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Cheap flights from Idaho to Portland from $142

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 9/23. 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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Cheap round-trip flights

American Airlines Logo
1:26 pm - 10:45 pmBOI-PWM
7h 19m1 stop
American Airlines Logo
6:14 am - 12:46 pmPWM-BOI
8h 32m1 stop
$304American Airlines
Find Deal
Sat, Oct 25 - Tue, Oct 28
American Airlines Logo
1:26 pm - 10:45 pmBOI-PWM
7h 19m1 stop
American Airlines Logo
1:05 pm - 10:22 pmPWM-BOI
11h 17m2 stops
$309American Airlines
Find Deal
Sat, Oct 25 - Tue, Oct 28
Delta Logo
7:23 pm - 10:36 amGEG-PWM
12h 13m2 stops
Delta Logo
12:50 pm - 10:47 pmPWM-GEG
12h 57m2 stops
$314Delta
Find Deal
Mon, Oct 6 - Wed, Nov 12
Delta Logo
7:23 pm - 10:36 amGEG-PWM
12h 13m2 stops
Delta Logo
5:40 am - 11:36 amPWM-GEG
8h 56m1 stop
$330Delta
Find Deal
Mon, Oct 6 - Wed, Nov 12
United Airlines Logo
12:40 pm - 9:44 pmJAC-PWM
7h 04m1 stop
United Airlines Logo
3:20 pm - 8:37 pmPWM-JAC
7h 17m1 stop
$395United Airlines
Find Deal
Fri, Oct 24 - Sun, Nov 2
United Airlines Logo
12:34 pm - 9:59 pmJAC-PWM
7h 25m1 stop
United Airlines Logo
8:00 am - 6:32 pmPWM-JAC
12h 32m2 stops
$400United Airlines
Find Deal
Wed, Sep 24 - Sat, Oct 4
Southwest Logo
5:25 pm - 9:50 amBOI-PWM
14h 25m2 stops
Southwest Logo
8:15 am - 2:50 pmPWM-BOI
8h 35m2 stops
$487Southwest
Find Deal
Sun, Sep 7 - Sat, Sep 13
Southwest Logo
7:05 am - 10:25 pmGEG-PWM
12h 20m2 stops
Southwest Logo
5:35 am - 12:25 pmPWM-GEG
9h 50m2 stops
$497Southwest
Find Deal
Sun, Sep 7 - Sun, Sep 14
Alaska Airlines Logo
7:30 am - 8:36 pmGEG-PWM
10h 06m2 stops
Alaska Airlines Logo
12:29 pm - 11:15 pmPWM-GEG
13h 46m2 stops
$601Alaska Airlines
Find Deal
Sun, Oct 5 - Sun, Nov 9
Alaska Airlines Logo
7:30 am - 8:36 pmGEG-PWM
10h 06m2 stops
Alaska Airlines Logo
12:29 pm - 11:15 pmPWM-GEG
13h 46m2 stops
$623Alaska Airlines
Find Deal
Sun, Oct 5 - Sun, Nov 9

American Airlines flights from Idaho to Portland, Maine

Our best American Airlines deals on Idaho to Portland, Maine flight tickets
American Airlines
Oct 25
BOI1:26 pmBoise Air Term. Gowen Fld
7h 19m
1 stop
PWM10:45 pmPortland
Oct 28
PWM6:14 amPortland
8h 32m
1 stop
BOI12:46 pmBoise Air Term. Gowen Fld
$304
Find similar
American Airlines
Oct 25
BOI1:26 pmBoise Air Term. Gowen Fld
7h 19m
1 stop
PWM10:45 pmPortland
Oct 28
PWM1:05 pmPortland
11h 17m
2 stops
BOI10:22 pmBoise Air Term. Gowen Fld
$309
Find similar
American Airlines
Oct 8
BOI1:26 pmBoise Air Term. Gowen Fld
7h 19m
1 stop
PWM10:45 pmPortland
Oct 22
PWM6:14 amPortland
8h 32m
1 stop
BOI12:46 pmBoise Air Term. Gowen Fld
$351
Find similar

