PDX - IDA

$63 Find Cheap Flights from Portland to Idaho Falls

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to Idaho Falls departing on 1/25. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Idaho Falls

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Idaho Falls, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Idaho Falls, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$210
Overall average: $306
Alaska Airlines
Fri 1/30Mon 2/2
PDX - IDA • 1 stop
Cheapest non-stop
$407
Typical prices: $83-$101
Alaska Airlines
Fri 5/29Wed 6/3
PDX - IDA • Non-stop
When to travel
June
Cheapest • 55% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Nonstop flights
2 days a week
There are direct flights from Portland to Idaho Falls 2 days a week: Mon, Fri.
Direct flights
Direct flights
Direct flights
Direct flights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Idaho Falls!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to Idaho Falls that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portland to Idaho Falls

Fri, Jan 30 - Mon, Feb 2
Alaska Airlines Logo
5:35 pm - 10:59 pm
PDX
-
IDA
4h 24m1 stop
Alaska Airlines Logo
6:58 pm - 12:09 am
IDA
-
PDX
6h 11m1 stop
$210Alaska Airlines
Thu, Jun 25 - Thu, Jul 2
Alaska Airlines Logo
10:46 am - 1:22 pm
PDX
-
IDA
1h 36mnonstop
Alaska Airlines Logo
4:17 pm - 4:53 pm
IDA
-
PDX
1h 36mnonstop
$257Alaska Airlines
Fri, Jan 30 - Mon, Feb 2
Alaska Airlines Logo
5:35 pm - 10:59 pm
PDX
-
IDA
4h 24m1 stop
Alaska Airlines Logo
6:58 pm - 4:50 pm
IDA
-
PDX
22h 52m2 stops
$267Alaska Airlines
Fri, Jan 30 - Sun, Feb 1
Alaska Airlines Logo
5:35 pm - 10:59 pm
PDX
-
IDA
4h 24m1 stop
Alaska Airlines Logo
9:00 am - 8:47 pm
IDA
-
PDX
12h 47m1 stop
$269Alaska Airlines
Fri, Jan 23 - Sun, Jan 25
Alaska Airlines Logo
1:38 pm - 6:18 pm
PDX
-
IDA
3h 40m1 stop
Alaska Airlines Logo
9:00 am - 12:38 pm
IDA
-
PDX
4h 38m1 stop
$281Alaska Airlines
Fri, Mar 6 - Sun, Mar 8
Alaska Airlines Logo
6:00 am - 11:36 pm
PDX
-
IDA
16h 36m1 stop
Alaska Airlines Logo
8:00 am - 8:49 am
IDA
-
PDX
25h 49m1 stop
$285Alaska Airlines
Sat, Jan 10 - Sat, Jan 17
Delta Logo
5:50 am - 12:34 pm
PDX
-
IDA
5h 44m1 stop
Delta Logo
1:15 pm - 4:05 pm
IDA
-
PDX
3h 50m1 stop
$288Delta
Fri, Jan 30 - Sun, Feb 1
Alaska Airlines Logo
5:35 pm - 10:59 pm
PDX
-
IDA
4h 24m1 stop
Alaska Airlines Logo
9:00 am - 4:38 pm
IDA
-
PDX
8h 38m2 stops
$303Alaska Airlines
Fri, May 29 - Wed, Jun 3
Alaska Airlines Logo
5:46 pm - 10:45 pm
PDX
-
IDA
3h 59m1 stop
Alaska Airlines Logo
4:08 pm - 4:50 pm
IDA
-
PDX
1h 42mnonstop
$307Alaska Airlines
Fri, Mar 6 - Mon, Mar 9
Alaska Airlines Logo
3:52 pm - 11:36 pm
PDX
-
IDA
6h 44m1 stop
Alaska Airlines Logo
5:20 pm - 10:41 pm
IDA
-
PDX
6h 21m1 stop
$314Alaska Airlines
Booking Insights

KAYAK's insights & trends for Portland to Idaho Falls flights

Get data-powered insights and trends into flights from Portland to Idaho Falls to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Portland to Idaho Falls?

The average price of all round-trip flights from Portland to Idaho Falls clicked on KAYAK for each day over the last 12 months.

For Portland to Idaho Falls, Saturday is the cheapest day to fly on average and Wednesday is the most expensive. Flying from Idaho Falls back to Portland, the best deals are generally found on Monday, with Wednesday being the most expensive.

