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$214+ 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 10/24. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — PWM
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
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 August 20, 2025.

Round-trip from

$383
(Southwest)

One-way from

$214
(American Airlines)

Popular in

April

Cheapest in

January

Average price

$718
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 ($67 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 August 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 August 20, 2025.

This Southwest deal was found by Cheapflights users on 8/17. 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 10/238:15 pmBOI - PWM
2 stops12h 55mSouthwest
Mon 10/272:40 pmPWM - BOI
2 stops11h 40mSouthwest
Deal found 8/17$383
This Southwest deal was found by Cheapflights users on 8/17. 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.
Tue 9/306:00 amBOI - PWM
2 stops10h 20mSouthwest
Tue 10/75:45 amPWM - BOI
2 stops12h 05mSouthwest
Deal found 8/17$387
This Delta deal was found by Cheapflights users on 8/17. 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 9/301:25 pmBOI - PWM
1 stop8h 46mDelta
Tue 10/71:46 pmPWM - BOI
2 stops12h 08mDelta
Deal found 8/17$442
This American Airlines deal was found by Cheapflights users on 8/17. 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 9/301:07 pmBOI - PWM
1 stop7h 36mAmerican Airlines
Tue 10/76:14 amPWM - BOI
1 stop8h 32mAmerican Airlines
Deal found 8/17$508
This American Airlines deal was found by Cheapflights users on 8/19. 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 9/41:07 pmBOI - PWM
1 stop7h 36mAmerican Airlines
Mon 9/86:01 amPWM - BOI
1 stop8h 26mAmerican Airlines
Deal found 8/19$563
This Delta deal was found by Cheapflights users on 8/19. 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 9/231:25 pmBOI - PWM
1 stop8h 46mDelta
Tue 9/306:00 amPWM - BOI
2 stops10h 15mDelta
Deal found 8/19$572
This Southwest deal was found by Cheapflights users on 8/18. 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 10/108:15 pmBOI - PWM
2 stops11h 40mSouthwest
Mon 10/135:45 amPWM - BOI
2 stops13h 20mSouthwest
Deal found 8/18$619
This United Airlines deal was found by Cheapflights users on 8/17. 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 10/2312:35 pmBOI - PWM
1 stop7h 09mUnited Airlines
Mon 10/277:22 pmPWM - BOI
2 stops16h 36mUnited Airlines
Deal found 8/17$621
This United Airlines deal was found by Cheapflights users on 8/18. 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 9/27:00 amBOI - PWM
1 stop6h 52mUnited Airlines
Sat 9/66:14 amPWM - BOI
1 stop7h 17mUnited Airlines
Deal found 8/18$627

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 August 20, 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

Thu 10/23

8:15 pm-11:10 am

2 stops12h 55m

Portland

Mon 10/27

2:40 pm-12:20 am

2 stops11h 40m

$383

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Tue 9/30

6:00 am-6:20 pm

2 stops10h 20m

Portland

Tue 10/7

5:45 am-3:50 pm

2 stops12h 05m

$387

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Tue 9/30

1:25 pm-12:11 am

1 stop8h 46m

Portland

Tue 10/7

1:46 pm-11:54 pm

2 stops12h 08m

$442

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Tue 9/30

1:07 pm-10:43 pm

1 stop7h 36m

Portland

Tue 10/7

6:14 am-12:46 pm

1 stop8h 32m

$508

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Thu 9/4

1:07 pm-10:43 pm

1 stop7h 36m

Portland

Mon 9/8

6:01 am-12:27 pm

1 stop8h 26m

$563

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Tue 9/23

1:25 pm-12:11 am

1 stop8h 46m

Portland

Tue 9/30

6:00 am-4:41 pm

2 stops12h 41m

$572

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Fri 10/10

8:15 pm-9:55 am

2 stops11h 40m

Portland

Mon 10/13

5:45 am-5:05 pm

2 stops13h 20m

$619

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Thu 10/23

12:35 pm-9:44 pm

1 stop7h 09m

Portland

Mon 10/27

7:22 pm-9:58 am

2 stops16h 36m

$621

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Fri 10/24

1:26 pm-10:45 pm

1 stop7h 19m

$214

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Fri 10/24

11:39 pm-1:58 pm

2 stops12h 19m

$219

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

Showing 1-10 of 14 results
1
2

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 August 20, 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 August 20, 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
4,246 reviews

Crew

8.6

Overall

8.0

Boarding

8.1

Food

7.0

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Overall

8.0

Boarding

8.1

Food

7.0

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,928 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Overall

8.0

Boarding

8.1

Food

7.0

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Overall

8.0

Boarding

8.1

Food

7.0

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

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 Southwest, Delta, and American Airlines fly from Boise to Portland, Maine in about 7h 36m. The time it takes to get you to your destination can typically vary by up to 5h 19m. 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.

  • 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 August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$364Average$666FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$410Average$482FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$427Average$879FlexibilityNo cancel feeOn-time69%

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