What airlines fly to Idaho?

Delta, United Airlines and American 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 44% 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?

American Airlines, United Airlines, and Delta 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 December 2025.

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.

$254 Cheap Flights from Portland to Idaho in 2025/26

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Find the cheapest flights from Portland, Maine to Idaho

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Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 am - 12:56 pm

PWM

JAC

8h 56m1 stop

2:00 pm - 11:30 pm

JAC

PWM

7h 30m1 stop

$299United Airlines

Sun, Jan 11 - Sat, Jan 17

5:30 am - 6:28 pm

PWM

BOI

14h 58m2 stops

9:15 am - 12:20 am

BOI

PWM

13h 05m2 stops

$300Delta

Wed, Feb 4 - Wed, Feb 11

6:00 am - 12:56 pm

PWM

JAC

8h 56m1 stop

7:00 am - 11:30 pm

JAC

PWM

14h 30m2 stops

$304United Airlines

Sun, Jan 11 - Sat, Jan 17

5:20 am - 2:42 pm

PWM

JAC

11h 22m2 stops

5:36 pm - 12:05 pm

JAC

PWM

16h 29m2 stops

$309American Airlines

Thu, Jan 8 - Mon, Jan 12

5:30 am - 12:30 pm

PWM

BOI

9h 00m1 stop

7:25 am - 12:20 am

BOI

PWM

14h 55m2 stops

$333Delta

Wed, Feb 4 - Wed, Feb 11

5:30 am - 12:30 pm

PWM

BOI

9h 00m1 stop

7:25 am - 12:20 am

BOI

PWM

14h 55m2 stops

$346Delta

Thu, Feb 5 - Wed, Feb 11

5:30 am - 12:30 pm

PWM

BOI

9h 00m1 stop

5:40 am - 12:20 am

BOI

PWM

16h 40m2 stops

$373Delta

Fri, Feb 6 - Wed, Feb 11

5:30 am - 6:28 pm

PWM

BOI

14h 58m2 stops

1:38 pm - 11:06 pm

BOI

PWM

7h 28m1 stop

$419Delta

Fri, Feb 6 - Fri, Feb 13

5:07 pm - 1:02 pm

PWM

JAC

21h 55m2 stops

5:36 pm - 12:05 pm

JAC

PWM

16h 29m2 stops

$430American Airlines

Wed, Jan 7 - Mon, Jan 12

5:35 am - 3:50 pm

PWM

BOI

12h 15m2 stops

6:35 pm - 11:15 am

BOI

PWM

14h 40m2 stops

$430Southwest

Thu, Feb 5 - Thu, Feb 12

Southwest flights from Portland, Maine to Idaho

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

Southwest

Jan 16

PWM5:35 amPortland

19h 20m

2 stops

BOI10:55 pmBoise Air Term. Gowen Fld

Jan 19

BOI7:00 pmBoise Air Term. Gowen Fld

15h 10m

2 stops

PWM12:10 pmPortland

$474

Find similar

Southwest

Dec 24

PWM5:30 amPortland

13h 20m

2 stops

BOI4:50 pmBoise Air Term. Gowen Fld

Dec 31

BOI6:10 amBoise Air Term. Gowen Fld

14h 05m

2 stops

PWM10:15 pmPortland

$604

Find similar

United Airlines flights from Portland, Maine to Idaho

Our best United Airlines deals on Portland, Maine to Idaho flight tickets

United Airlines

Jan 11

PWM6:00 amPortland

8h 56m

1 stop

JAC12:56 pmJackson Hole

Jan 17

JAC2:00 pmJackson Hole

7h 30m

1 stop

PWM11:30 pmPortland

$299

Find similar

United Airlines

Jan 11

PWM6:00 amPortland

8h 56m

1 stop

JAC12:56 pmJackson Hole

Jan 17

JAC7:00 amJackson Hole

14h 30m

2 stops

PWM11:30 pmPortland

$304

Find similar

United Airlines

Jan 11

PWM6:00 amPortland

8h 56m

1 stop

JAC12:56 pmJackson Hole

Jan 18

JAC7:00 amJackson Hole

14h 30m

2 stops

PWM11:30 pmPortland

$464

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandJackson

PWM - JAC

PWMJAC

Portland

Sun 1/11

6:00 am-12:56 pm

1 stop8h 56m

Jackson Hole

Sat 1/17

2:00 pm-11:30 pm