What is the cheapest month to fly from Portland to Idaho Falls?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to Idaho Falls, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Portland to Idaho Falls is June, where tickets cost $101 (return) on average. On the other hand, the most expensive months are September and August, where the average cost of round-trip tickets is $463 and $364 respectively.

Good to know

Low seasonOctober
Cheapest flight$123
Best time to beat the crowds but there is an average 58% increase in price.
Most popular time to fly and prices are also 39% lower on average.
Flight from Portland to Idaho Falls

When to book flights from Portland to Idaho Falls

Are your dates flexible? Find out the best times to travel from Portland to Idaho Falls based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Portland to Idaho Falls

  • Will I be able to find any hotels with a location close to the Idaho Falls Regional Airport (IDA)?

    One option that sits just to the south of the entrance to the airport at the junction of Interstate 15 and Highway 20 is the Best Western Plus Cottontree Inn.

  • What types of rental car choices are available to me at the Idaho Falls Regional Airport, and where will I find a rental car company after my flight?

    There are roughly six different major rental car companies that operate at this airport, and all of them sit on the arrival side of the airport as you make your way to the baggage claim area. Once you have picked up your contract and your keys, you will find that all rental cars have a location in the parking lot adjacent to the terminal, right outside the exit of the baggage claim.

  • What are some transportation choices to get me from the Idaho Falls Regional Airport to the center of Idaho Falls after your flight?

    One option that utilizes public transportation is to travel on the Salt Lake Express buses that make the trip from the airport to the downtown area in around 5min. If you would instead like to take a taxi on this route, you should expect a travel time of about 9min.

  • If someone will be dropping me off at the Portland International Airport before a flight, where's the best place for them to drop me off?

    Drivers looking to drop off passengers can use one of the dedicated drop-off areas in front of the terminal building on both the upper and lower-level roadways. It is important to remember that only active unloading of passengers can occur in this location, and drivers cannot leave their vehicles unattended for any amount of time.

  • What is the cheapest flight from Portland to Idaho Falls?

    In the last 3 days, the lowest price for a flight from Portland to Idaho Falls was $123 for a one-way ticket and $210 for a round-trip.

  • Do I need a passport to fly between Portland and Idaho Falls?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which aircraft models fly most regularly from Portland to Idaho Falls?

    The Airbus A320-100/200 is the aircraft model that flies most regularly on the Portland to Idaho Falls flight route.

  • Which airline alliances offer flights from Portland to Idaho Falls?

    oneworld, and SkyTeam are the airline alliances operating flights between Portland and Idaho Falls, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Portland to Idaho Falls?

    You can catch a nonstop flight from Portland to Idaho Falls on on Monday.

  • Which is the best airline for flights from Portland to Idaho Falls, Alaska Airlines or Delta?

    The two airlines most popular with KAYAK users for flights from Portland to Idaho Falls are Alaska Airlines and Delta. With an average price for the route of $403 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $389 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Portland to Idaho Falls?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portland to Idaho Falls.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portland to Idaho Falls?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Idaho Falls from Portland is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Portland to Idaho Falls?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Idaho Falls with an airline and back to Portland with another airline. Booking your flights between Portland and IDA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to Idaho Falls?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Idaho Falls from Portland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Portland to Idaho Falls

  • Looking for a cheap flight? 25% of our users found flights on this route for $73 or less one-way and $131 or less round-trip.
  • One of the best ways for travelers to get from the downtown Portland area to the Portland International Airport (PDX) without having to drive in your own car is to take the Portland TriMet MAX Red Line that travels from the Old Town Station in downtown Portland to the airport in around 33 minutes.
  • If you want to drive your own car to the Portland International Airport, this airport offers the convenience of its valet parking system, where you can drop off your car right adjacent to the ticket counter. For an even faster service, passengers can check in on the airport website to notify staff of their arrival time at the airport.
  • If you want to find a way to pass some time at the Portland International Airport before a flight, The Art Program at Portland International Airport has a program that rotates works of art in nine different exhibits scattered throughout the terminal buildings.
  • For those passengers that may have difficulty hearing when traveling through the Portland International Airport, this airport features a visual paging system that shows all audio messages on flight information displayed scattered throughout the terminal buildings.
  • If you are making a plan to take a pet or a service animal with you on your trip through the Portland International Airport, this airport features an outdoor pet relief area as well as two indoor relief areas. The outdoor area is just outside of the baggage claim level in the southern part of the terminal building, and the two indoor areas sit near the Alaska Lounge in Concourse C and near Gate D5.

