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Cheap flights from Portland, Maine to Boise from $234

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland, Maine to Boise departing on 6/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Portland, Maine to Boise

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
12:55 pm - 9:44 pm
PWM
-
BOI
10h 49m
2 stops
Delta Logo
11:39 pm - 1:58 pm
BOI
-
PWM
12h 19m
2 stops
$409Delta
Thu, May 14 - Mon, May 18
Delta Logo
2:05 pm - 10:28 pm
PWM
-
BOI
10h 23m
1 stop
Delta Logo
11:39 pm - 1:58 pm
BOI
-
PWM
12h 19m
2 stops
$438Delta
Thu, May 14 - Mon, May 18
Southwest Logo
3:45 pm - 12:25 am
PWM
-
BOI
10h 40m
2 stops
Southwest Logo
8:20 pm - 9:45 am
BOI
-
PWM
11h 25m
2 stops
$471Southwest
Tue, Jun 9 - Sun, Jun 14
Southwest Logo
7:40 am - 5:15 pm
PWM
-
BOI
11h 35m
1 stop
Southwest Logo
8:45 am - 10:10 pm
BOI
-
PWM
11h 25m
1 stop
$478Southwest
Thu, Jun 25 - Fri, Jul 3
Southwest Logo
3:45 pm - 12:25 am
PWM
-
BOI
10h 40m
2 stops
Southwest Logo
7:50 pm - 9:45 am
BOI
-
PWM
11h 55m
2 stops
$479Southwest
Tue, Jun 9 - Sun, Jun 14
American Airlines Logo
6:00 am - 3:07 pm
PWM
-
BOI
11h 07m
2 stops
American Airlines Logo
6:26 am - 4:46 pm
BOI
-
PWM
8h 20m
1 stop
$494American Airlines
Sat, May 23 - Sun, May 31
Southwest Logo
3:45 pm - 12:30 am
PWM
-
BOI
10h 45m
2 stops
Southwest Logo
8:20 pm - 9:45 am
BOI
-
PWM
11h 25m
2 stops
$495Southwest
Tue, Jun 9 - Sun, Jun 14
Southwest Logo
3:45 pm - 12:25 am
PWM
-
BOI
10h 40m
2 stops
Southwest Logo
1:35 pm - 11:10 pm
BOI
-
PWM
7h 35m
1 stop
$498Southwest
Tue, Jun 9 - Sun, Jun 14
United Airlines Logo
11:34 am - 9:17 pm
PWM
-
BOI
11h 43m
2 stops
United Airlines Logo
8:02 am - 11:29 pm
BOI
-
PWM
13h 27m
2 stops
$511United Airlines
Sat, May 2 - Tue, May 5
United Airlines Logo
3:23 pm - 10:35 pm
PWM
-
BOI
9h 12m
1 stop
United Airlines Logo
8:34 am - 11:59 pm
BOI
-
PWM
13h 25m
2 stops
$514United Airlines
Tue, May 5 - Wed, May 6

Southwest flights from Portland, Maine to Boise

Our best Southwest deals on Portland, Maine to Boise flight tickets
Southwest
Jun 9
PWM3:45 pmPortland
10h 40m
2 stops
BOI12:25 amBoise Air Term. Gowen Fld
Jun 14
BOI8:20 pmBoise Air Term. Gowen Fld
11h 25m
2 stops
PWM9:45 amPortland
$471
Southwest
Jun 25
PWM7:40 amPortland
11h 35m
1 stop
BOI5:15 pmBoise Air Term. Gowen Fld
Jul 3
BOI8:45 amBoise Air Term. Gowen Fld
11h 25m
1 stop
PWM10:10 pmPortland
$478
Southwest
Jun 9
PWM3:45 pmPortland
10h 40m
2 stops
BOI12:25 amBoise Air Term. Gowen Fld
Jun 14
BOI7:50 pmBoise Air Term. Gowen Fld
11h 55m
2 stops
PWM9:45 amPortland
$479

Delta flights from Portland, Maine to Boise

Our best Delta deals on Portland, Maine to Boise flight tickets
Delta
May 14
PWM12:55 pmPortland
10h 49m
2 stops
BOI9:44 pmBoise Air Term. Gowen Fld
May 18
BOI11:39 pmBoise Air Term. Gowen Fld
12h 19m
2 stops
PWM1:58 pmPortland
$409
Delta
May 14
PWM2:05 pmPortland
10h 23m
1 stop
BOI10:28 pmBoise Air Term. Gowen Fld
May 18
BOI11:39 pmBoise Air Term. Gowen Fld
12h 19m
2 stops
PWM1:58 pmPortland
$438
Delta
Jun 12
PWM4:50 pmPortland
8h 57m
2 stops
BOI11:47 pmBoise Air Term. Gowen Fld
Jun 14
BOI11:45 pmBoise Air Term. Gowen Fld
12h 34m
2 stops
PWM2:19 pmPortland
$550

momondo Fare Finder

 
Customize your flight search to find flights from Portland, Maine to Boise 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, momondo users made 832,500 searches. Data last updated April 2, 2026.
Use the filters below to find and compare flights from Portland, Maine to Boise that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandBoise

PWM - BOI

PWMBOI

Portland

Thu 5/14

12:55 pm-9:44 pm

2 stops10h 49m

Boise Air Term. Gowen Fld

Mon 5/18

11:39 pm-1:58 pm

2 stops12h 19m

$409

PortlandBoise

PWM - BOI

PWMBOI

Portland

Thu 5/14

2:05 pm-10:28 pm

1 stop10h 23m

Boise Air Term. Gowen Fld

Mon 5/18

11:39 pm-1:58 pm

2 stops12h 19m

$438

PortlandBoise

PWM - BOI

PWMBOI

Portland

Tue 6/9

3:45 pm-12:25 am

2 stops10h 40m

Boise Air Term. Gowen Fld

Sun 6/14

8:20 pm-9:45 am

2 stops11h 25m

$471

PortlandBoise

PWM - BOI

PWMBOI

Portland

Thu 6/25

7:40 am-5:15 pm

1 stop11h 35m

Boise Air Term. Gowen Fld

Fri 7/3

8:45 am-10:10 pm

1 stop11h 25m

$478

PortlandBoise

PWM - BOI

PWMBOI

Portland

Tue 6/9

3:45 pm-12:25 am

2 stops10h 40m

Boise Air Term. Gowen Fld

Sun 6/14

7:50 pm-9:45 am

2 stops11h 55m

$479

PortlandBoise

PWM - BOI

PWMBOI

Portland

Sat 5/23

6:00 am-3:07 pm

2 stops11h 07m

Boise Air Term. Gowen Fld

Sun 5/31

6:26 am-4:46 pm

1 stop8h 20m

$494

PortlandBoise

PWM - BOI

PWMBOI

Portland

Tue 6/9

3:45 pm-12:30 am

2 stops10h 45m

Boise Air Term. Gowen Fld

Sun 6/14

8:20 pm-9:45 am

2 stops11h 25m

$495
Quickest round-trip

PortlandBoise

PWM - BOI

PWMBOI

Portland

Tue 6/9

3:45 pm-12:25 am

2 stops10h 40m

Boise Air Term. Gowen Fld

Sun 6/14

1:35 pm-11:10 pm

1 stop7h 35m

$498

PortlandBoise

PWM - BOI

PWMBOI

Portland

Sat 5/2

11:34 am-9:17 pm

2 stops11h 43m

Boise Air Term. Gowen Fld

Tue 5/5

8:02 am-11:29 pm

2 stops13h 27m

$511

PortlandBoise

PWM - BOI

PWMBOI

Portland

Tue 5/5

3:23 pm-10:35 pm

1 stop9h 12m

Boise Air Term. Gowen Fld

Wed 5/6

8:34 am-11:59 pm

2 stops13h 25m

$514

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Boise from

How to get the cheapest flight ticket from Portland, Maine to Boise

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Portland, Maine and Boise?

Can stopping save me money on Portland, Maine to Boise flights?

You could potentially save up to 6% on your flight if you consider stops on a Portland, Maine to Boise flight.

When to book flights from Portland, Maine to Boise

Are you open to changing your travel dates? Check out the ideal times to fly from Portland, Maine to Boise according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland, Maine to Boise (PWM to BOI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland, Maine to Boise

Fastest flight time

10h 40m

Direct flights

None
The fastest flight from Portland, Maine to Boise takes 10h 40m
There are no direct flights from Portland, Maine to Boise. There are no popular flight routes from Portland, Maine to Boise.
Search flight deals

Frequently asked questions about flying from Portland, Maine to Boise

  • How far is Portland to Boise Air Term. Gowen Fld by plane?

    Boise Air Term. Gowen Fld is 2265.8 mi away from Portland. 10h 40m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Portland Airport to Boise Air Term. Gowen Fld Airport?

    Prices for flights from Portland Airport to Boise Air Term. Gowen Fld Airport are updated daily.

  • How many operators does momondo search for flights from Portland Airport to Boise Air Term. Gowen Fld Airport?

  • How old do you have to be to fly from Portland Airport to Boise Air Term. Gowen Fld Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Boise Air Term. Gowen Fld Airport.

  • What documentation or ID do you need to fly to Boise Air Term. Gowen Fld Airport?

    The travel and health documents required for your trip to Boise Air Term. Gowen Fld Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Boise Air Term. Gowen Fld Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Portland, Maine to Boise?

Best airlines flying from Portland, Maine to Boise

Compare and see reviews for airlines that fly from Portland, Maine to Boise with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $312Free CancellationRating
7.1
11,549 reviews
Search American Airlines flights
DeltaPriceFrom $339Free CancellationRating
7.9
8,370 reviews
Search Delta flights
SouthwestPriceFrom $352Free CancellationRating
8.0
4,337 reviews
Search Southwest flights
United AirlinesPriceFrom $356Free CancellationRating
7.4
9,533 reviews
Search United Airlines flights

Traveling to a place near Boise?

Book flights to Boise if you plan to visit one of these locations
Nampa
Meridian
McCall
Ontario
Caldwell
Eagle

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Boise?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Boise from Portland.

Can I find flights from Portland to Boise with flexible booking policies on momondo?

All flight searches from Portland to Boise on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Portland to Boise?

momondo provides multiple filters to help you find the best flight to Boise from Portland. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Portland to Boise right now. Can momondo alert me if prices change?

Price alerts on flights to Boise from Portland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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