What airlines fly to Idaho?

Delta, American Airlines and United Airlines are the top three most popular airlines that fly to Idaho from Portland, Maine according to our data. Delta is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Idaho. Keep in mind that there are 5 different airlines that fly to Idaho on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Portland to Idaho?

United Airlines, Delta, and Sun Country Air are the most popular carriers operating from Portland to Idaho

When did momondo last update prices for flights from Portland Airport to Idaho?

Prices for flights from Portland Airport to Idaho are updated daily.

How many operators does momondo search for flights from Portland Airport to Idaho?

There are 4 operators available for flights from Portland Airport to Idaho as of March 2026.

How old do you have to be to fly from Portland Airport to Idaho?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Idaho.

What documentation or ID do you need to fly to Idaho?

The required travel and health documents for your Idaho trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Idaho. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$190 Cheap Flights from Portland to Idaho in 2026

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Find the cheapest flights from Portland, Maine to Idaho

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:17 am - 12:18 pm

PWM

JAC

8h 01m

1 stop

1:44 pm - 11:34 pm

JAC

PWM

7h 50m

1 stop

$369American Airlines

Mon, Mar 30 - Sat, Apr 4

10:50 am - 11:41 pm

PWM

BOI

14h 51m

2 stops

1:29 pm - 11:22 pm

BOI

PWM

7h 53m

1 stop

$384American Airlines

Mon, May 4 - Thu, May 7

6:17 am - 12:18 pm

PWM

JAC

8h 01m

1 stop

1:44 pm - 11:34 pm

JAC

PWM

7h 50m

1 stop

$389American Airlines

Mon, Mar 30 - Sat, Apr 4

6:00 am - 3:34 pm

PWM

JAC

11h 34m

2 stops

1:47 pm - 12:07 am

JAC

PWM

8h 20m

1 stop

$394American Airlines

Mon, May 25 - Wed, Jun 3

5:21 am - 1:07 pm

PWM

BOI

9h 46m

1 stop

10:41 am - 12:46 am

BOI

PWM

12h 05m

2 stops

$402Delta

Fri, Apr 24 - Mon, May 4

5:21 am - 4:13 pm

PWM

JAC

12h 52m

2 stops

11:35 am - 11:12 pm

JAC

PWM

9h 37m

2 stops

$404Delta

Tue, May 5 - Wed, May 13

2:50 pm - 1:00 am

PWM

BOI

12h 10m

2 stops

8:50 am - 11:25 pm

BOI

PWM

12h 35m

2 stops

$423Southwest

Fri, Apr 24 - Mon, May 4

2:50 pm - 1:55 am

PWM

BOI

13h 05m

2 stops

8:15 pm - 12:20 pm

BOI

PWM

14h 05m

2 stops

$425Southwest

Mon, Mar 30 - Mon, Apr 6

6:33 pm - 9:53 am

PWM

IDA

17h 20m

2 stops

5:20 pm - 2:20 pm

IDA

PWM

19h 00m

2 stops

$673United Airlines

Sun, Apr 19 - Mon, Apr 27

3:23 pm - 9:55 am

PWM

IDA

20h 32m

1 stop

5:26 pm - 9:20 pm

IDA

PWM

25h 54m

2 stops

$677United Airlines

Fri, May 15 - Sun, May 17

Delta flights from Portland, Maine to Idaho

Our best Delta deals on Portland, Maine to Idaho flight tickets

Delta

Apr 24

PWM5:21 amPortland

9h 46m

1 stop

BOI1:07 pmBoise Air Term. Gowen Fld

May 4

BOI10:41 amBoise Air Term. Gowen Fld

12h 05m

2 stops

PWM12:46 amPortland

$402

Delta

May 5

PWM5:21 amPortland

12h 52m

2 stops

JAC4:13 pmJackson Hole

May 13

JAC11:35 amJackson Hole

9h 37m

2 stops

PWM11:12 pmPortland

$404

Delta

May 5

PWM5:21 amPortland

12h 52m

2 stops

JAC4:13 pmJackson Hole

May 13

JAC11:35 amJackson Hole

9h 37m

2 stops

PWM11:12 pmPortland

$424

Southwest flights from Portland, Maine to Idaho

Our best Southwest deals on Portland, Maine to Idaho flight tickets

Southwest

Apr 24

PWM2:50 pmPortland

12h 10m

2 stops

BOI1:00 amBoise Air Term. Gowen Fld

May 4

BOI8:50 amBoise Air Term. Gowen Fld

12h 35m

2 stops

PWM11:25 pmPortland

$423

Southwest

Mar 30

PWM2:50 pmPortland

13h 05m

2 stops

BOI1:55 amBoise Air Term. Gowen Fld

Apr 6

BOI8:15 pmBoise Air Term. Gowen Fld

14h 05m

2 stops

PWM12:20 pmPortland

$425

Southwest

Apr 10

PWM12:45 pmPortland

12h 45m

2 stops

BOI11:30 pmBoise Air Term. Gowen Fld

Apr 16

BOI8:50 amBoise Air Term. Gowen Fld

12h 35m

2 stops

PWM11:25 pmPortland

$443

Fly from

Fly to

Route

Depart

Return

Price

PortlandJackson

PWM - JAC

PWMJAC

Portland

Mon 3/30

6:17 am-12:18 pm

1 stop8h 01m

Jackson Hole

Sat 4/4

1:44 pm-11:34 pm

1 stop7h 50m

$369

PortlandBoise

PWM - BOI

PWMBOI

