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Cheap flights from Portland, Maine to Boise from $198

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 7/8. 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.
American Airlines Logo
12:39 pm - 11:32 pm
PWM
-
BOI
12h 53m
2 stops
American Airlines Logo
1:18 pm - 12:13 am
BOI
-
PWM
8h 55m
1 stop
$400American Airlines
Tue, Sep 22 - Wed, Sep 30
Southwest Logo
5:45 am - 2:50 pm
PWM
-
BOI
11h 05m
2 stops
Southwest Logo
7:05 am - 9:10 pm
BOI
-
PWM
12h 05m
2 stops
$405Southwest
Wed, Aug 26 - Tue, Sep 1
Southwest Logo
5:55 am - 2:10 pm
PWM
-
BOI
10h 15m
2 stops
Southwest Logo
6:25 am - 9:10 pm
BOI
-
PWM
12h 45m
2 stops
$418Southwest
Mon, Aug 24 - Tue, Sep 1
American Airlines Logo
7:13 am - 12:31 pm
PWM
-
BOI
7h 18m
1 stop
American Airlines Logo
1:18 pm - 12:13 am
BOI
-
PWM
8h 55m
1 stop
$434American Airlines
Tue, Sep 22 - Wed, Sep 30
American Airlines Logo
6:00 am - 2:20 pm
PWM
-
BOI
10h 20m
1 stop
American Airlines Logo
3:10 pm - 12:43 am
BOI
-
PWM
7h 33m
1 stop
$435American Airlines
Fri, Jul 17 - Tue, Jul 21
Southwest Logo
7:40 am - 2:10 pm
PWM
-
BOI
8h 30m
1 stop
Southwest Logo
6:25 am - 9:10 pm
BOI
-
PWM
12h 45m
2 stops
$436Southwest
Mon, Aug 24 - Tue, Sep 1
American Airlines Logo
6:00 am - 2:20 pm
PWM
-
BOI
10h 20m
1 stop
American Airlines Logo
12:14 pm - 12:43 am
BOI
-
PWM
10h 29m
2 stops
$440American Airlines
Fri, Jul 17 - Tue, Jul 21
United Airlines Logo
6:00 am - 11:28 am
PWM
-
BOI
7h 28m
1 stop
United Airlines Logo
5:00 am - 5:54 pm
BOI
-
PWM
10h 54m
2 stops
$452United Airlines
Wed, Aug 26 - Tue, Sep 1
American Airlines Logo
12:39 pm - 11:32 pm
PWM
-
BOI
12h 53m
2 stops
American Airlines Logo
6:44 am - 8:23 pm
BOI
-
PWM
11h 39m
2 stops
$454American Airlines
Tue, Sep 22 - Wed, Sep 30
Southwest Logo
1:30 pm - 11:55 pm
PWM
-
BOI
12h 25m
2 stops
Southwest Logo
6:25 am - 9:30 pm
BOI
-
PWM
13h 05m
2 stops
$467Southwest
Tue, Oct 6 - Wed, Oct 14

United Airlines flights from Portland, Maine to Boise

Our best United Airlines deals on Portland, Maine to Boise flight tickets
United Airlines
Aug 26
PWM6:00 amPortland
7h 28m
1 stop
BOI11:28 amBoise Air Term. Gowen Fld
Sep 1
BOI5:00 amBoise Air Term. Gowen Fld
10h 54m
2 stops
PWM5:54 pmPortland
$452
United Airlines
Aug 26
PWM6:00 amPortland
7h 28m
1 stop
BOI11:28 amBoise Air Term. Gowen Fld
Sep 1
BOI12:24 pmBoise Air Term. Gowen Fld
6h 59m
1 stop
PWM9:23 pmPortland
$475
United Airlines
Aug 26
PWM6:00 amPortland
7h 28m
1 stop
BOI11:28 amBoise Air Term. Gowen Fld
Sep 1
BOI5:00 amBoise Air Term. Gowen Fld
10h 54m
2 stops
PWM5:54 pmPortland
$479

