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$329+ Cheap flights from Idaho Falls to Portland, ME (IDA - PWM)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — PWM
Mar 6 — Mar 131
Fri 3/6
Fri 3/13
1 adult, Economy
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Cheap flight deals from Idaho Falls to Portland

Cheapest flights from Idaho Falls to Portland
Explore the most affordable flight options available from Idaho Falls to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 4, 2026.

This American Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/301:44 pm
IDA
-
PWM
1 stop8h 29m
American Airlines
Wed 10/147:14 am
PWM
-
IDA
1 stop7h 06m
American Airlines
Deal found 2/2$329
This American Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/281:44 pm
IDA
-
PWM
1 stop8h 29m
American Airlines
Wed 10/147:14 am
PWM
-
IDA
1 stop7h 06m
American Airlines
Deal found 2/2$494
This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/132:30 pm
IDA
-
PWM
2 stops17h 52m
United Airlines
Sat 4/187:33 pm
PWM
-
IDA
2 stops16h 20m
United Airlines
Deal found 2/2$542
This Delta deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:50 pm
IDA
-
PWM
2 stops27h 09m
Delta
Sat 10/176:30 am
PWM
-
IDA
2 stops17h 49m
Delta
Deal found 2/2$557
This American Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/291:44 pm
IDA
-
PWM
1 stop8h 29m
American Airlines
Tue 10/137:14 am
PWM
-
IDA
1 stop7h 06m
American Airlines
Deal found 2/2$558
This American Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/37:35 am
IDA
-
PWM
2 stops14h 38m
American Airlines
Wed 10/147:14 am
PWM
-
IDA
1 stop7h 06m
American Airlines
Deal found 2/2$563
This American Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/301:44 pm
IDA
-
PWM
2 stops20h 04m
American Airlines
Fri 10/167:14 am
PWM
-
IDA
1 stop7h 06m
American Airlines
Deal found 2/2$593
This American Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/301:44 pm
IDA
-
PWM
1 stop23h 22m
American Airlines
Tue 10/137:14 am
PWM
-
IDA
1 stop7h 06m
American Airlines
Deal found 2/2$604
This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/115:45 pm
IDA
-
PWM
2 stops25h 55m
United Airlines
Sat 4/187:33 pm
PWM
-
IDA
2 stops16h 20m
United Airlines
Deal found 2/2$607
This American Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/281:44 pm
IDA
-
PWM
2 stops20h 04m
American Airlines
Tue 10/137:14 am
PWM
-
IDA
1 stop7h 06m
American Airlines
Deal found 2/2$618

Find flight deals from Idaho Falls to Portland

Discover tips and strategies to find the most affordable flight options for your journey from Idaho Falls (IDA) to Portland (PWM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$542
(United Airlines)
Provider with most accurate pricing for Idaho Falls Fanning Field-Portland flight deals.
Search Deals
Provider most trusted by Cheapflights users for Idaho Falls Fanning Field-Portland flights.
Search Deals
From Idaho Falls Fanning Field to Portland
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho Falls to Portland 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, Cheapflights users made 2,558,603 searches. Data last updated February 4, 2026.
Use the filters below to find and compare flights from Idaho Falls to Portland that are best for you.

Fly from

Idaho Falls

Fly to

Portland

Route

Depart

Return

Price

Idaho FallsPortland

IDA - PWM

IDAPWM

Idaho Falls Fanning Field

Mon 4/13

2:30 pm-10:22 am

2 stops17h 52m

Portland

Sat 4/18

7:33 pm-9:53 am

2 stops16h 20m

$542

Idaho FallsPortland

IDA - PWM

IDAPWM

Idaho Falls Fanning Field

Mon 4/13

2:30 pm-10:22 am

2 stops17h 52m

Portland

Fri 4/17

6:13 pm-9:53 am

2 stops17h 40m

$542

Idaho FallsPortland

IDA - PWM

IDAPWM

Idaho Falls Fanning Field

Mon 4/13

2:30 pm-10:22 am

2 stops17h 52m

Portland

Sun 4/19

6:13 pm-9:53 am

2 stops17h 40m

$542

Idaho FallsPortland

IDA - PWM

IDAPWM

Idaho Falls Fanning Field

Tue 4/14

5:20 pm-9:40 pm

2 stops26h 20m

Portland

Sat 4/18

7:33 pm-9:53 am

2 stops16h 20m

$607

Idaho FallsPortland

IDA - PWM

IDAPWM

Idaho Falls Fanning Field

Tue 4/14

5:20 pm-9:40 pm

2 stops26h 20m

Portland

Fri 4/17

6:13 pm-9:53 am

2 stops17h 40m

$607

Idaho FallsPortland

IDA - PWM

IDAPWM

Idaho Falls Fanning Field

Tue 4/14

5:20 pm-9:40 pm

2 stops26h 20m

Portland

Sun 4/19

6:13 pm-9:53 am

2 stops17h 40m

$607

Idaho FallsPortland

IDA - PWM

IDAPWM

Idaho Falls Fanning Field

Sat 4/11

5:45 pm-9:40 pm

2 stops25h 55m

Portland

Sat 4/18

7:33 pm-9:53 am

2 stops16h 20m

$607

Idaho FallsPortland

IDA - PWM

IDAPWM

Idaho Falls Fanning Field

Sat 4/11

5:45 pm-9:40 pm

2 stops25h 55m

Portland

Sun 4/19

6:13 pm-9:53 am

2 stops17h 40m

$607

Idaho FallsPortland

IDA - PWM

IDAPWM

Idaho Falls Fanning Field

Sat 4/11

5:45 pm-9:40 pm

2 stops25h 55m

Portland

Thu 4/16

6:13 pm-9:53 am

2 stops17h 40m

$607

Idaho FallsPortland

IDA - PWM

IDAPWM

Idaho Falls Fanning Field

Sun 4/19

2:30 pm-9:40 pm

2 stops29h 10m

Portland

Sun 7/12

6:00 am-9:55 am

2 stops29h 55m

$737

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

Showing 1-10 of 12 results
1
2
  • Most accurate provider: When it comes to deals on Idaho Falls-Portland, Maine flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Idaho Falls-Portland, Maine flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Idaho Falls-Portland, Maine flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Idaho Falls-Portland, Maine flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Idaho Falls-Portland, Maine flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Idaho Falls to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Idaho Falls with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Idaho Falls to Portland

What is the cheapest month to book a flight from Idaho Falls to Portland, Maine?

Currently, September is the cheapest month in which you can book a flight from Idaho Falls to Portland, Maine (average of $290). Flying from Idaho Falls to Portland, Maine in July is currently the most expensive (average of $483). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Idaho Falls to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Idaho Falls to Portland, Maine?

    There are many flights that can get you from Idaho Falls to Portland, Maine in 17h 52m. Fly via United Airlines to get the fastest option. Idaho Falls and Portland, Maine are separated by a distance of 2066 mi.

  • Can I find deals for flights from Idaho Falls to Portland that include hotel bookings?

    Yes. In addition to deals on Idaho Falls to Portland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Idaho Falls to Portland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho Falls to Portland.

  • Can I find deals for business class flights from Idaho Falls to Portland?

    Yes. Cheapflights offers flight deals from Idaho Falls to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Idaho Falls to Portland, Maine?

    Currently, September is the cheapest month in which you can book a flight from Idaho Falls to Portland, Maine (average of $290). Flying from Idaho Falls to Portland, Maine in July is currently the most expensive (average of $483). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
North Conway
Brunswick
Auburn
Conway

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