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Cheap flights from Idaho Falls to Portland from $379

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 Falls to Portland departing on 10/11. 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

Find the cheapest flights from Idaho Falls to Portland

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
7:00 am - 3:51 pm-
6h 51m
United Airlines Logo
5:52 am - 5:16 pm-
13h 24m
$384United Airlines
Sat, Aug 29 - Sun, Aug 30
American Airlines Logo
1:43 pm - 10:48 pm-
7h 05m
American Airlines Logo
7:28 am - 9:20 pm-
15h 52m
$444American Airlines
Tue, Aug 18 - Tue, Aug 25
United Airlines Logo
7:00 am - 4:02 pm-
7h 02m
United Airlines Logo
3:23 pm - 9:09 pm-
7h 46m
$489United Airlines
Tue, Nov 3 - Sat, Nov 7
United Airlines Logo
10:35 am - 11:21 pm-
10h 46m
United Airlines Logo
3:23 pm - 9:09 pm-
7h 46m
$494United Airlines
Tue, Nov 3 - Sat, Nov 7
United Airlines Logo
7:00 am - 4:02 pm-
7h 02m
United Airlines Logo
6:00 am - 3:38 pm-
11h 38m
$494United Airlines
Tue, Nov 3 - Sat, Nov 7
United Airlines Logo
10:35 am - 11:21 pm-
10h 46m
United Airlines Logo
6:00 am - 3:38 pm-
11h 38m
$499United Airlines
Tue, Nov 3 - Sat, Nov 7
United Airlines Logo
7:00 am - 9:23 pm-
12h 23m
United Airlines Logo
5:52 am - 1:29 pm-
9h 37m
$519United Airlines
Sat, Aug 29 - Sun, Aug 30
American Airlines Logo
1:43 pm - 10:48 pm-
7h 05m
American Airlines Logo
12:09 pm - 1:09 pm-
27h 00m
$538American Airlines
Tue, Aug 18 - Tue, Aug 25
American Airlines Logo
7:00 am - 10:00 pm-
13h 00m
American Airlines Logo
7:28 am - 9:20 pm-
15h 52m
$552American Airlines
Tue, Aug 18 - Tue, Aug 25
American Airlines Logo
1:50 pm - 11:43 pm-
7h 53m
American Airlines Logo
11:27 am - 9:42 pm-
12h 15m
$668American Airlines
Sat, Oct 10 - Wed, Oct 14

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American Airlines flights from Idaho Falls to Portland, Maine

Our best American Airlines deals on Idaho Falls to Portland, Maine flight tickets
American Airlines
Aug 18
IDA1:43 pmIdaho Falls Fanning Field
7h 05m
1 stop
PWM10:48 pmPortland
Aug 25
PWM7:28 amPortland
15h 52m
2 stops
IDA9:20 pmIdaho Falls Fanning Field
$444
American Airlines
Aug 18
IDA1:43 pmIdaho Falls Fanning Field
7h 05m
1 stop
PWM10:48 pmPortland
Aug 25
PWM12:09 pmPortland
27h 00m
1 stop
IDA1:09 pmIdaho Falls Fanning Field
$538
American Airlines
Aug 18
IDA7:00 amIdaho Falls Fanning Field
13h 00m
2 stops
PWM10:00 pmPortland
Aug 25
PWM7:28 amPortland
15h 52m
2 stops
IDA9:20 pmIdaho Falls Fanning Field
$552

United Airlines flights from Idaho Falls to Portland, Maine

Our best United Airlines deals on Idaho Falls to Portland, Maine flight tickets
United Airlines
Aug 29
IDA7:00 amIdaho Falls Fanning Field
6h 51m
1 stop
PWM3:51 pmPortland
Aug 30
PWM5:52 amPortland
13h 24m
2 stops
IDA5:16 pmIdaho Falls Fanning Field
$384
United Airlines
Nov 3
IDA7:00 amIdaho Falls Fanning Field
7h 02m
1 stop
PWM4:02 pmPortland
Nov 7
PWM3:23 pmPortland
7h 46m
1 stop
IDA9:09 pmIdaho Falls Fanning Field
$489
United Airlines
Nov 3
IDA7:00 amIdaho Falls Fanning Field
7h 02m
1 stop
PWM4:02 pmPortland
Nov 7
PWM6:00 amPortland
11h 38m
2 stops
IDA3:38 pmIdaho Falls Fanning Field
$494

momondo Fare Finder

 
Customize your flight search to find flights from Idaho Falls 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 5, 2026.
Use the filters below to find and compare flights from Idaho Falls to Portland, Maine that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Idaho FallsPortland