Prefer to fly direct from Portland to Idaho Falls?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Portland to Idaho Falls Fanning Field.
Find which airlines fly direct from Portland Airport to Idaho Falls Fanning Field Airport, which days they fly and book direct flights.

Direct departures

Portland to Idaho Falls Fanning Field

Monday

Allegiant Air

Allegiant Air

Friday

Allegiant Air

Allegiant Air

See more direct flights

Direct returns

Idaho Falls Fanning Field to Portland

Monday

Allegiant Air

Allegiant Air

Friday

Allegiant Air

Allegiant Air

See more direct flights

Reviews of the top 4 airlines serving from Portland to Idaho Falls

 
See real verified KAYAK customer reviews for airlines flying from Portland to Idaho Falls. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Portland to Idaho Falls? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 11549 reviews
7.0Entertainment
8.1Boarding
7.8Comfort
8.5Crew
7.1Food
Airline reviews

Everything was great except for one piece of our luggage was severely damaged and crushed. There were no agents available at baggage claim and the hold time on the phone was over 3 hours. So therefore we were unable to file a complaint. We will be speaking to Alaska Airlines about replacing our luggage when we check in for our return flight.

8.0 ExcellentDanielle C, Dec 2025
PDX - SLC
Read more Alaska Airlines reviews

Everything was great except for one piece of our luggage was severely damaged and crushed. There were no agents available at baggage claim and the hold time on the phone was over 3 hours. So therefore we were unable to file a complaint. We will be speaking to Alaska Airlines about replacing our luggage when we check in for our return flight.

Great airline. Sat next to a really big person tho

I always choose Alaska when I can. Every thing seems to run more efficiently with them.

I liked that I made it onto the flight rather than “missing” the connection. We left PDX early in the morning along with half of Portland arriving at about the same time as we did- 2 hours prior to our flight leaving. The layover was for less than an hour and we were concerned that we would not make the connection, but as it turns out, the flight leaving LAX was even more delayed in departure due to needing some maintenance repair for the a/c of the plane. As for the food- it seems not so very nice that you are not feeding people and offering complementary alcohol on the international flights any more.

Flight was delayed but still made it to Phoenix on time. Boarding went quickly, the flight was smooth.

The food selections were not good, and entertainment was non existent.

I would have liked if the flight existed. To be fair the federal government canceled it. But, since it WAS canceled, I would have liked it if Alaska Airlines had moved a finger to assist me rather then abandoning me with my luggage, unable to check it, for 14 hours in Portland. So federal regulations forbid them from storing my bag? Then at least help me find storage or SOMETHING.

It was all good, no delays which was a worry. All great

It was a pleasant experience. Considering we paid over $3000 for first class there really wasn’t anything special about first class. All the seats looked the same and everyone got the same great customer service. The only thing that was different between first class and couch was the drinks and the meal. We wouldn’t waste that much $ on first class on that plane again.

This was more with the third party booking through Kayak but my KTN for Pre-TSA, even though I entered it, wasn't assigned to my ticket when I got to the airport. I had to go through regular security. Also the Alaska app had trouble loading my ticket in the first place and I had to ask for it to be printed. Alaska Airlines was great but wanted you to know about this hiccup in the ticketing interface.

Did not realize internet screen was hidden between seats and no info printed!!!!

2 of the seats in row 31 the entertainment system was not working, and one seat the tray table did not go all the way down. Flight arrived early and departed on time which was great.

Very good flight crew and very nice people staff were incredible especially the gate agent

Waited at the usual crowded gate at DCA where one ends up standing up because there aren't enough seats.

The flight was delayed for about 2 hrs. Other than it, it was good.

Advertised fruit trays with cheese, but only snacks handed out!

The plant way delayed departing by 3 hours. It was an old airplane with broken seats and armrests. The bathroom made a hollering sound. A really crappy flight experience and travel day all around.

