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$349+ 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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — PWM
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap 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 August 14, 2025.

Round-trip from

$349
(United Airlines)
From Idaho Falls Fanning Field to Portland
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Find 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 August 14, 2025.

This United Airlines deal was found by Cheapflights users on 8/13. 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.
Tue 9/95:00 amIDA - PWM
2 stops11h 26mUnited Airlines
Tue 9/237:30 amPWM - IDA
2 stops9h 41mUnited Airlines
Deal found 8/13$349
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Tue 9/910:56 amIDA - PWM
2 stops10h 07mUnited Airlines
Wed 9/247:30 amPWM - IDA
2 stops11h 45mUnited Airlines
Deal found 8/14$379
This American Airlines deal was found by Cheapflights users on 8/14. 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 9/912:54 pmIDA - PWM
2 stops20h 50mAmerican Airlines
Tue 9/236:01 amPWM - IDA
1 stop8h 23mAmerican Airlines
Deal found 8/14$439
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Wed 9/105:00 amIDA - PWM
2 stops12h 29mUnited Airlines
Wed 9/247:30 amPWM - IDA
2 stops11h 45mUnited Airlines
Deal found 8/14$476
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Tue 9/165:00 amIDA - PWM
2 stops11h 26mUnited Airlines
Tue 9/306:14 amPWM - IDA
2 stops9h 19mUnited Airlines
Deal found 8/14$527
This American Airlines deal was found by Cheapflights users on 8/14. 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 9/912:54 pmIDA - PWM
1 stop20h 55mAmerican Airlines
Wed 9/246:15 amPWM - IDA
1 stop8h 09mAmerican Airlines
Deal found 8/14$560
This American Airlines deal was found by Cheapflights users on 8/14. 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 9/1612:54 pmIDA - PWM
2 stops21h 37mAmerican Airlines
Tue 9/306:01 amPWM - IDA
1 stop8h 23mAmerican Airlines
Deal found 8/14$586

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 August 14, 2025.
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

Tue 9/9

5:00 am-6:26 pm

2 stops11h 26m

Portland

Tue 9/23

7:30 am-3:11 pm

2 stops9h 41m

$349

Idaho FallsPortland

IDA - PWM

IDAPWM

Idaho Falls Fanning Field

Tue 9/9

10:56 am-11:03 pm

2 stops10h 07m

Portland

Wed 9/24

7:30 am-5:15 pm

2 stops11h 45m

$379

Idaho FallsPortland

IDA - PWM

IDAPWM

Idaho Falls Fanning Field

Tue 9/9

12:54 pm-11:44 am

2 stops20h 50m

Portland

Tue 9/23

6:01 am-12:24 pm

1 stop8h 23m

$439

Idaho FallsPortland

IDA - PWM

IDAPWM

Idaho Falls Fanning Field

Wed 9/10

5:00 am-3:52 pm

1 stop8h 52m

Portland

Wed 9/24

7:30 am-5:15 pm

2 stops11h 45m

$445

Idaho FallsPortland

IDA - PWM

IDAPWM

Idaho Falls Fanning Field

Tue 9/16

5:00 am-6:26 pm

2 stops11h 26m

Portland

Tue 9/30

6:14 am-1:33 pm

2 stops9h 19m

$527

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

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, January is the cheapest month in which you can book a flight from Idaho Falls to Portland, Maine (average of $296). Flying from Idaho Falls to Portland, Maine in July is currently the most expensive (average of $394). 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.

  • 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, January is the cheapest month in which you can book a flight from Idaho Falls to Portland, Maine (average of $296). Flying from Idaho Falls to Portland, Maine in July is currently the most expensive (average of $394). 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
Brunswick
North Conway
Auburn
Conway
Lewiston

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