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Cheap flights from Idaho to Portland from $170

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 3/24. 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

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Find the cheapest flights from Idaho to Portland

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
8:09 am - 11:43 pm
SUN
-
PWM
13h 34m2 stops
American Airlines Logo
6:00 am - 8:17 pm
PWM
-
SUN
16h 17m2 stops
$359American Airlines
Tue, Jan 13 - Sat, Jan 17
United Airlines Logo
7:05 pm - 9:01 am
BOI
-
PWM
11h 56m2 stops
United Airlines Logo
4:10 pm - 10:57 pm
PWM
-
BOI
8h 47m1 stop
$412United Airlines
Sat, Jan 17 - Tue, Jan 20
United Airlines Logo
7:05 pm - 9:01 am
BOI
-
PWM
11h 56m2 stops
United Airlines Logo
4:10 pm - 10:57 pm
PWM
-
BOI
8h 47m1 stop
$442United Airlines
Sat, Jan 17 - Wed, Jan 21
United Airlines Logo
7:05 pm - 9:01 am
BOI
-
PWM
11h 56m2 stops
United Airlines Logo
11:12 am - 10:57 pm
PWM
-
BOI
13h 45m2 stops
$447United Airlines
Sat, Jan 17 - Tue, Jan 20
United Airlines Logo
2:00 pm - 11:30 pm
JAC
-
PWM
7h 30m1 stop
United Airlines Logo
11:12 am - 8:42 pm
PWM
-
JAC
11h 30m2 stops
$454United Airlines
Fri, Jan 16 - Tue, Jan 20
American Airlines Logo
6:00 am - 10:50 pm
GEG
-
PWM
13h 50m2 stops
American Airlines Logo
12:49 pm - 11:10 pm
PWM
-
GEG
13h 21m2 stops
$486American Airlines
Sat, Mar 28 - Sat, Apr 4
American Airlines Logo
6:00 am - 10:50 pm
GEG
-
PWM
13h 50m2 stops
American Airlines Logo
12:49 pm - 11:10 pm
PWM
-
GEG
13h 21m2 stops
$489American Airlines
Sat, Mar 28 - Sat, Apr 4
Southwest Logo
5:55 am - 12:05 am
GEG
-
PWM
15h 10m2 stops
Southwest Logo
2:50 pm - 1:05 am
PWM
-
GEG
13h 15m2 stops
$505Southwest
Fri, Mar 13 - Mon, Mar 30
Southwest Logo
6:35 pm - 11:15 am
BOI
-
PWM
14h 40m2 stops
Southwest Logo
5:35 am - 10:55 pm
PWM
-
BOI
19h 20m2 stops
$510Southwest
Thu, Feb 12 - Tue, Feb 17
Delta Logo
1:43 pm - 11:06 pm
BOI
-
PWM
7h 23m1 stop
Delta Logo
12:43 pm - 8:55 pm
PWM
-
BOI
10h 12m2 stops
$774Delta
Thu, Feb 12 - Tue, Feb 17

Southwest flights from Idaho to Portland, Maine

Our best Southwest deals on Idaho to Portland, Maine flight tickets
Southwest
Mar 13
GEG5:55 amSpokane
15h 10m
2 stops
PWM12:05 amPortland
Mar 30
PWM2:50 pmPortland
13h 15m
2 stops
GEG1:05 amSpokane
$505
Find similar
Southwest
Feb 12
BOI6:35 pmBoise Air Term. Gowen Fld
14h 40m
2 stops
PWM11:15 amPortland
Feb 17
PWM5:35 amPortland
19h 20m
2 stops
BOI10:55 pmBoise Air Term. Gowen Fld
$510
Find similar