Flight delays both to Detroits and return flight . The flight to Detroit was associated with mechanical difficulty

I am extremely disappointed that delta internal pilot manuals now refer to the Gulf of Mexico as the “gulf of America”. You can bow down to the Orange turd on your own. I will never fly delta again

Wasn't a Delta issue I don't think, but seems there was a Delta flight at each of the 2 Dallas airports at the same exact time, both to Atlanta. I was evidently booked on the one at Love Airport, but the Carey transport shuttle took me to DFW instead and I ended up missing the flight by just a few minutes. Was able to book a Southwest flight from Love Airport, but was a big loss of time and an inconvenience.

Very good. Nice plane and we sat in economy plus - bigger seats, more room. They served a meal and snacks, and the meal was an apple stuffed pancake that was very good! The snack for us was a hummus sandwich - also very good. The flight attendants were helpful and nice. They have plenty of movies and shows to watch. My only negative -- they changed our flights around and did not adjust the layovers, so we ended up with a very long and unnecessary layover in Honolulu.

I liked the Starlink WiFi but didn't like how they said they were the only airline to offer a free meal and it turns out to be just a standalone sandwich and then charge for snacks to go with it. Rather have the free snacks like Southwest, but have the option to purchase a decent meal for a 5+ hour flight.

Flight scheduled to take off at 5.55pm but it did not take off until 7pm due to some food delivery delay.

Unfortunately, I was put into the middle seat in the first row of premium seating. Sounds nice right? No! that is the worst seat in the plane. I wish I was in economy rather than be in that seat! There is no seat back pocket, no tray table, no charger. Nothing! so unless you're row mates are willing to let you share their basic amenities any flyer should have, you are stuck. It was the worst experience ever! And the flight attendant forgot to take my drink order. I felt like the forgotten flyer.

Delayed and cancelled flights were hard and very stressful, both ways!

The crew was quite good, they came by often with drinks or to collect trash. But what wasn't nice was the flight was over weigh and several people had to be rebooked. I was questioned whether I should have a seat when I was getting to it. The in-flight entertainment kept buffering and interrupting. And the route took the airplane through high winds which caused us a longer flight

Wasn’t on the flight due to Alaska cancellation…also after all the rerouting, I was going to be on a later flight that left SFO at 7:47pm, which meant an almost 6 hour layover. That same Hawaiian flight was delayed for another 2hours.

I had to cancel the flight because with a 3 hour delay for 'unexpected maintenance' in getting to LAX, I couldn't connect to an overseas flight that I had booked on Scandinavian Air.

The flight was CANCELED!!! Can’t get much more “poor” than that. I had to switch to American Airlines, add another layover and got home in Honolulu 4 hours later than I was supposed to be home. One bright spot was Josh with Alaska Airlines at SFO. He got me on a United Flight that got me home a few hours before I would have. Without him I would have gotten home almost 7 hours after my originally scheduled flight.

Canceled my flight within 24 hours, causing me arriving home midnight. Will never book Hawaiian airlines anymore

It was fine. Nobody was outstandingly friendly but no one was rude and everything was smooth . The captain thanked us for flying but no one greeted me as I walked on the plane or as I exited which is the least they could do lol

Clean, friendly, roomy. But check-in from the phone link was terrible. Repeated attempts wouldn’t save at the final step. Just kept spinning! It was very frustrating. Finally, I used the app (vs website link) to check-in which worked very smoothly on the first attempt.

Check in on the web portal was cumbersome! After several attempts I finally got the boarding pass.

Excellent flight and even arrived 23 min early. No entertainment , or wi fi on board, but I downloaded a couple of movies beforehand which kept me entertained. Really like flying Allegiant airlines.

WE were delayed about an hour and never any communications from the employees working the gate. We also were moved to a total of three gates.

I love how they show love to their customers and care about them too.

I liked how when I got on board how fast we ended up taking off but what I truly disliked was how uncomfortable the seats were. There was truly never a time that I could ever get comfortable during both of my flights. The seats could get away during shorter flights but flights 3 hour plus makes it hard to enjoy.

The crew was great and the flight was very smooth. Can’t really judge food since I did not get any because it costs money. The seat was comfortable for what we bought. Thanks!

Crew was great. No entertainment and food and beverage was for purchase only, even water

It was canceled. The flight wasn’t rescheduled, everyone had to figure out their own new arrangements. They said we would get refunded our original fare and receive an additional $150. We received links for $100 only and they expired before we could activate them.

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

Information on your arrival and departure airports