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

American Airlines, at $351, was found to be the cheapest airline from Boise to Portland, Maine.Alternate airlines to your destination round-trip include Delta and Southwest. These flights start at 46% 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 American Airlines, with whom users have recently found tickets for as low as $203. However, be on the lookout for offers from Delta and United Airlines, as they are both options that can get you from Boise to Portland, Maine for a low price.

What is the cheapest day to fly from Boise to Portland, Maine?

Travelers seeking maximum savings on their Boise to Portland, Maine flight should consider departing on Monday evenings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Portland, Maine ranges from 2.9 - 4.5 inches per month. November is typically the wettest month, when rainfall can reach 4.5 in. August is typically the driest time to visit Portland, Maine when rainfall is around 2.9 in.

If weather is an important factor for your trip to Portland, Maine, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

What are the most popular airlines that fly from Boise to Portland, Maine?

When booking a flight from Boise to Portland, Maine, you may want to consider flying on American Airlines, United Airlines or Southwest as they are the most popular for this route.

What is the cheapest day to fly round-trip from Boise to Portland, Maine?

It’s generally more expensive to depart on a Friday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

What is the cheapest month to fly from Boise to Portland, Maine?

Due to multiple factors, expect to potentially pay more when booking in April. For low rates, January can be a great choice for travel to Portland, Maine. Flights to Portland, Maine from Boise in January are about $652 on average during January, but can be found for as low as $430.

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.

$203+ Flights from Boise to Portland, ME

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Cheap flight deals from Boise to Portland

Round-trip from	$351 (American Airlines)
One-way from	$203 (American Airlines)
Popular in	April
Cheapest in	January
Average price	$584

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. 9% potential increase in price ($67 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($31 potential savings vs. average RT price).

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Average for round-trip flights in July 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 July 3, 2025.

Thu 9/41:07 pmBOI - PWM

1 stop7h 36mAmerican Airlines

Mon 9/86:00 amPWM - BOI

1 stop8h 27mAmerican Airlines

Deal found 7/2

$351

Thu 8/710:24 amBOI - PWM

2 stops12h 14mDelta

Tue 8/196:31 amPWM - BOI

2 stops12h 26mDelta

Deal found 7/3

$361

Mon 8/117:40 pmBOI - PWM

2 stops12h 10mSouthwest

Fri 8/158:25 amPWM - BOI

2 stops10h 35mSouthwest

Deal found 7/1

$388

Tue 8/2612:27 pmBOI - PWM

1 stop7h 32mUnited Airlines

Sat 8/306:14 amPWM - BOI

1 stop7h 17mUnited Airlines

Deal found 7/1

$454

Best flights from Boise to Portland
Discover carefully curated flight deals from Boise to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 3, 2025.

Thu 9/41:07 pmBOI - PWM

1 stop7h 36mAmerican Airlines

Mon 9/86:00 amPWM - BOI

1 stop8h 27mAmerican Airlines

Deal found 7/2

$351

Thu 8/710:24 amBOI - PWM

2 stops12h 14mDelta

Tue 8/196:31 amPWM - BOI

2 stops12h 26mDelta

Deal found 7/3

$361

Mon 8/117:40 pmBOI - PWM

2 stops12h 10mSouthwest

Fri 8/158:25 amPWM - BOI

2 stops10h 35mSouthwest

Deal found 7/1

$388

Tue 8/2612:27 pmBOI - PWM

1 stop7h 32mUnited Airlines

Sat 8/306:14 amPWM - BOI

1 stop7h 17mUnited Airlines

Deal found 7/1

$454

Last-minute flights from Boise to Portland
Discover last-minute flight deals from Boise to Portland. Data last updated July 3, 2025 and is based on user searches.