Delta flights from Idaho to Portland, Maine

Our best Delta deals on Idaho to Portland, Maine flight tickets
Delta
Oct 6
GEG7:23 pmSpokane
12h 13m
2 stops
PWM10:36 amPortland
Nov 12
PWM12:50 pmPortland
12h 57m
2 stops
GEG10:47 pmSpokane
$314
Find similar
Delta
Oct 6
GEG7:23 pmSpokane
12h 13m
2 stops
PWM10:36 amPortland
Nov 12
PWM5:40 amPortland
8h 56m
1 stop
GEG11:36 amSpokane
$330
Find similar
Delta
Oct 6
GEG7:23 pmSpokane
12h 13m
2 stops
PWM10:36 amPortland
Nov 12
PWM5:40 amPortland
8h 56m
1 stop
GEG11:36 amSpokane
$357
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 August 11, 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

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Sat 10/25

1:26 pm-10:45 pm

1 stop7h 19m

Portland

Tue 10/28

6:14 am-12:46 pm

1 stop8h 32m

$304

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Sat 10/25

1:26 pm-10:45 pm

1 stop7h 19m

Portland

Tue 10/28

1:05 pm-10:22 pm

2 stops11h 17m

$309

SpokanePortland

GEG - PWM

GEGPWM

Spokane

Mon 10/6

7:23 pm-10:36 am

2 stops12h 13m

Portland

Wed 11/12

12:50 pm-10:47 pm

2 stops12h 57m

$314

SpokanePortland

GEG - PWM

GEGPWM

Spokane

Mon 10/6

7:23 pm-10:36 am

2 stops12h 13m

Portland

Wed 11/12

5:40 am-11:36 am

1 stop8h 56m

$330

JacksonPortland

JAC - PWM

JACPWM

Jackson Hole

Fri 10/24

12:40 pm-9:44 pm

1 stop7h 04m

Portland

Sun 11/2

3:20 pm-8:37 pm

1 stop7h 17m

$395

JacksonPortland

JAC - PWM

JACPWM

Jackson Hole

Wed 9/24

12:34 pm-9:59 pm

1 stop7h 25m

Portland

Sat 10/4

8:00 am-6:32 pm

2 stops12h 32m

$400

BoisePortland

BOI - PWM

BOIPWM

Boise Air Term. Gowen Fld

Sun 9/7

5:25 pm-9:50 am

2 stops14h 25m

Portland

Sat 9/13

8:15 am-2:50 pm

2 stops8h 35m

$487

SpokanePortland

GEG - PWM

GEGPWM

Spokane

Sun 9/7

7:05 am-10:25 pm

2 stops12h 20m

Portland

Sun 9/14

5:35 am-12:25 pm

2 stops9h 50m

$497

SpokanePortland

GEG - PWM

GEGPWM

Spokane

Sun 10/5

7:30 am-8:36 pm

2 stops10h 06m

Portland

Sun 11/9

12:29 pm-11:15 pm

2 stops13h 46m

$601

SpokanePortland

GEG - PWM

GEGPWM

Spokane

Sun 10/5

7:30 am-8:36 pm

2 stops10h 06m

Portland

Sun 11/9

12:29 pm-11:15 pm

2 stops13h 46m

$623

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 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

$142

Fastest flight time

6h 40m

Direct flights

None

Airports in Portland, Maine

1 airport
The best one-way flight to Portland, Maine from Idaho in the past 72 hours is $142. The best round-trip flight deal from Idaho to Portland, Maine found on momondo in the last 72 hours is $304.
The fastest flight from Idaho to Portland, Maine takes 6h 40m
There are no direct flights from Idaho to Portland, Maine. Popular non-direct routes for this connection are Spokane Airport - Portland Airport, Boise Air Term. Gowen Fld Airport - Portland Airport and Jackson Hole Airport - Portland Airport.
There is 1 airport near Portland, Maine: Portland (PWM)
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
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $410Free CancellationRating
8.0
4,248 reviews
Search Southwest flights
United AirlinesPriceFrom $427Free CancellationRating
7.4
8,920 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
Conway
Freeport
Lewiston
Bartlett
Gorham
Brunswick
Auburn
Intervale
Windham
Bath
Falmouth
Georgetown
Oxford
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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