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Cheap flights from Idaho to Portland from $223

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 9/8. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Idaho to Portland

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
11:12 am - 12:59 am
BOI
-
PWM
11h 47m
2 stops
Delta Logo
6:05 am - 12:49 pm
PWM
-
BOI
8h 44m
1 stop
$326Delta
Thu, Aug 20 - Tue, Aug 25
Delta Logo
7:54 pm - 10:45 am
GEG
-
PWM
11h 51m
2 stops
Delta Logo
6:05 am - 11:21 am
PWM
-
GEG
8h 16m
1 stop
$326Delta
Tue, Aug 25 - Sat, Aug 29
Delta Logo
11:12 am - 12:59 am
BOI
-
PWM
11h 47m
2 stops
Delta Logo
4:47 pm - 11:59 pm
PWM
-
BOI
9h 12m
2 stops
$331Delta
Thu, Aug 20 - Tue, Aug 25
Delta Logo
7:54 pm - 10:45 am
GEG
-
PWM
11h 51m
2 stops
Delta Logo
6:05 am - 4:09 pm
PWM
-
GEG
13h 04m
2 stops
$331Delta
Tue, Aug 25 - Sat, Aug 29
American Airlines Logo
6:30 am - 10:13 pm
GEG
-
PWM
12h 43m
2 stops
American Airlines Logo
6:30 am - 1:19 pm
PWM
-
GEG
9h 49m
1 stop
$348American Airlines
Tue, Sep 15 - Tue, Sep 22
American Airlines Logo
6:30 am - 10:13 pm
GEG
-
PWM
12h 43m
2 stops
American Airlines Logo
7:32 am - 7:39 pm
PWM
-
GEG
15h 07m
2 stops
$353American Airlines
Tue, Sep 15 - Tue, Sep 22
United Airlines Logo
10:35 am - 11:23 pm
IDA
-
PWM
10h 48m
2 stops
United Airlines Logo
3:27 pm - 9:21 pm
PWM
-
IDA
7h 54m
1 stop
$375United Airlines
Tue, Nov 3 - Tue, Nov 10
Southwest Logo
6:15 pm - 9:45 am
GEG
-
PWM
12h 30m
2 stops
Southwest Logo
9:25 am - 8:20 pm
PWM
-
GEG
13h 55m
2 stops
$394Southwest
Fri, Oct 16 - Sat, Oct 24
Southwest Logo
2:15 pm - 9:40 am
GEG
-
PWM
16h 25m
2 stops
Southwest Logo
9:25 am - 8:20 pm
PWM
-
GEG
13h 55m
2 stops
$400Southwest
Sat, Oct 17 - Sat, Oct 24
United Airlines Logo
12:24 pm - 9:23 pm
BOI
-
PWM
6h 59m
1 stop
United Airlines Logo
6:00 am - 11:28 am
PWM
-
BOI
7h 28m
1 stop
$416United Airlines
Thu, Aug 20 - Tue, Aug 25

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United Airlines flights from Idaho to Portland, Maine

Our best United Airlines deals on Idaho to Portland, Maine flight tickets
United Airlines
Nov 3
IDA10:35 amIdaho Falls Fanning Field
10h 48m
2 stops
PWM11:23 pmPortland
Nov 10
PWM3:27 pmPortland
7h 54m
1 stop
IDA9:21 pmIdaho Falls Fanning Field
$375
United Airlines
Aug 20
BOI12:24 pmBoise Air Term. Gowen Fld
6h 59m
1 stop
PWM9:23 pmPortland
Aug 25
PWM6:00 amPortland
7h 28m
1 stop
BOI11:28 amBoise Air Term. Gowen Fld
$416
United Airlines
Aug 25
GEG5:00 amSpokane
7h 51m
1 stop
PWM3:51 pmPortland
Aug 29
PWM6:03 amPortland
9h 20m
1 stop
GEG12:23 pmSpokane
$427