Wed 7/91:29 pmBOI - PWM

1 stop9h 09mDelta

Tue 7/155:00 pmPWM - BOI

2 stops8h 59mDelta

Deal found 7/1

$671

Wed 7/95:00 amBOI - PWM

2 stops15h 01mUnited Airlines

Sat 7/196:00 amPWM - BOI

2 stops11h 59mUnited Airlines

Deal found 7/2

$702

Wed 7/97:16 amBOI - PWM

1 stop8h 19mAmerican Airlines

Sat 7/196:15 amPWM - BOI

1 stop8h 30mAmerican Airlines

Deal found 7/1

$1,248

Thu 8/710:24 amBOI - PWM

2 stops12h 14mDelta

Tue 8/196:31 amPWM - BOI

2 stops12h 26mDelta

Deal found 7/3

$361

Fri 8/81:10 pmBOI - PWM

1 stop8h 49mAmerican Airlines

Tue 8/196:30 amPWM - BOI

1 stop7h 59mAmerican Airlines

Deal found 7/3

$415

Fri 8/87:48 pmBOI - PWM

3 stops37h 47mMultiple Airlines

Wed 8/208:07 pmPWM - BOI

3 stops23h 04mMultiple Airlines

Deal found 7/3

$680

Mon 8/117:40 pmBOI - PWM

2 stops12h 10mSouthwest

Fri 8/158:25 amPWM - BOI

2 stops10h 35mSouthwest

Deal found 7/1

$388

Tue 8/2612:27 pmBOI - PWM

1 stop7h 32mUnited Airlines

Sat 8/306:14 amPWM - BOI

1 stop7h 17mUnited Airlines

Deal found 7/1

$454

One-way flights from Boise to Portland
Search for one-way flight options from Boise to Portland. Find affordable one-way fares based on user searches. Data last updated July 3, 2025.

Fri 9/261:07 pmBOI - PWM

1 stop8h 52mAmerican Airlines

Deal found 6/30

$203

Fri 9/2611:35 pmBOI - PWM

2 stops12h 26mDelta

Deal found 6/30

$208

Fri 7/187:15 pmBOI - PWM

3 stops25h 59mUnited Airlines

Deal found 7/2

$384

Cheapflights Fare Finder

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

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

6:00 am-12:27 pm

1 stop8h 27m

$351

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Thu 8/7

10:24 am-12:38 am

2 stops12h 14m

Portland

Tue 8/19

6:31 am-4:57 pm

2 stops12h 26m

$361

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Mon 8/11

7:40 pm-9:50 am

2 stops12h 10m

Portland

Fri 8/15

8:25 am-5:00 pm

2 stops10h 35m

$388

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Tue 8/26

12:27 pm-9:59 pm

1 stop7h 32m

Portland

Sat 8/30

6:14 am-11:31 am

1 stop7h 17m

$454

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Fri 9/26

1:07 pm-11:59 pm

1 stop8h 52m

$203

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Fri 9/26

11:35 pm-2:01 pm

2 stops12h 26m

$208

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Fri 7/18

7:15 pm-11:14 pm

3 stops25h 59m

$384

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

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?

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

Read through reviews of airlines operating flights from Boise to Portland, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,266 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Southwest

8.0

Very good

4,266 reviews

Southwest

8.0

Very good

4,266 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Delta

8.0

Very good

7,982 reviews

Southwest

8.0

Very good

4,266 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

United Airlines

7.4

Good

8,861 reviews

Southwest

8.0

Very good

4,266 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

American Airlines

7.2

Good

10,000 reviews

Southwest

8.0

Very good

4,266 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Related info for your journey

What are the cheapest airlines flying from Boise to Portland, Maine round-trip?
American Airlines, at $351, was found to be the cheapest airline from Boise to Portland, Maine.Alternate airlines to your destination round-trip include Delta and Southwest. These flights start at 46% 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 American Airlines, with whom users have recently found tickets for as low as $203. However, be on the lookout for offers from Delta and United Airlines, 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

Brunswick

North Conway

Auburn

Conway

Lewiston

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Top 3 airlines flying from Boise to Portland

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$350	Average$678	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$410	Average$477	FlexibilityNo cancel fee	On-time63%
United Airlines	Cheapest$435	Average$808	FlexibilityNo cancel fee	On-time69%

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$203+ 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 9/26. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Boise to Portland with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Boise to Portland

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Boise to Portland

Cheapest flights from Boise to PortlandExplore 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 3, 2025.

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 3, 2025.

Cheapflights Fare Finder

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

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.

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?

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 July 3, 2025.

Reviews of airlines servicing Portland

Read through reviews of airlines operating flights from Boise to Portland, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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.

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

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

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

How can I find direct flights from Boise to Portland?

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

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

Traveling to a place near Boise?

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Alternative routes for Boise to Portland

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Boise to Portland

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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 3, 2025.