Portland

Mon 5/4

10:50 am-11:41 pm

2 stops14h 51m

Boise Air Term. Gowen Fld

Thu 5/7

1:29 pm-11:22 pm

1 stop7h 53m

$384

PortlandJackson

PWM - JAC

PWMJAC

Portland

Mon 3/30

6:17 am-12:18 pm

1 stop8h 01m

Jackson Hole

Sat 4/4

1:44 pm-11:34 pm

1 stop7h 50m

$389

PortlandJackson

PWM - JAC

PWMJAC

Portland

Mon 5/25

6:00 am-3:34 pm

2 stops11h 34m

Jackson Hole

Wed 6/3

1:47 pm-12:07 am

1 stop8h 20m

$394

PortlandBoise

PWM - BOI

PWMBOI

Portland

Fri 4/24

5:21 am-1:07 pm

1 stop9h 46m

Boise Air Term. Gowen Fld

Mon 5/4

10:41 am-12:46 am

2 stops12h 05m

$402

PortlandJackson

PWM - JAC

PWMJAC

Portland

Tue 5/5

5:21 am-4:13 pm

2 stops12h 52m

Jackson Hole

Wed 5/13

11:35 am-11:12 pm

2 stops9h 37m

$404

PortlandBoise

PWM - BOI

PWMBOI

Portland

Fri 4/24

2:50 pm-1:00 am

2 stops12h 10m

Boise Air Term. Gowen Fld

Mon 5/4

8:50 am-11:25 pm

2 stops12h 35m

$423

PortlandBoise

PWM - BOI

PWMBOI

Portland

Mon 3/30

2:50 pm-1:55 am

2 stops13h 05m

Boise Air Term. Gowen Fld

Mon 4/6

8:15 pm-12:20 pm

2 stops14h 05m

$425

PortlandIdaho Falls

PWM - IDA

PWMIDA

Portland

Sun 4/19

6:33 pm-9:53 am

2 stops17h 20m

Idaho Falls Fanning Field

Mon 4/27

5:20 pm-2:20 pm

2 stops19h 00m

$673

PortlandIdaho Falls

PWM - IDA

PWMIDA

Portland

Fri 5/15

3:23 pm-9:55 am

1 stop20h 32m

Idaho Falls Fanning Field

Sun 5/17

5:26 pm-9:20 pm

2 stops25h 54m

$677

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

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

Prices

Airlines

What is the cheapest month to fly to Idaho?

In general, January is the cheapest month to fly from Portland, Maine to Idaho. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $382. If you don’t want to visit Idaho in January, then you should wait until August to fly from Portland, Maine, when ticket prices are also cheap, with an average price of $430.

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

You could potentially save up to 38% on your flight if you consider stops on a Portland, Maine to Idaho flight.

Cheap Portland, Maine to Idaho flight deals and tips

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

Fastest flight time	7h 13m
Direct flights	None

The fastest flight from Portland, Maine to Idaho takes 7h 13m

There are no direct flights from Portland, Maine to Idaho. There are no popular flight routes from Portland, Maine to Idaho.

Search flight deals

When did momondo last update prices for flights from Portland Airport to Idaho?
Prices for flights from Portland Airport to Idaho are updated daily.
How many operators does momondo search for flights from Portland Airport to Idaho?
There are 4 operators available for flights from Portland Airport to Idaho as of March 2026.
How old do you have to be to fly from Portland Airport to Idaho?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Idaho.
What documentation or ID do you need to fly to Idaho?
The required travel and health documents for your Idaho trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Idaho. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Portland, Maine to Idaho

Compare and see reviews for airlines that fly from Portland, Maine to Idaho with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $312	Free Cancellation	Rating 7.1 11,378 reviews	Search American Airlines flights
Delta	PriceFrom $339	Free Cancellation	Rating 7.9 8,245 reviews	Search Delta flights
Southwest	PriceFrom $352	Free Cancellation	Rating 8.0 4,304 reviews	Search Southwest flights
United Airlines	PriceFrom $356	Free Cancellation	Rating 7.4 9,382 reviews	Search United Airlines flights

Why use momondo?

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

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 Idaho from Portland.

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

momondo does allow users to show only those flights to Idaho from Portland which offer a flexible booking policy as well as other useful filters and features.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Portland to Idaho.

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

If you are not ready to book a flight from Portland to Idaho now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Idaho and let you know when they change.