IDA - PWM

IDAPWM

Idaho Falls Fanning Field

Sat 8/29

7:00 am-3:51 pm

1 stop6h 51m

Portland

Sun 8/30

5:52 am-5:16 pm

2 stops13h 24m

$384

Idaho FallsPortland

IDA - PWM

IDAPWM

Idaho Falls Fanning Field

Tue 8/18

1:43 pm-10:48 pm

1 stop7h 05m

Portland

Tue 8/25

7:28 am-9:20 pm

2 stops15h 52m

$444
Quickest round-trip

Idaho FallsPortland

IDA - PWM

IDAPWM

Idaho Falls Fanning Field

Tue 11/3

7:00 am-4:02 pm

1 stop7h 02m

Portland

Sat 11/7

3:23 pm-9:09 pm

1 stop7h 46m

$489

Idaho FallsPortland

IDA - PWM

IDAPWM

Idaho Falls Fanning Field

Tue 11/3

10:35 am-11:21 pm

2 stops10h 46m

Portland

Sat 11/7

3:23 pm-9:09 pm

1 stop7h 46m

$494

Idaho FallsPortland

IDA - PWM

IDAPWM

Idaho Falls Fanning Field

Tue 11/3

7:00 am-4:02 pm

1 stop7h 02m

Portland

Sat 11/7

6:00 am-3:38 pm

2 stops11h 38m

$494

Idaho FallsPortland

IDA - PWM

IDAPWM

Idaho Falls Fanning Field

Tue 11/3

10:35 am-11:21 pm

2 stops10h 46m

Portland

Sat 11/7

6:00 am-3:38 pm

2 stops11h 38m

$499

Idaho FallsPortland

IDA - PWM

IDAPWM

Idaho Falls Fanning Field

Sat 8/29

7:00 am-9:23 pm

2 stops12h 23m

Portland

Sun 8/30

5:52 am-1:29 pm

2 stops9h 37m

$519

Idaho FallsPortland

IDA - PWM

IDAPWM

Idaho Falls Fanning Field

Tue 8/18

1:43 pm-10:48 pm

1 stop7h 05m

Portland

Tue 8/25

12:09 pm-1:09 pm

1 stop27h 00m

$538

Idaho FallsPortland

IDA - PWM

IDAPWM

Idaho Falls Fanning Field

Tue 8/18

7:00 am-10:00 pm

2 stops13h 00m

Portland

Tue 8/25

7:28 am-9:20 pm

2 stops15h 52m

$552

Idaho FallsPortland

IDA - PWM

IDAPWM

Idaho Falls Fanning Field

Sat 10/10

1:50 pm-11:43 pm

1 stop7h 53m

Portland

Wed 10/14

11:27 am-9:42 pm

2 stops12h 15m

$668

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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See travel insights to Portland from

How to get the cheapest flight ticket from Idaho Falls 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 airline that flies from Idaho Falls Fanning Field to Portland?

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

What airlines fly to Portland, Maine?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Portland, Maine from Idaho Falls according to our data. United Airlines is the first choice among our users, with 64% of people opting to fly with this airline when traveling to Portland, Maine. Keep in mind that there are 4 different airlines that fly to Portland, Maine on a routine basis, so you have a few additional options to choose from.

When to book flights from Idaho Falls to Portland, Maine

Are you open to changing your travel dates? Check out the ideal times to fly from Idaho Falls to Portland, Maine according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Idaho Falls to Portland, Maine (IDA to PWM) flight deals and tips

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

Fastest flight time

6h 51m

Direct flights

None
The fastest flight from Idaho Falls to Portland, Maine takes 6h 51m
There are no direct flights from Idaho Falls to Portland, Maine. There are no popular flight routes from Idaho Falls to Portland, Maine.
Search flight deals

Frequently asked questions about flying from Idaho Falls to Portland, Maine

  • How far is Idaho Falls Fanning Field to Portland by plane?

    There are 2067.7 mi between Idaho Falls Fanning Field and Portland. A reasonable flight in good conditions will take 6h 51m.

  • When did momondo last update prices for flights from Idaho Falls Fanning Field Airport to Portland Airport?

    Prices for flights from Idaho Falls Fanning Field Airport to Portland Airport were last updated today.

  • How old do you have to be to fly from Idaho Falls Fanning Field Airport to Portland Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Idaho Falls Fanning Field Airport to Portland Airport.

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

    The travel and health documents required for your trip to Portland Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Portland Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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
Freeport
Conway
Gorham
Bartlett
Auburn
Windham
Intervale
Bath
Oxford
Georgetown
Falmouth
Tamworth

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Idaho Falls to Portland. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. All flights to Portland from Idaho Falls on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to Portland from Idaho Falls. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Portland from Idaho Falls. 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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