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

United Airlines and American Airlines are the most popular carriers operating from Portland to Idaho

What airlines fly to Idaho?

American Airlines, Delta and United Airlines are the top three most popular airlines that fly to Idaho from Portland, Maine according to our data. American Airlines is the first choice among our users, with 33% 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.

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 3 operators available for flights from Portland Airport to Idaho as of August 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.

$153 Cheap Flights from Portland, Maine to Idaho in 2026

Discover deals from 900+ travel sites with momondo.

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.

8:03 am - 8:49 pmPWM Portland-GEG Spokane

15h 46m2 stops Newark Denver Intl

5:00 am - 4:02 pmGEG Spokane-PWM Portland

8h 02m1 stop Denver Intl

$353United Airlines

Fri, Oct 23 - Sat, Oct 31

11:57 am - 8:43 pmPWM Portland-GEG Spokane

11h 46m2 stops New York LaGuardia Dallas/Fort Worth

6:00 am - 9:26 pmGEG Spokane-PWM Portland

12h 26m2 stops Dallas/Fort Worth Philadelphia

$358American Airlines

Fri, Oct 23 - Sat, Oct 31

2:03 pm - 11:07 pmPWM Portland-GEG Spokane

12h 04m2 stops Chicago O'Hare Intl Phoenix Sky Harbor Intl

6:30 am - 11:47 pmGEG Spokane-PWM Portland

14h 17m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl

$361American Airlines

Thu, Sep 10 - Mon, Sep 14

6:02 am - 11:38 amPWM Portland-GEG Spokane

8h 36m1 stop Chicago O'Hare Intl

5:00 am - 9:23 pmGEG Spokane-PWM Portland

13h 23m2 stops Denver Intl Chicago O'Hare Intl

$374United Airlines

Sat, Sep 5 - Sat, Sep 12

12:06 pm - 8:42 pmPWM Portland-GEG Spokane

11h 36m2 stops Charlotte Douglas Dallas/Fort Worth

6:30 am - 11:47 pmGEG Spokane-PWM Portland

14h 17m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl

$379American Airlines

Sat, Sep 5 - Sat, Sep 12

5:08 pm - 10:51 pmPWM Portland-BOI Boise Air Term. Gowen Fld

7h 43m1 stop Chicago O'Hare Intl

6:30 am - 4:02 pmBOI Boise Air Term. Gowen Fld-PWM Portland

7h 32m1 stop Denver Intl

$415United Airlines

Sat, Oct 31 - Tue, Nov 3

6:00 am - 11:28 amPWM Portland-GEG Spokane

8h 28m1 stop Atlanta Hartsfield-Jackson

11:43 am - 11:28 pmGEG Spokane-PWM Portland

8h 45m1 stop Atlanta Hartsfield-Jackson

$459Delta

Thu, Sep 10 - Mon, Sep 14

2:14 pm - 9:30 pmPWM Portland-GEG Spokane

10h 16m1 stop Atlanta Hartsfield-Jackson

7:54 pm - 10:45 amGEG Spokane-PWM Portland

11h 51m2 stops Seattle/Tacoma Intl Minneapolis St Paul

$492Delta

Fri, Aug 28 - Tue, Sep 1

5:40 am - 2:45 pmPWM Portland-BOI Boise Air Term. Gowen Fld

11h 05m2 stops Baltimore/Washington Denver Intl

7:05 pm - 9:50 amBOI Boise Air Term. Gowen Fld-PWM Portland

12h 45m2 stops Phoenix Sky Harbor Intl Baltimore/Washington

$523Southwest

Wed, Oct 7 - Sun, Oct 11

4:45 pm - 11:58 pmPWM Portland-BOI Boise Air Term. Gowen Fld

9h 13m2 stops Detroit Metropolitan Wayne County Salt Lake City

11:10 pm - 4:02 pmBOI Boise Air Term. Gowen Fld-PWM Portland

14h 52m2 stops Atlanta Hartsfield-Jackson Detroit Metropolitan Wayne County

$688Delta

Thu, Oct 1 - Fri, Oct 9

Cheap last minute flights

Enter your travel dates to find the best prices.

