What airlines fly to Portland, Maine?

Delta, United Airlines and American Airlines are the top three most popular airlines that fly to Portland, Maine from Idaho according to our data. Delta is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Portland, Maine. Keep in mind that there are 5 different airlines that fly to Portland, Maine on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to Portland, Maine?

The flight from Idaho to Portland, Maine depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Hailey (a popular airport in Idaho) to Boston (the most popular airport in Portland, Maine), then the flight time is 6h 29m on average. If you fly from Boise (another popular airport in Idaho) to Boston, then the average flight time is 6h 38m.

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

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

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

Prices for flights from Idaho to Portland Airport refresh daily.

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

As of October 2026, there are 2 operators available to choose from for flights from Idaho to Portland Airport.

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

What documentation or ID do you need to fly to Portland Airport?

The necessary travel and health documents for your Portland Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$185 Cheap Flights from Idaho to Portland, Maine in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Idaho to Portland

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One-way

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Cheap round-trip flights

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11:32 am - 12:10 amBOI Boise Air Term. Gowen Fld-PWM Portland

10h 38m2 stops Salt Lake City New York John F Kennedy Intl

11:55 am - 6:46 pmPWM Portland-BOI Boise Air Term. Gowen Fld

8h 51m2 stops Minneapolis St Paul Salt Lake City

$380Delta

Mon, Nov 2 - Sat, Nov 7

12:31 pm - 9:52 pmBOI Boise Air Term. Gowen Fld-PWM Portland

7h 21m1 stop Chicago O'Hare Intl

3:23 pm - 10:59 pmPWM Portland-BOI Boise Air Term. Gowen Fld

9h 36m1 stop Denver Intl

$401United Airlines

Fri, Nov 13 - Sun, Nov 15

11:32 am - 12:10 amBOI Boise Air Term. Gowen Fld-PWM Portland

10h 38m2 stops Salt Lake City New York John F Kennedy Intl

6:01 am - 1:34 pmPWM Portland-BOI Boise Air Term. Gowen Fld

9h 33m1 stop Atlanta Hartsfield-Jackson

$439Delta

Mon, Nov 2 - Sat, Nov 7

12:31 pm - 11:59 pmBOI Boise Air Term. Gowen Fld-PWM Portland

9h 28m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

3:23 pm - 10:59 pmPWM Portland-BOI Boise Air Term. Gowen Fld

9h 36m1 stop Denver Intl

$460United Airlines

Fri, Nov 13 - Sun, Nov 15

10:15 am - 11:55 pmBOI Boise Air Term. Gowen Fld-PWM Portland

11h 40m2 stops San Jose Baltimore/Washington

1:40 pm - 12:55 amPWM Portland-BOI Boise Air Term. Gowen Fld

13h 15m2 stops Baltimore/Washington Phoenix Sky Harbor Intl

$484Southwest

Fri, Nov 13 - Sun, Nov 15

5:00 am - 4:02 pmBOI Boise Air Term. Gowen Fld-PWM Portland

9h 02m1 stop Denver Intl

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

7h 43m1 stop Chicago O'Hare Intl

$499United Airlines

Tue, Nov 10 - Sat, Nov 14

6:06 am - 9:36 pmBOI Boise Air Term. Gowen Fld-PWM Portland

13h 30m2 stops Phoenix Sky Harbor Intl Charlotte Douglas

6:00 am - 7:24 pmPWM Portland-BOI Boise Air Term. Gowen Fld

15h 24m2 stops Philadelphia Phoenix Sky Harbor Intl

$504American Airlines

Mon, Nov 2 - Sat, Nov 7

7:30 am - 11:22 pmIDA Idaho Falls Fanning Field-PWM Portland

13h 52m2 stops Phoenix Sky Harbor Intl Philadelphia

11:56 am - 11:32 pmPWM Portland-IDA Idaho Falls Fanning Field

13h 36m2 stops Charlotte Douglas Phoenix Sky Harbor Intl

$510American Airlines

Tue, Apr 6 - Tue, Apr 13

6:30 am - 10:56 pmIDA Idaho Falls Fanning Field-PWM Portland

14h 26m2 stops Phoenix Sky Harbor Intl Charlotte Douglas

12:18 pm - 10:24 pmPWM Portland-IDA Idaho Falls Fanning Field

12h 06m2 stops Chicago O'Hare Intl Phoenix Sky Harbor Intl

$561American Airlines

Tue, Feb 16 - Tue, Feb 23

6:09 am - 9:34 pmIDA Idaho Falls Fanning Field-PWM Portland

13h 25m2 stops Seattle/Tacoma Intl Philadelphia

5:15 am - 3:18 pmPWM Portland-IDA Idaho Falls Fanning Field

12h 03m2 stops Washington, D.C. Reagan-National Seattle/Tacoma Intl

$1,081Alaska Airlines

Wed, Oct 28 - Sun, Nov 1

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Delta flights from Idaho to Portland, Maine