American Airlines flights from Idaho to Portland, Maine

Our best American Airlines deals on Idaho to Portland, Maine flight tickets
American Airlines
Sep 15
GEG6:30 amSpokane
12h 43m
2 stops
PWM10:13 pmPortland
Sep 22
PWM6:30 amPortland
9h 49m
1 stop
GEG1:19 pmSpokane
$348
American Airlines
Sep 15
GEG6:30 amSpokane
12h 43m
2 stops
PWM10:13 pmPortland
Sep 22
PWM7:32 amPortland
15h 07m
2 stops
GEG7:39 pmSpokane
$353
American Airlines
Sep 15
GEG5:00 amSpokane
10h 46m
1 stop
PWM6:46 pmPortland
Sep 22
PWM6:30 amPortland
9h 49m
1 stop
GEG1:19 pmSpokane
$358

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 July 8, 2026.
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

Cheapest round-trip

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Thu 8/20

11:12 am-12:59 am

2 stops11h 47m

Portland

Tue 8/25

6:05 am-12:49 pm

1 stop8h 44m

$326

SpokanePortland

GEG - PWM

GEGPWM

Spokane

Tue 8/25

7:54 pm-10:45 am

2 stops11h 51m

Portland

Sat 8/29

6:05 am-11:21 am

1 stop8h 16m

$326

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Thu 8/20

11:12 am-12:59 am

2 stops11h 47m

Portland

Tue 8/25

4:47 pm-11:59 pm

2 stops9h 12m

$331

SpokanePortland

GEG - PWM

GEGPWM

Spokane

Tue 8/25

7:54 pm-10:45 am

2 stops11h 51m

Portland

Sat 8/29

6:05 am-4:09 pm

2 stops13h 04m

$331

SpokanePortland

GEG - PWM

GEGPWM

Spokane

Tue 9/15

6:30 am-10:13 pm

2 stops12h 43m

Portland

Tue 9/22

6:30 am-1:19 pm

1 stop9h 49m

$348

SpokanePortland

GEG - PWM

GEGPWM

Spokane

Tue 9/15

6:30 am-10:13 pm

2 stops12h 43m

Portland

Tue 9/22

7:32 am-7:39 pm

2 stops15h 07m

$353

Idaho FallsPortland

IDA - PWM

IDAPWM

Idaho Falls Fanning Field

Tue 11/3

10:35 am-11:23 pm

2 stops10h 48m

Portland

Tue 11/10

3:27 pm-9:21 pm

1 stop7h 54m

$375

SpokanePortland

GEG - PWM

GEGPWM

Spokane

Fri 10/16

6:15 pm-9:45 am

2 stops12h 30m

Portland

Sat 10/24

9:25 am-8:20 pm

2 stops13h 55m

$394

SpokanePortland

GEG - PWM

GEGPWM

Spokane

Sat 10/17

2:15 pm-9:40 am

2 stops16h 25m

Portland

Sat 10/24

9:25 am-8:20 pm

2 stops13h 55m

$400
Quickest round-trip

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Thu 8/20

12:24 pm-9:23 pm

1 stop6h 59m

Portland

Tue 8/25

6:00 am-11:28 am

1 stop7h 28m

$416

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 month to fly to Portland, Maine?

The cheapest month to fly to Portland, Maine from Idaho is in December. Flight prices, which tend to average around $0, 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 December, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $364.

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

You could potentially save up to 53% 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

6h 40m

Direct flights

None
The fastest flight from Idaho to Portland, Maine takes 6h 40m
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?

  • 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
7.1
11,783 reviews
Search American Airlines flights
SouthwestPriceFrom $397Free CancellationRating
7.9
4,249 reviews
Search Southwest flights
United AirlinesPriceFrom $521Free CancellationRating
7.4
9,948 reviews
Search United Airlines 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
Lewiston
Brunswick
Conway
Freeport
Bartlett
Auburn
Gorham
Windham
Bath
Intervale
Oxford
Falmouth
Georgetown
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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