American Airlines flights from Portland, Maine to Boise

Our best American Airlines deals on Portland, Maine to Boise flight tickets
American Airlines
Sep 22
PWM12:39 pmPortland
12h 53m
2 stops
BOI11:32 pmBoise Air Term. Gowen Fld
Sep 30
BOI1:18 pmBoise Air Term. Gowen Fld
8h 55m
1 stop
PWM12:13 amPortland
$400
American Airlines
May 27
PWM6:00 amPortland
10h 20m
1 stop
BOI2:20 pmBoise Air Term. Gowen Fld
Jun 9
BOI3:12 pmBoise Air Term. Gowen Fld
7h 30m
1 stop
PWM12:42 amPortland
$431
American Airlines
Sep 22
PWM7:13 amPortland
7h 18m
1 stop
BOI12:31 pmBoise Air Term. Gowen Fld
Sep 30
BOI1:18 pmBoise Air Term. Gowen Fld
8h 55m
1 stop
PWM12:13 amPortland
$434

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 May 20, 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

Tue 9/22

12:39 pm-11:32 pm

2 stops12h 53m

Boise Air Term. Gowen Fld

Wed 9/30

1:18 pm-12:13 am

1 stop8h 55m

$400

PortlandBoise

PWM - BOI

PWMBOI

Portland

Wed 8/26

5:45 am-2:50 pm

2 stops11h 05m

Boise Air Term. Gowen Fld

Tue 9/1

7:05 am-9:10 pm

2 stops12h 05m

$405

PortlandBoise

PWM - BOI

PWMBOI

Portland

Mon 8/24

5:55 am-2:10 pm

2 stops10h 15m

Boise Air Term. Gowen Fld

Tue 9/1

6:25 am-9:10 pm

2 stops12h 45m

$418
Quickest round-trip

PortlandBoise

PWM - BOI

PWMBOI

Portland

Tue 9/22

7:13 am-12:31 pm

1 stop7h 18m

Boise Air Term. Gowen Fld

Wed 9/30

1:18 pm-12:13 am

1 stop8h 55m

$434

PortlandBoise

PWM - BOI

PWMBOI

Portland

Fri 7/17

6:00 am-2:20 pm

1 stop10h 20m

Boise Air Term. Gowen Fld

Tue 7/21

3:10 pm-12:43 am

1 stop7h 33m

$435

PortlandBoise

PWM - BOI

PWMBOI

Portland

Mon 8/24

7:40 am-2:10 pm

1 stop8h 30m

Boise Air Term. Gowen Fld

Tue 9/1

6:25 am-9:10 pm

2 stops12h 45m

$436

PortlandBoise

PWM - BOI

PWMBOI

Portland

Fri 7/17

6:00 am-2:20 pm

1 stop10h 20m

Boise Air Term. Gowen Fld

Tue 7/21

12:14 pm-12:43 am

2 stops10h 29m

$440

PortlandBoise

PWM - BOI

PWMBOI

Portland

Wed 8/26

6:00 am-11:28 am

1 stop7h 28m

Boise Air Term. Gowen Fld

Tue 9/1

5:00 am-5:54 pm

2 stops10h 54m

$452

PortlandBoise

PWM - BOI

PWMBOI

Portland

Tue 9/22

12:39 pm-11:32 pm

2 stops12h 53m

Boise Air Term. Gowen Fld

Wed 9/30

6:44 am-8:23 pm

2 stops11h 39m

$454

PortlandBoise

PWM - BOI

PWMBOI

Portland

Tue 10/6

1:30 pm-11:55 pm

2 stops12h 25m

Boise Air Term. Gowen Fld

Wed 10/14

6:25 am-9:30 pm

2 stops13h 05m

$467

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?

What is the cheapest month to fly to Boise?

The month of February is, on average, the cheapest month to fly to Boise from Portland, Maine, with most prices found around $0. If you aren’t able to travel during the month of February, then book flights to Boise from Portland, Maine during January instead. Flights to Boise in January, while not as cheap as those in February, still average around $382.

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

You could potentially save up to 25% 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

7h 32m

Direct flights

None
The fastest flight from Portland, Maine to Boise takes 7h 32m
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. 7h 32m 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
11,642 reviews
Search American Airlines flights
DeltaPriceFrom $332Free CancellationRating
7.9
8,454 reviews
Search Delta flights
SouthwestPriceFrom $352Free CancellationRating
7.9
4,285 reviews
Search Southwest flights
United AirlinesPriceFrom $446Free CancellationRating
7.4
9,736 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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