Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Portland, Maine to Boise from $189

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 5/2. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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
7:07 am - 12:49 pm
PWM
-
BOI
7h 42m
1 stop
American Airlines Logo
1:29 pm - 11:27 pm
BOI
-
PWM
7h 58m
1 stop
$380American Airlines
Tue, Apr 7 - Sat, Apr 11
United Airlines Logo
6:04 am - 11:49 am
PWM
-
BOI
7h 45m
1 stop
United Airlines Logo
5:00 am - 7:01 pm
BOI
-
PWM
12h 01m
2 stops
$385United Airlines
Tue, Apr 7 - Sat, Apr 11
Delta Logo
5:23 am - 12:38 pm
PWM
-
BOI
9h 15m
1 stop
Delta Logo
11:35 pm - 3:57 pm
BOI
-
PWM
14h 22m
2 stops
$390Delta
Wed, Apr 8 - Mon, Apr 13
Delta Logo
12:51 pm - 9:10 pm
PWM
-
BOI
10h 19m
2 stops
Delta Logo
11:35 pm - 3:57 pm
BOI
-
PWM
14h 22m
2 stops
$395Delta
Wed, Apr 8 - Mon, Apr 13
Southwest Logo
5:45 am - 5:15 pm
PWM
-
BOI
13h 30m
2 stops
Southwest Logo
8:15 pm - 11:55 am
BOI
-
PWM
13h 40m
2 stops
$396Southwest
Wed, Mar 4 - Mon, Mar 9
American Airlines Logo
11:59 am - 10:23 pm
PWM
-
BOI
12h 24m
2 stops
American Airlines Logo
1:29 pm - 11:27 pm
BOI
-
PWM
7h 58m
1 stop
$412American Airlines
Sun, Apr 5 - Wed, Apr 8
Southwest Logo
3:55 pm - 12:25 am
PWM
-
BOI
10h 30m
2 stops
Southwest Logo
6:40 am - 10:20 pm
BOI
-
PWM
13h 40m
2 stops
$417Southwest
Tue, May 19 - Wed, May 27
Southwest Logo
12:35 pm - 1:25 am
PWM
-
BOI
14h 50m
2 stops
Southwest Logo
6:00 am - 10:20 pm
BOI
-
PWM
14h 20m
2 stops
$422Southwest
Sun, Apr 5 - Wed, Apr 8
Southwest Logo
2:50 pm - 1:20 am
PWM
-
BOI
12h 30m
2 stops
Southwest Logo
7:05 am - 11:05 pm
BOI
-
PWM
14h 00m
2 stops
$434Southwest
Thu, Mar 5 - Tue, Mar 10
Delta Logo
6:00 am - 12:40 pm
PWM
-
BOI
8h 40m
1 stop
Delta Logo
8:59 am - 12:34 am
BOI
-
PWM
13h 35m
2 stops
$448Delta
Fri, May 15 - Tue, May 19

American Airlines flights from Portland, Maine to Boise

Our best American Airlines deals on Portland, Maine to Boise flight tickets
American Airlines
Apr 7
PWM7:07 amPortland
7h 42m
1 stop
BOI12:49 pmBoise Air Term. Gowen Fld
Apr 11
BOI1:29 pmBoise Air Term. Gowen Fld
7h 58m
1 stop
PWM11:27 pmPortland
$380
American Airlines
Apr 5
PWM11:59 amPortland
12h 24m
2 stops
BOI10:23 pmBoise Air Term. Gowen Fld
Apr 8
BOI1:29 pmBoise Air Term. Gowen Fld
7h 58m
1 stop
PWM11:27 pmPortland
$412
American Airlines
May 15
PWM7:07 amPortland
7h 42m
1 stop
BOI12:49 pmBoise Air Term. Gowen Fld
May 19
BOI1:29 pmBoise Air Term. Gowen Fld
8h 48m
1 stop
PWM12:17 amPortland
$453