1 stop7h 30m

$299

PortlandBoise

PWM - BOI

PWMBOI

Portland

Wed 2/4

5:30 am-6:28 pm

2 stops14h 58m

Boise Air Term. Gowen Fld

Wed 2/11

9:15 am-12:20 am

2 stops13h 05m

$300

PortlandJackson

PWM - JAC

PWMJAC

Portland

Sun 1/11

6:00 am-12:56 pm

1 stop8h 56m

Jackson Hole

Sat 1/17

7:00 am-11:30 pm

2 stops14h 30m

$304

PortlandJackson

PWM - JAC

PWMJAC

Portland

Thu 1/8

5:20 am-2:42 pm

2 stops11h 22m

Jackson Hole

Mon 1/12

5:36 pm-12:05 pm

2 stops16h 29m

$309

PortlandBoise

PWM - BOI

PWMBOI

Portland

Wed 2/4

5:30 am-12:30 pm

1 stop9h 00m

Boise Air Term. Gowen Fld

Wed 2/11

7:25 am-12:20 am

2 stops14h 55m

$333

PortlandBoise

PWM - BOI

PWMBOI

Portland

Thu 2/5

5:30 am-12:30 pm

1 stop9h 00m

Boise Air Term. Gowen Fld

Wed 2/11

7:25 am-12:20 am

2 stops14h 55m

$346

PortlandBoise

PWM - BOI

PWMBOI

Portland

Fri 2/6

5:30 am-12:30 pm

1 stop9h 00m

Boise Air Term. Gowen Fld

Wed 2/11

5:40 am-12:20 am

2 stops16h 40m

$373

PortlandBoise

PWM - BOI

PWMBOI

Portland

Fri 2/6

5:30 am-6:28 pm

2 stops14h 58m

Boise Air Term. Gowen Fld

Fri 2/13

1:38 pm-11:06 pm

1 stop7h 28m

$419

PortlandJackson

PWM - JAC

PWMJAC

Portland

Wed 1/7

5:07 pm-1:02 pm

2 stops21h 55m

Jackson Hole

Mon 1/12

5:36 pm-12:05 pm

2 stops16h 29m

$430

PortlandBoise

PWM - BOI

PWMBOI

Portland

Thu 2/5

5:35 am-3:50 pm

2 stops12h 15m

Boise Air Term. Gowen Fld

Thu 2/12

6:35 pm-11:15 am

2 stops14h 40m

$430

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, August 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 $430. If you don’t want to visit Idaho in August, then you should wait until September to fly from Portland, Maine, when ticket prices are also cheap, with an average price of $441.

What is the cheapest day to depart on your flight to Idaho?

Our data shows that Friday is the least expensive day to fly to Idaho. Tickets to fly out on this day can be as low as $492. On the other hand, Sunday is the most expensive day to depart from Portland, Maine because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $944.

What is the cheapest time of day to depart on your flight to Idaho?

According to our data, the cheapest time of day to fly to Idaho is at noon. momondo users have found flights departing from Portland, Maine to Idaho at noon for as low as $551. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the afternoon is when there is more demand to fly to Idaho, so prices are often more expensive at around $756 per ticket.

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

You could potentially save up to 34% 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	8h 56m
Direct flights	None

The fastest flight from Portland, Maine to Idaho takes 8h 56m

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 December 2025.
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 7.2 11,050 reviews	Search American Airlines flights
Southwest	PriceFrom $356	Free Cancellation	Rating 7.9 4,253 reviews	Search Southwest flights
United Airlines	PriceFrom $356	Free Cancellation	Rating 7.4 9,095 reviews	Search United Airlines flights
Delta	PriceFrom $365	Free Cancellation	Rating 7.9 8,008 reviews	Search Delta 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.