$149 Cheap Flights from Idaho Falls (IDA) to Portland (PDX)

View $149 flight on Tue, Sep 16, 2025Opens in a new window

Popular airlines from Idaho Falls Regional Airport (IDA) to Portland International Airport (PDX)

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Cheap Flights from Idaho Falls to Portland (IDA-PDX)

Prices were available within the past 7 days and start at $149 for one-way flights and $270 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Sat, Sep 6 - Tue, Sep 23
IDA
Idaho Falls
PDX
Portland
$270 Roundtrip, found 6 days ago
$270
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Sat, Sep 6 from Idaho Falls to Portland, returning Tue, Sep 23, priced at $270 found 6 days ago
Hawaiian Airlines
Tue, Aug 26 - Tue, Sep 9
IDA
Idaho Falls
PDX
Portland
$272 Roundtrip, found 3 days ago
$272
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Tue, Aug 26 from Idaho Falls to Portland, returning Tue, Sep 9, priced at $272 found 3 days ago
Delta
Wed, Aug 27 - Sat, Sep 6
IDA
Idaho Falls
PDX
Portland
$275 Roundtrip, found 3 days ago
$275
Roundtrip
found 3 days ago
Select Delta flight, departing Wed, Aug 27 from Idaho Falls to Portland, returning Sat, Sep 6, priced at $275 found 3 days ago
Alaska Airlines
Tue, Sep 16 - Tue, Sep 23
IDA
Idaho Falls
PDX
Portland
$282 Roundtrip, found 1 hour ago
$282
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Tue, Sep 16 from Idaho Falls to Portland, returning Tue, Sep 23, priced at $282 found 1 hour ago
Delta
Sat, Aug 23 - Sat, Sep 6
IDA
Idaho Falls
PDX
Portland
$285 Roundtrip, found 3 days ago
$285
Roundtrip
found 3 days ago
Select Delta flight, departing Sat, Aug 23 from Idaho Falls to Portland, returning Sat, Sep 6, priced at $285 found 3 days ago
Hawaiian Airlines
Wed, Sep 10 - Sat, Sep 20
IDA
Idaho Falls
PDX
Portland
$290 Roundtrip, found 3 hours ago
$290
Roundtrip
found 3 hours ago
Select Hawaiian Airlines flight, departing Wed, Sep 10 from Idaho Falls to Portland, returning Sat, Sep 20, priced at $290 found 3 hours ago
Alaska Airlines
Wed, Aug 20 - Tue, Aug 26
IDA
Idaho Falls
PDX
Portland
$292 Roundtrip, found 3 hours ago
$292
Roundtrip
found 3 hours ago
Select Alaska Airlines flight, departing Wed, Aug 20 from Idaho Falls to Portland, returning Tue, Aug 26, priced at $292 found 3 hours ago
Hawaiian Airlines
Tue, Aug 26 - Wed, Sep 10
IDA
Idaho Falls
PDX
Portland
$293 Roundtrip, found 3 days ago
$293
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Tue, Aug 26 from Idaho Falls to Portland, returning Wed, Sep 10, priced at $293 found 3 days ago
American Airlines
Wed, Jan 14 - Fri, Jan 23
IDA
Idaho Falls
PDX
Portland
$442 Roundtrip, found 5 days ago
$442
Roundtrip
found 5 days ago
Select American Airlines flight, departing Wed, Jan 14 from Idaho Falls to Portland, returning Fri, Jan 23, priced at $442 found 5 days ago
United
Sat, Nov 1 - Sat, Nov 8
IDA
Idaho Falls
PDX
Portland
$465 Roundtrip, found 3 days ago
$465
Roundtrip
found 3 days ago
Select United flight, departing Sat, Nov 1 from Idaho Falls to Portland, returning Sat, Nov 8, priced at $465 found 3 days ago

Find the cheapest month to fly from Idaho Falls (IDA) to Portland (PDX)

January is typically the cheapest month to fly

From $211 - $574 per traveler.