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

Delta

Nov 2

BOI11:32 amBoise Air Term. Gowen Fld

10h 38m

2 stops

PWM12:10 amPortland

Nov 7

PWM11:55 amPortland

8h 51m

2 stops

BOI6:46 pmBoise Air Term. Gowen Fld

$380

Delta

Nov 2

BOI11:32 amBoise Air Term. Gowen Fld

10h 38m

2 stops

PWM12:10 amPortland

Nov 7

PWM6:01 amPortland

9h 33m

1 stop

BOI1:34 pmBoise Air Term. Gowen Fld

$439

Delta

Dec 25

BOI8:51 amBoise Air Term. Gowen Fld

25h 45m

2 stops

PWM12:36 pmPortland

Jan 1

PWM5:35 amPortland

14h 05m

2 stops

BOI5:40 pmBoise Air Term. Gowen Fld

$827

United Airlines flights from Idaho to Portland, Maine

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

United Airlines

Nov 13

BOI12:31 pmBoise Air Term. Gowen Fld

7h 21m

1 stop

PWM9:52 pmPortland

Nov 15

PWM3:23 pmPortland

9h 36m

1 stop

BOI10:59 pmBoise Air Term. Gowen Fld

$401

United Airlines

Nov 13

BOI12:31 pmBoise Air Term. Gowen Fld

9h 28m

2 stops

PWM11:59 pmPortland

Nov 15

PWM3:23 pmPortland

9h 36m

1 stop

BOI10:59 pmBoise Air Term. Gowen Fld

$460

United Airlines

Nov 10

BOI5:00 amBoise Air Term. Gowen Fld

9h 02m

1 stop

PWM4:02 pmPortland

Nov 14

PWM5:08 pmPortland

7h 43m

1 stop

BOI10:51 pmBoise Air Term. Gowen Fld

$499

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoisePortland

BOI Boise Air Term. Gowen Fld - PWM Portland

BOIPWM

Boise Air Term. Gowen Fld

Mon 11/2

11:32 am-12:10 am

2 stops10h 38m

Portland

Sat 11/7

11:55 am-6:46 pm

2 stops8h 51m

$380

BoisePortland

BOI Boise Air Term. Gowen Fld - PWM Portland

BOIPWM

Boise Air Term. Gowen Fld

Fri 11/13

12:31 pm-9:52 pm

1 stop7h 21m

Portland

Sun 11/15

3:23 pm-10:59 pm

1 stop9h 36m

$401

BoisePortland

BOI Boise Air Term. Gowen Fld - PWM Portland

BOIPWM

Boise Air Term. Gowen Fld

Mon 11/2

11:32 am-12:10 am

2 stops10h 38m

Portland

Sat 11/7

6:01 am-1:34 pm

1 stop9h 33m

$439

BoisePortland

BOI Boise Air Term. Gowen Fld - PWM Portland

BOIPWM

Boise Air Term. Gowen Fld

Fri 11/13

12:31 pm-11:59 pm

2 stops9h 28m

Portland

Sun 11/15

3:23 pm-10:59 pm

1 stop9h 36m

$460

BoisePortland

BOI Boise Air Term. Gowen Fld - PWM Portland

BOIPWM

Boise Air Term. Gowen Fld

Fri 11/13

10:15 am-11:55 pm

2 stops11h 40m

Portland

Sun 11/15

1:40 pm-12:55 am

2 stops13h 15m

$484

Quickest round-trip

BoisePortland

BOI Boise Air Term. Gowen Fld - PWM Portland

BOIPWM

Boise Air Term. Gowen Fld

Tue 11/10

5:00 am-4:02 pm

1 stop9h 02m

Portland

Sat 11/14

5:08 pm-10:51 pm

1 stop7h 43m

$499

BoisePortland

BOI Boise Air Term. Gowen Fld - PWM Portland

BOIPWM

Boise Air Term. Gowen Fld

Mon 11/2

6:06 am-9:36 pm

2 stops13h 30m

Portland

Sat 11/7

6:00 am-7:24 pm

2 stops15h 24m

$504

Idaho FallsPortland

IDA Idaho Falls Fanning Field - PWM Portland

IDAPWM

Idaho Falls Fanning Field

Tue 4/6

7:30 am-11:22 pm

2 stops13h 52m

Portland

Tue 4/13

11:56 am-11:32 pm

2 stops13h 36m

$510

Idaho FallsPortland

IDA Idaho Falls Fanning Field - PWM Portland

IDAPWM

Idaho Falls Fanning Field

Tue 2/16

6:30 am-10:56 pm

2 stops14h 26m

Portland

Tue 2/23

12:18 pm-10:24 pm

2 stops12h 06m

$561

Idaho FallsPortland

IDA Idaho Falls Fanning Field - PWM Portland

IDAPWM

Idaho Falls Fanning Field

Wed 10/28

6:09 am-9:34 pm

2 stops13h 25m

Portland

Sun 11/1

5:15 am-3:18 pm

2 stops12h 03m

$1,081

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 Idaho to Portland, Maine

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

Other information

What is the cheapest month to fly to Portland, Maine?

The cheapest month to fly to Portland, Maine from Idaho is in September. Flight prices, which tend to average around $474, are often lower during this time because this is during the off-season. If you aren’t able to travel to Portland, Maine during the month of September, then flying in June is also cheap. Prices for this month can be found on momondo for an average of $498.