Delta flights from Idaho to Portland, Maine

Our best Delta deals on Idaho to Portland, Maine flight tickets
Delta
Jun 6
GEG7:55 amSpokane
13h 04m
2 stops
PWM11:59 pmPortland
Jun 13
PWM12:50 pmPortland
13h 54m
2 stops
GEG11:44 pmSpokane
$613
Find similar
Delta
Feb 12
BOI1:43 pmBoise Air Term. Gowen Fld
7h 23m
1 stop
PWM11:06 pmPortland
Feb 17
PWM12:43 pmPortland
10h 12m
2 stops
BOI8:55 pmBoise Air Term. Gowen Fld
$774
Find similar
Delta
Mar 28
GEG12:35 pmSpokane
7h 47m
1 stop
PWM11:22 pmPortland
Apr 4
PWM5:18 amPortland
9h 21m
1 stop
GEG11:39 amSpokane
$803
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Idaho to Portland, Maine 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 December 27, 2025.
Use the filters below to find and compare flights from Idaho to Portland, Maine that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HaileyPortland

SUN - PWM

SUNPWM

Hailey Sun Valley-Friedman

Tue 1/13

8:09 am-11:43 pm

2 stops13h 34m

Portland

Sat 1/17

6:00 am-8:17 pm

2 stops16h 17m

$359

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Sat 1/17

7:05 pm-9:01 am

2 stops11h 56m

Portland

Tue 1/20

4:10 pm-10:57 pm

1 stop8h 47m

$412

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Sat 1/17

7:05 pm-9:01 am

2 stops11h 56m

Portland

Wed 1/21

4:10 pm-10:57 pm

1 stop8h 47m

$442

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Sat 1/17

7:05 pm-9:01 am

2 stops11h 56m

Portland

Tue 1/20

11:12 am-10:57 pm

2 stops13h 45m

$447

JacksonPortland

JAC - PWM

JACPWM

Jackson Hole

Fri 1/16

2:00 pm-11:30 pm

1 stop7h 30m

Portland

Tue 1/20

11:12 am-8:42 pm

2 stops11h 30m

$454

SpokanePortland

GEG - PWM

GEGPWM

Spokane

Sat 3/28

6:00 am-10:50 pm

2 stops13h 50m

Portland

Sat 4/4

12:49 pm-11:10 pm

2 stops13h 21m

$486

SpokanePortland

GEG - PWM

GEGPWM

Spokane

Sat 3/28

6:00 am-10:50 pm

2 stops13h 50m

Portland

Sat 4/4

12:49 pm-11:10 pm

2 stops13h 21m

$489

SpokanePortland

GEG - PWM

GEGPWM

Spokane

Fri 3/13

5:55 am-12:05 am

2 stops15h 10m

Portland

Mon 3/30

2:50 pm-1:05 am

2 stops13h 15m

$505

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Thu 2/12

6:35 pm-11:15 am

2 stops14h 40m

Portland

Tue 2/17

5:35 am-10:55 pm

2 stops19h 20m

$510

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Thu 2/12

1:43 pm-11:06 pm

1 stop7h 23m

Portland

Tue 2/17

12:43 pm-8:55 pm

2 stops10h 12m

$774

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Portland from

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

What is the cheapest day to depart on your flight to Portland, Maine?

On average, the least expensive day to fly to Portland, Maine from Idaho is on a Saturday. momondo users have found tickets for Saturday departures for as low as $503. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Idaho because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,097.

What is the cheapest time of day to depart on your flight to Portland, Maine?

In the evening is the cheapest time of day to fly from Idaho to Portland, Maine when you can find flight prices for as low as $501. Flying to Portland, Maine in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $830. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You could potentially save up to 6% 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

Fastest flight time

7h 23m

Direct flights

None
The fastest flight from Idaho to Portland, Maine takes 7h 23m
There are no direct flights from Idaho to Portland, Maine. There are no popular flight routes from Idaho to Portland, Maine.
Search flight deals

  • 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?

  • 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
American AirlinesPriceFrom $364Free CancellationRating
7.2
11,073 reviews
Search American Airlines flights
United AirlinesPriceFrom $391Free CancellationRating
7.4
9,113 reviews
Search United Airlines flights
SouthwestPriceFrom $410Free CancellationRating
8.0
4,256 reviews
Search Southwest flights

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
North Conway
Boothbay Harbor
Jackson
Conway
Freeport
Lewiston
Brunswick
Bartlett
Gorham
Auburn
Windham
Intervale
Oxford
Bath
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.

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.
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