United Airlines flights from Portland, Maine to Boise

Our best United Airlines deals on Portland, Maine to Boise flight tickets
United Airlines
Apr 7
PWM6:04 amPortland
7h 45m
1 stop
BOI11:49 amBoise Air Term. Gowen Fld
Apr 11
BOI5:00 amBoise Air Term. Gowen Fld
12h 01m
2 stops
PWM7:01 pmPortland
$385
United Airlines
Feb 25
PWM5:45 amPortland
8h 48m
1 stop
BOI12:33 pmBoise Air Term. Gowen Fld
Mar 1
BOI7:11 amBoise Air Term. Gowen Fld
14h 09m
2 stops
PWM11:20 pmPortland
$638
United Airlines
Feb 24
PWM6:00 amPortland
12h 07m
2 stops
BOI4:07 pmBoise Air Term. Gowen Fld
Feb 28
BOI12:16 pmBoise Air Term. Gowen Fld
6h 53m
1 stop
PWM9:09 pmPortland
$672

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 February 11, 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

PortlandBoise

PWM - BOI

PWMBOI

Portland

Tue 4/7

7:07 am-12:49 pm

1 stop7h 42m

Boise Air Term. Gowen Fld

Sat 4/11

1:29 pm-11:27 pm

1 stop7h 58m

$380

PortlandBoise

PWM - BOI

PWMBOI

Portland

Tue 4/7

6:04 am-11:49 am

1 stop7h 45m

Boise Air Term. Gowen Fld

Sat 4/11

5:00 am-7:01 pm

2 stops12h 01m

$385

PortlandBoise

PWM - BOI

PWMBOI

Portland

Wed 4/8

5:23 am-12:38 pm

1 stop9h 15m

Boise Air Term. Gowen Fld

Mon 4/13

11:35 pm-3:57 pm

2 stops14h 22m

$390

PortlandBoise

PWM - BOI

PWMBOI

Portland

Wed 4/8

12:51 pm-9:10 pm

2 stops10h 19m

Boise Air Term. Gowen Fld

Mon 4/13

11:35 pm-3:57 pm

2 stops14h 22m

$395

PortlandBoise

PWM - BOI

PWMBOI

Portland

Wed 3/4

5:45 am-5:15 pm

2 stops13h 30m

Boise Air Term. Gowen Fld

Mon 3/9

8:15 pm-11:55 am

2 stops13h 40m

$396

PortlandBoise

PWM - BOI

PWMBOI

Portland

Sun 4/5

11:59 am-10:23 pm

2 stops12h 24m

Boise Air Term. Gowen Fld

Wed 4/8

1:29 pm-11:27 pm

1 stop7h 58m

$412

PortlandBoise

PWM - BOI

PWMBOI

Portland

Tue 5/19

3:55 pm-12:25 am

2 stops10h 30m

Boise Air Term. Gowen Fld

Wed 5/27

6:40 am-10:20 pm

2 stops13h 40m

$417

PortlandBoise

PWM - BOI

PWMBOI

Portland

Sun 4/5

12:35 pm-1:25 am

2 stops14h 50m

Boise Air Term. Gowen Fld

Wed 4/8

6:00 am-10:20 pm

2 stops14h 20m

$422

PortlandBoise

PWM - BOI

PWMBOI

Portland

Thu 3/5

2:50 pm-1:20 am

2 stops12h 30m

Boise Air Term. Gowen Fld

Tue 3/10

7:05 am-11:05 pm

2 stops14h 00m

$434

PortlandBoise

PWM - BOI

PWMBOI

Portland

Fri 5/15

6:00 am-12:40 pm

1 stop8h 40m

Boise Air Term. Gowen Fld

Tue 5/19

8:59 am-12:34 am

2 stops13h 35m

$448

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

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 cheapest month to fly to Boise?

The month of January is, on average, the cheapest month to fly to Boise from Portland, Maine, with most prices found around $382. If you aren’t able to travel during the month of January, then book flights to Boise from Portland, Maine during August instead. Flights to Boise in August, while not as cheap as those in January, still average around $430.

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

You could potentially save up to 3% 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

8h 40m

Direct flights

None
The fastest flight from Portland, Maine to Boise takes 8h 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

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

    Boise Air Term. Gowen Fld is 2265.8 mi away from Portland. 8h 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
United AirlinesPriceFrom $311Free CancellationRating
7.4
9,276 reviews
Search United Airlines flights
American AirlinesPriceFrom $312Free CancellationRating
7.2
11,267 reviews
Search American Airlines flights
DeltaPriceFrom $339Free CancellationRating
7.9
8,177 reviews
Search Delta flights
SouthwestPriceFrom $356Free CancellationRating
8.0
4,280 reviews
Search Southwest flights

Traveling to a place near Boise?

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

An easier way to manage your Boise trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 3/13
Fri 3/20
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States