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$149+ 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 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — PWM
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
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 junio 12, 2025.

Round-trip from

$297
(American Airlines)

One-way from

$149
(American Airlines)

Popular in

April

Cheapest in

January

Average price

$577
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 ($69 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in June 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 junio 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/111:12 pmBOI - PWM
1 stop8h 57mAmerican Airlines
lun. 9/156:00 amPWM - BOI
1 stop8h 32mAmerican Airlines
Deal found 6/10$297
This Southwest deal was found by Cheapflights users on 6/12. 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.
dom. 9/75:25 pmBOI - PWM
2 stops14h 25mSouthwest
mar. 9/163:40 pmPWM - BOI
2 stops9h 25mSouthwest
Deal found 6/12$374
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/911:40 pmBOI - PWM
2 stops10h 26mDelta
mar. 7/1512:51 pmPWM - BOI
2 stops13h 18mDelta
Deal found 6/10$448
This United Airlines deal was found by Cheapflights users on 6/10. 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.
mié. 7/912:39 pmBOI - PWM
1 stop7h 22mUnited Airlines
mar. 7/156:01 amPWM - BOI
2 stops12h 39mUnited Airlines
Deal found 6/10$494
This Mytrip deal was found by Cheapflights users on 6/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 7/105:44 pmBOI - PWM
2 stops21h 41mMultiple Airlines
dom. 7/2012:52 pmPWM - BOI
3 stops32h 00mMultiple Airlines
Deal found 6/11$725

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 junio 12, 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

jue. 9/11

1:12 pm-12:09 am

1 stop8h 57m

Portland

lun. 9/15

6:00 am-12:32 pm

1 stop8h 32m

$297

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

dom. 9/7

5:25 pm-9:50 am

2 stops14h 25m

Portland

mar. 9/16

3:40 pm-11:05 pm

2 stops9h 25m

$374

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

mié. 7/9

11:40 pm-12:06 pm

2 stops10h 26m

Portland

mar. 7/15

12:51 pm-12:09 am

2 stops13h 18m

$448

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

mié. 7/9

12:39 pm-10:01 pm

1 stop7h 22m

Portland

mar. 7/15

6:01 am-4:40 pm

2 stops12h 39m

$494

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

jue. 7/10

5:44 pm-5:25 pm

2 stops21h 41m

Portland

dom. 7/20

12:52 pm-6:52 pm

3 stops32h 00m

$725

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

mié. 9/17

1:17 pm-10:43 pm

1 stop7h 26m

$149

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

mar. 7/15

5:05 am-3:25 pm

2 stops8h 20m

$200

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

vie. 7/11

11:40 pm-12:05 pm

1 stop10h 25m

$240

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

mar. 7/15

7:15 pm-1:19 pm

3 stops16h 04m

$255

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

vie. 7/11

7:48 pm-8:12 pm

3 stops46h 24m

$431

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

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 junio 12, 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.

Rainfall in Portland by month

Plan your trip to Portland by taking into account the average rainfall totals by month.

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.

Temperature in Portland by month

Plan your trip to Portland by taking into account the average temperature totals by month.

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).

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 junio 12, 2025.
See what other customers who have flown with Southwest, Delta and United Airlines from Boise to Portland have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,287 reviews

Boarding

8.2

Food

7.1

Crew

8.6

Comfort

8.0

Overall

8.0

Entertainment

7.6

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
4,287 reviews
Southwest
8.0
Very good
4,287 reviews

Boarding

8.2

Food

7.1

Crew

8.6

Comfort

8.0

Overall

8.0

Entertainment

7.6

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
7,950 reviews
Southwest
8.0
Very good
4,287 reviews

Boarding

8.2

Food

7.1

Crew

8.6

Comfort

8.0

Overall

8.0

Entertainment

7.6

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
8,790 reviews
Southwest
8.0
Very good
4,287 reviews

Boarding

8.2

Food

7.1

Crew

8.6

Comfort

8.0

Overall

8.0

Entertainment

7.6

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
4,287 reviews

Boarding

8.2

Food

7.1

Crew

8.6

Comfort

8.0

Overall

8.0

Entertainment

7.6

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

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?

    American Airlines, at $297, was found to be the cheapest airline from Boise to Portland, Maine.Alternate airlines to your destination round-trip include Southwest and Delta. These flights start at 54% 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 $149. 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 Boise?

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

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Top 4 airlines flying from Boise to Portland

Discover the top 4 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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$156Average$452FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$350Average$673FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$410Average$477FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$435Average$811FlexibilityNo cancel feeOn-time69%

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