Graph displaying average flight prices per month

Alternative airports near Portland

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Portland Intl. PDX. Cheapest and Closest option available. Average driving time to city center is 17 minutes. Flights from $413
PDX
Portland Intl.
CheapestClosest
Average driving time to city center17 min
Flights from $413
Flights from Idaho Falls (IDA) to Portland (PDX)
Origin airport
Idaho Falls Regional
Destination airport
Portland Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
$270
Distance
536 mi
Average flight time
1 hour 37 mins

Idaho Falls to Portland Flights

The cheapest times to fly from Idaho Falls to Portland

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Idaho Falls to Portland are during the month of September. You can find some of the cheapest flights from Idaho Falls to Portland with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Idaho Falls to Portland

Sunday is one of the best days to book for cheap flights from Idaho Falls to Portland: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Idaho Falls to Portland

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Idaho Falls to Portland in 2025. You can also book with separate airlines for your outbound and return journeys, from $149 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Idaho Falls to Portland flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Idaho Falls to Portland airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Idaho Falls Regional Airport (IDA) to Portland Intl. Airport (PDX) cost?
Discover the latest flight deals from IDA to PDX by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from IDA to PDX?
The cheapest flights from IDA to PDX are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from IDA to PDX?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from IDA to PDX. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Idaho Falls Regional Airport (IDA) to Portland Intl. Airport (PDX)?
On average, you can take your pick of 2 nonstop flights departing from Idaho Falls Regional Airport (IDA) to Portland Intl. Airport (PDX) each week. If you don't find one that works for your schedule, consider a flight that has a layover. Filter your search results on Expedia to include one or two stops and opt for the next best option.
What are the most popular departure times for flights from Idaho Falls Regional Airport (IDA) to Portland Intl. Airport (PDX)?
Flights between IDA and PDX are their busiest at 2 PM. For a quieter experience and potentially cheaper fares, choose a time outside the usual busy windows.
What day of the week has the most flights from IDA to PDX?
If you fly on a Friday, you'll get the widest range of options for flights from Idaho Falls Regional Airport (IDA) to Portland Intl. Airport (PDX).
What is the earliest flight from Idaho Falls Regional Airport (IDA) to Portland Intl. Airport (PDX)?
The earliest flight out of Idaho Falls Regional Airport (IDA) is at around 2:46PM UTC-7. Board this plane and you'll arrive at Portland Intl. Airport (PDX) at approximately 3:40PM UTC-8. The total travel time is 1h 54m.
How long does it take to fly from Idaho Falls Regional Airport (IDA) to Portland Intl. Airport (PDX)?
It usually takes 1 hour and 54 minutes to travel the 540 mi from IDA to PDX.
What is the best time to fly from Idaho Falls Regional Airport (IDA) to Portland Intl. Airport (PDX)?
Select a flight from Idaho Falls Regional Airport (IDA) to Portland Intl. Airport (PDX) that leaves before 3 PM to reduce the risk of delays and cancellations. Departures later than this are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Portland from Idaho Falls Regional Airport (IDA)?
Portland Intl. Airport (PDX) is the only airport in Portland with direct flights from Idaho Falls Regional Airport (IDA). Consider the options and discover affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Idaho Falls Regional Airport (IDA) to Portland Intl. Airport (PDX) last-minute?
Waiting until just before your trip to book a flight from IDA to PDX often results in higher prices. While it's possible to find some last-minute deals, there's no guarantee. Keep your travel schedule open to boost your chances of snagging a bargain.
Is it cheaper to book an IDA to PDX flight and hotel package?
Opting for an IDA to PDX flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Choose from our wide range of stays and then add activities, car rentals and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Idaho Falls Regional Airport (IDA) to Portland Intl. Airport (PDX)?
If you booked your IDA to PDX flight within the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of fare you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more details.

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Idaho Falls nearby Airports

Pocatello

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$324.73
*Available to One Key members.