7:28 am - 3:17 pmPWM Portland-JAC Jackson Hole

9h 49m2 stops Philadelphia Chicago O'Hare Intl

11:48 am - 11:41 pmJAC Jackson Hole-PWM Portland

9h 53m2 stops Dallas/Fort Worth Philadelphia

$641American Airlines

Tue, Aug 18 - Tue, Aug 25

5:30 am - 7:04 pmPWM Portland-JAC Jackson Hole

15h 34m2 stops Philadelphia Dallas/Fort Worth

11:48 am - 11:41 pmJAC Jackson Hole-PWM Portland

9h 53m2 stops Dallas/Fort Worth Philadelphia

$641American Airlines

Tue, Aug 18 - Tue, Aug 25

9:08 am - 3:17 pmPWM Portland-JAC Jackson Hole

8h 09m1 stop Chicago O'Hare Intl

11:48 am - 11:41 pmJAC Jackson Hole-PWM Portland

9h 53m2 stops Dallas/Fort Worth Philadelphia

$663American Airlines

Tue, Aug 18 - Tue, Aug 25

5:30 am - 7:04 pmPWM Portland-JAC Jackson Hole

15h 34m2 stops Philadelphia Dallas/Fort Worth

11:48 am - 11:41 pmJAC Jackson Hole-PWM Portland

9h 53m2 stops Dallas/Fort Worth Philadelphia

$668American Airlines

Tue, Aug 18 - Tue, Aug 25

6:00 am - 11:13 amPWM Portland-JAC Jackson Hole

7h 13m1 stop Chicago O'Hare Intl

8:05 am - 11:59 pmJAC Jackson Hole-PWM Portland

13h 54m2 stops Los Angeles Washington, D.C. Dulles Intl

$736United Airlines

Tue, Aug 18 - Tue, Aug 25

6:03 am - 11:13 amPWM Portland-JAC Jackson Hole

7h 10m1 stop Chicago O'Hare Intl

7:00 am - 3:51 pmJAC Jackson Hole-PWM Portland

6h 51m1 stop Denver Intl

$739United Airlines

Sun, Aug 16 - Wed, Aug 19

3:37 pm - 8:40 pmPWM Portland-JAC Jackson Hole

7h 03m1 stop Denver Intl

7:00 am - 3:51 pmJAC Jackson Hole-PWM Portland

6h 51m1 stop Denver Intl

$739United Airlines

Tue, Aug 18 - Wed, Aug 19

11:50 am - 6:55 pmPWM Portland-JAC Jackson Hole

9h 05m2 stops Minneapolis St Paul Salt Lake City

7:02 am - 9:31 pmJAC Jackson Hole-PWM Portland

12h 29m2 stops Minneapolis St Paul Atlanta Hartsfield-Jackson

$906Delta

Tue, Aug 18 - Sat, Aug 22

2:14 pm - 8:11 pmPWM Portland-JAC Jackson Hole

7h 57m1 stop Atlanta Hartsfield-Jackson

6:01 pm - 10:45 amJAC Jackson Hole-PWM Portland

14h 44m2 stops Salt Lake City Minneapolis St Paul

$1,035Delta

Tue, Aug 18 - Sun, Aug 23

1:05 pm - 10:00 pmPWM Portland-GEG Spokane

11h 55m2 stops Baltimore/Washington Denver Intl

7:30 am - 10:05 pmGEG Spokane-PWM Portland

11h 35m2 stops Phoenix Sky Harbor Intl Chicago Midway

$1,072Southwest

Mon, Aug 17 - Wed, Aug 19

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

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

Trusted and free

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

Price Alerts

Not ready to book? to track prices.