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

You could potentially save up to 16% on your flight if you consider stops on a Idaho to Portland, Maine flight.

Cheap Idaho to Portland, Maine flight deals and tips

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

Best Price Found	$185
Fastest flight time	7h 02m
Direct flights	None

The best one-way flight to Portland, Maine from Idaho in the past 72 hours is $185. The best round-trip flight deal from Idaho to Portland, Maine found on momondo in the last 72 hours is $380.

The fastest flight from Idaho to Portland, Maine takes 7h 02m

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

Search flight deals

Frequently asked questions about flying from Idaho to Portland, Maine

When did momondo last update prices for flights from Idaho to Portland Airport?
Prices for flights from Idaho to Portland Airport refresh daily.
How many operators does momondo search for flights from Idaho to Portland Airport?
As of October 2026, there are 2 operators available to choose from for flights from Idaho to Portland Airport.
How old do you have to be to fly from Idaho to Portland 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 Idaho to Portland Airport.
What documentation or ID do you need to fly to Portland Airport?
The necessary travel and health documents for your Portland Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Idaho to Portland, Maine

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

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $368	Free Cancellation	Rating 7.4 10,362 reviews		Search United Airlines flights
American Airlines	PriceFrom $378	Free Cancellation	Rating 7.0 12,165 reviews		Search American Airlines flights

North Conway

Jackson

Boothbay Harbor

Brunswick

Lewiston

Freeport

Conway

Auburn

Gorham

Bartlett

Bath

Windham

Oxford

Intervale

Georgetown

Falmouth

Tamworth

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Idaho to Portland. momondo saves you time and could save you money on your trip.

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

Yes. momondo enables you to select and highlight flights to Portland from Idaho with this policy.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Portland from Idaho.

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

Yes momondo offers price alerts on flights to Portland from Idaho. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Cheap flights from Idaho to Portland from $185

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho to Portland departing on 11/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Delta flights from Idaho to Portland, Maine

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

United Airlines flights from Idaho to Portland, Maine

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

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

What is the cheapest month to fly to Portland, Maine?

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

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

What airlines fly to Portland, Maine?

How long does it take to fly to Portland, Maine?

Cheap Idaho to Portland, Maine flight deals and tips

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Frequently asked questions about flying from Idaho to Portland, Maine

Best airlines flying from Idaho to Portland, Maine

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

Traveling to a place near Portland?

Why use momondo?

An easier way to manage your Portland, Maine 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

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Fly your favorite airline to Portland

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Portland

List of cabin classes available on flights landing in Portland. Availability may vary depending on flight origin and airline.

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