$499+ 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 1/26. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — PWM
Sep 22 — Sep 291
Round-trip
1 adult, Economy
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Find cheap flights from Idaho Falls to Portland with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Idaho Falls to Portland
Cheapest
Best
Last-minute
Cheapest flights from Idaho Falls to PortlandExplore 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 23, 2026.
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 23, 2026.
This American Airlines deal was found by Cheapflights users on 8/21. 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.
Thu 10/291:50 pm -
1 stop7h 50m
Sun 11/16:00 am -
2 stops17h 43m
Deal found 8/21![American Airlines logo]()
$671
This United Airlines deal was found by Cheapflights users on 8/21. 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.
Thu 10/297:00 am -
1 stop7h 02m
Sun 11/13:23 pm -
1 stop7h 46m
Deal found 8/21![United Airlines logo]()
$930
This United Airlines deal was found by Cheapflights users on 8/20. 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.
Fri 9/47:00 am -
2 stops12h 23m
Tue 9/86:00 am -
2 stops13h 16m
Deal found 8/20![United Airlines logo]()
$2,585
Best flights from Idaho Falls to PortlandDiscover carefully curated flight deals from Idaho Falls to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 23, 2026.
Discover carefully curated flight deals from Idaho Falls to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 23, 2026.
This United Airlines deal was found by Cheapflights users on 8/22. 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 1/2610:45 am -
2 stops10h 12m
Sat 1/309:45 am -
2 stops13h 23m
Deal found 8/22![United Airlines logo]()
$499
This American Airlines deal was found by Cheapflights users on 8/21. 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.
Thu 10/291:50 pm -
1 stop7h 50m
Sun 11/16:00 am -
2 stops17h 43m
Deal found 8/21![American Airlines logo]()
$671
This United Airlines deal was found by Cheapflights users on 8/21. 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.
Thu 10/297:00 am -
1 stop7h 02m
Sun 11/13:23 pm -
1 stop7h 46m
Deal found 8/21![United Airlines logo]()
$930
Last-minute flights from Idaho Falls to PortlandDiscover last-minute flight deals from Idaho Falls to Portland. Data last updated August 23, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho Falls to Portland. Data last updated August 23, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 8/20. 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.
Fri 9/47:00 am -
2 stops12h 23m
Tue 9/86:00 am -
2 stops13h 16m
Deal found 8/20![United Airlines logo]()
$2,585
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 August 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $489 (United Airlines) |
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 7,457,451 searches. Data last updated August 23, 2026.
Use the filters below to find and compare flights from Idaho Falls to Portland that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Idaho FallsPortland
IDA Idaho Falls Fanning Field - PWM Portland
IDAPWM
Idaho Falls Fanning Field
Tue 1/26
10:45 am-10:57 pm
2 stops10h 12m
Portland
Sat 1/30
9:45 am-9:08 pm
2 stops13h 23m
$499
Idaho FallsPortland
IDA Idaho Falls Fanning Field - PWM Portland
IDAPWM
Idaho Falls Fanning Field
Thu 10/29
1:50 pm-11:40 pm
1 stop7h 50m
Portland
Sun 11/1
6:00 am-9:43 pm
2 stops17h 43m
$671
Quickest round-trip
Idaho FallsPortland
IDA Idaho Falls Fanning Field - PWM Portland
IDAPWM
Idaho Falls Fanning Field
Thu 10/29
7:00 am-4:02 pm
1 stop7h 02m
Portland
Sun 11/1
3:23 pm-9:09 pm
1 stop7h 46m
$930
Sorted by cheapest first
- 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.
IDA-PWM
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.
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.
Traveling to a place near Portland?
Book flights to Portland if you plan to visit one of these locationsNorth Conway
Lewiston
Brunswick
Conway
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