Search flight deals

United Airlines flights from Portland, Maine to Idaho

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

United Airlines

Oct 23

PWM8:03 amPortland

15h 46m

2 stops

GEG8:49 pmSpokane

Oct 31

GEG5:00 amSpokane

8h 02m

1 stop

PWM4:02 pmPortland

$353

United Airlines

Oct 31

PWM5:08 pmPortland

7h 43m

1 stop

BOI10:51 pmBoise Air Term. Gowen Fld

Nov 3

BOI6:30 amBoise Air Term. Gowen Fld

7h 32m

1 stop

PWM4:02 pmPortland

$415

United Airlines

Nov 3

PWM5:30 amPortland

13h 12m

2 stops

BOI4:42 pmBoise Air Term. Gowen Fld

Nov 7

BOI5:00 amBoise Air Term. Gowen Fld

9h 02m

1 stop

PWM4:02 pmPortland

$420

American Airlines flights from Portland, Maine to Idaho

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

American Airlines

Oct 23

PWM11:57 amPortland

11h 46m

2 stops

GEG8:43 pmSpokane

Oct 31

GEG6:00 amSpokane

12h 26m

2 stops

PWM9:26 pmPortland

$358

American Airlines

Sep 10

PWM2:03 pmPortland

12h 04m

2 stops

GEG11:07 pmSpokane

Sep 14

GEG6:30 amSpokane

14h 17m

2 stops

PWM11:47 pmPortland

$361

American Airlines

Sep 10

PWM2:03 pmPortland

12h 04m

2 stops

GEG11:07 pmSpokane

Sep 14

GEG5:00 amSpokane

10h 46m

1 stop

PWM6:46 pmPortland

$399

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandSpokane

PWM Portland - GEG Spokane

PWMGEG

Portland

Fri 10/23

8:03 am-8:49 pm

2 stops15h 46m

Spokane

Sat 10/31

5:00 am-4:02 pm

1 stop8h 02m

$353

PortlandSpokane

PWM Portland - GEG Spokane

PWMGEG

Portland

Fri 10/23

11:57 am-8:43 pm

2 stops11h 46m

Spokane

Sat 10/31

6:00 am-9:26 pm

2 stops12h 26m

$358

PortlandSpokane

PWM Portland - GEG Spokane

PWMGEG

Portland

Thu 9/10

2:03 pm-11:07 pm

2 stops12h 04m

Spokane

Mon 9/14

6:30 am-11:47 pm

2 stops14h 17m

$361

PortlandSpokane

PWM Portland - GEG Spokane

PWMGEG

Portland

Sat 9/5

6:02 am-11:38 am

1 stop8h 36m

Spokane

Sat 9/12

5:00 am-9:23 pm

2 stops13h 23m

$374

PortlandSpokane

PWM Portland - GEG Spokane

PWMGEG

Portland

Sat 9/5

12:06 pm-8:42 pm

2 stops11h 36m

Spokane

Sat 9/12

6:30 am-11:47 pm

2 stops14h 17m

$379

Quickest round-trip

PortlandBoise

PWM Portland - BOI Boise Air Term. Gowen Fld

PWMBOI

Portland

Sat 10/31

5:08 pm-10:51 pm

1 stop7h 43m

Boise Air Term. Gowen Fld

Tue 11/3

6:30 am-4:02 pm

1 stop7h 32m

$415

PortlandSpokane

PWM Portland - GEG Spokane

PWMGEG

Portland

Thu 9/10

6:00 am-11:28 am

1 stop8h 28m

Spokane

Mon 9/14

11:43 am-11:28 pm

1 stop8h 45m

$459

PortlandSpokane

PWM Portland - GEG Spokane

PWMGEG

Portland

Fri 8/28

2:14 pm-9:30 pm

1 stop10h 16m

Spokane

Tue 9/1

7:54 pm-10:45 am

2 stops11h 51m

$492

PortlandBoise

PWM Portland - BOI Boise Air Term. Gowen Fld

PWMBOI

Portland

Wed 10/7

5:40 am-2:45 pm

2 stops11h 05m

Boise Air Term. Gowen Fld

Sun 10/11

7:05 pm-9:50 am

2 stops12h 45m

$523

PortlandBoise

PWM Portland - BOI Boise Air Term. Gowen Fld

PWMBOI

Portland

Thu 10/1

4:45 pm-11:58 pm

2 stops9h 13m

Boise Air Term. Gowen Fld

Fri 10/9

11:10 pm-4:02 pm

2 stops14h 52m

$688

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, February 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 $0. If you don’t want to visit Idaho in February, then you should wait until January to fly from Portland, Maine, when ticket prices are also cheap, with an average price of $382.

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

You could potentially save up to 16% 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 03m
Direct flights	None

The fastest flight from Portland, Maine to Idaho takes 7h 03m

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

Search flight deals

Frequently asked questions about flying from Portland, Maine 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 3 operators available for flights from Portland Airport to Idaho as of August 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 $399	Free Cancellation	Rating 7.1 11,929 reviews		Search American Airlines flights
United Airlines	PriceFrom $485	Free Cancellation	Rating 7.4 10,108 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.