Cheapflights users on 9/9. 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 10/221:26 pmBOI - PWM
1 stop7h 19mAmerican Airlines
Mon 10/271:05 pmPWM - BOI
2 stops11h 19mAmerican Airlines
Deal found 9/9$517
This American Airlines deal was found by Cheapflights users on 9/9. 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 9/231:07 pmBOI - PWM
1 stop7h 36mAmerican Airlines
Tue 9/306:01 amPWM - BOI
1 stop8h 26mAmerican Airlines
Deal found 9/9$522

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 September 11, 2025.
Use the filters below to find and compare flights from Boise to Portland that are best for you.

Fly from

Boise

Fly to

Portland

Route

Depart

Return

Price

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Wed 2/4

7:32 am-10:31 pm

2 stops12h 59m

Portland

Mon 2/9

12:20 pm-9:18 pm

2 stops10h 58m

$368

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Tue 9/23

9:52 am-11:03 pm

2 stops11h 11m

Portland

Tue 9/30

6:14 am-11:39 am

1 stop7h 25m

$403

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Fri 11/7

8:10 pm-12:05 pm

2 stops13h 55m

Portland

Tue 11/11

5:30 am-3:05 pm

2 stops11h 35m

$428

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Tue 3/3

5:40 am-11:49 pm

2 stops16h 09m

Portland

Thu 3/5

6:30 am-11:58 pm

2 stops19h 28m

$466

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Fri 11/7

2:40 pm-2:12 pm

2 stops21h 32m

Portland

Tue 11/11

4:51 pm-11:39 am

1 stop20h 48m

$488

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Tue 9/23

1:07 pm-10:43 pm

1 stop7h 36m

Portland

Tue 9/30

6:01 am-12:27 pm

1 stop8h 26m

$522

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Wed 2/4

7:25 am-11:30 pm

2 stops14h 05m

Portland

Mon 2/9

4:10 pm-10:57 pm

1 stop8h 47m

$563

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Tue 3/3

7:00 am-11:17 pm

2 stops14h 17m

Portland

Thu 3/5

4:48 pm-11:06 pm

1 stop8h 18m

$613

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Mon 10/27

7:00 pm-10:04 am

2 stops13h 04m

$145

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Mon 10/27

8:15 pm-11:15 am

2 stops13h 00m

$234

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 13 results
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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

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

Currently, January is the cheapest month in which you can book a flight from Boise to Portland, Maine (average of $296). Flying from Boise to Portland, Maine in July is currently the most expensive (average of $394). 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 BOI to PWM?

Find hourly flight availability from Boise to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

It’s optimal to fly from Boise to Portland, Maine in the afternoon. By choosing this option you can save up to 40% on the cost of your flight, compared to a flight in the morning.

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 September 11, 2025.
Read through reviews of airlines operating flights from Boise to Portland, such as Southwest, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,937 reviews
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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 American Airlines, United Airlines, and Southwest fly from Boise to Portland, Maine in about 11h 11m. The time it takes to get you to your destination can typically vary by up to 2h 44m. 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.Alternate airlines to your destination round-trip include Southwest and United Airlines. These flights start at 44% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Boise to Portland, Maine one-way?

    The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $145. However, be on the lookout for offers from Southwest and Delta, as they are both options that can get you from Boise to Portland, Maine for a low price.

  • 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.

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

    Currently, January is the cheapest month in which you can book a flight from Boise to Portland, Maine (average of $296). Flying from Boise to Portland, Maine in July is currently the most expensive (average of $394). 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 Portland?

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

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Boise to Portland

Discover the top 3 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$364Average$666FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$410Average$482FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$427Average$813FlexibilityNo cancel feeOn-time69%

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