IDA - PDX

$159 Find Cheap Flights from Idaho Falls to Portland

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Idaho Falls to Portland departing on 3/6. 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 Portland

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Idaho Falls to Portland, 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 Idaho Falls to Portland, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$257
Typical prices: $86-$162
Alaska Airlines
Wed 5/13Tue 5/19
IDA - PDX • Non-stop
Cheapest one-way
$69
Typical prices: $96-$120
Delta
Fri 3/6
IDA - PDX • 1 stop
Top airlines
Alaska Airlines
Cheapest • from $257 (round-trip)
Alaska Airlines
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 62% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
April
Cheapest • 64% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
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We hope you love your trip to Portland!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Idaho Falls to Portland 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 Idaho Falls to Portland

Wed, May 13 - Tue, May 19
Alaska Airlines Logo
4:08 pm - 4:50 pm
IDA
-
PDX
1h 42mnonstop
Alaska Airlines Logo
10:30 am - 1:06 pm
PDX
-
IDA
1h 36mnonstop
$257Alaska Airlines
Wed, May 13 - Sat, May 16
Alaska Airlines Logo
4:08 pm - 4:50 pm
IDA
-
PDX
1h 42mnonstop
Alaska Airlines Logo
5:46 pm - 10:45 pm
PDX
-
IDA
3h 59m
1 stop
$260Alaska Airlines
Tue, May 12 - Sun, May 17
Delta Logo
6:54 pm - 10:44 am
IDA
-
PDX
16h 50m
2 stops
Delta Logo
6:00 am - 10:47 am
PDX
-
IDA
3h 47m
1 stop
$270Delta
Tue, May 12 - Sat, May 16
Delta Logo
6:54 pm - 11:40 pm
IDA
-
PDX
5h 46m
1 stop
Delta Logo
6:00 am - 10:47 am
PDX
-
IDA
3h 47m
1 stop
$277Delta
Mon, Apr 6 - Mon, Apr 13
Alaska Airlines Logo
4:59 pm - 8:10 am
IDA
-
PDX
16h 11m
1 stop
Alaska Airlines Logo
9:00 am - 10:52 pm
PDX
-
IDA
12h 52m
1 stop
$283Alaska Airlines
Wed, May 13 - Fri, May 15
Alaska Airlines Logo
4:08 pm - 4:50 pm
IDA
-
PDX
1h 42mnonstop
Alaska Airlines Logo
9:30 pm - 10:45 pm
PDX
-
IDA
24h 15m
1 stop
$290Alaska Airlines
Wed, May 13 - Mon, May 18
Alaska Airlines Logo
4:08 pm - 4:50 pm
IDA
-
PDX
1h 42mnonstop
Alaska Airlines Logo
10:30 am - 1:06 pm
PDX
-
IDA
1h 36mnonstop
$297Alaska Airlines
Tue, May 12 - Wed, May 20
Alaska Airlines Logo
4:06 pm - 9:32 am
IDA
-
PDX
18h 26m
1 stop
Alaska Airlines Logo
10:30 am - 1:06 pm
PDX
-
IDA
1h 36mnonstop
$300Alaska Airlines
Tue, May 12 - Wed, May 20
Alaska Airlines Logo
4:06 pm - 9:32 am
IDA
-
PDX
18h 26m
1 stop
Alaska Airlines Logo
5:00 am - 3:31 pm
PDX
-
IDA
9h 31m
1 stop
$303Alaska Airlines
Mon, May 18 - Wed, May 20
Alaska Airlines Logo
4:08 pm - 4:50 pm
IDA
-
PDX
1h 42mnonstop
Alaska Airlines Logo
9:39 am - 3:31 pm
PDX
-
IDA
4h 52m
1 stop
$307Alaska Airlines
Booking Insights

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

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

How much is a round-trip flight from Idaho Falls to Portland?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Idaho Falls to Portland departing in May.

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

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

If your flying dates are flexible, you should consider flying to Portland on a Thursday, as we generally find the cheapest rates on that day for this route. On the other hand, Wednesday is the most expensive day to fly from Idaho Falls to Portland. For your return ticket, we recommend flying on a Friday and avoiding Wednesdays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Idaho Falls to Portland, 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 Idaho Falls to Portland is April, where tickets cost $88 (return) on average. On the other hand, the most expensive months are September and February, where the average cost of round-trip tickets is $418 and $388 respectively.

Can I save money by flying with a layover from Idaho Falls to Portland?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $318, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from Idaho Falls to Portland?

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

To get a below average price on the flight from Idaho Falls to Portland, you should book around 3 weeks before departure, which saves you about 62% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Good to know

Low seasonApril
Cheapest flight$69
Best time to beat the crowds with an average 64% drop in price.
Most popular time to fly with an average 11% increase in price.
Flight from Idaho Falls to Portland

When to book flights from Idaho Falls to Portland

Are your dates flexible? Find out the best times to travel from Idaho Falls to Portland 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 Idaho Falls to Portland

  • Which is the best way to get downtown Portland from Portland International Airport (PDX)?

    You can easily commute from Portland International Airport (PDX) to the city center of Portland via bus. Central Oregon Breeze bus runs regularly between these two points, covering the 12.4-mile distance in approximately 20 minutes. The service operates daily. However, if you want to get there in under 17min, consider taking a taxi.

  • Are there car rentals at PDX?

    Nothing beats the flexibility and convenience of exploring the city of Portland in a car. To this end, you won’t be surprised to find a wide range of hire agencies running their desks here, including Enterprise and Hertz. Their desks are located in the parking garage first level, opposite the luggage claim. Make early reservations to enjoy affordable rates.

  • Which family amenities are at Portland International Airport (PDX)?

    PDX features designated lactation rooms where moms with kids can escape to breastfeed and breast pump in privacy. These private suites are situated in the concourse Level, adjacent to gates 5 and 6, and contain comfortable chairs, power sockets, changing tables and sinks.

  • Are there smoking areas at Portland International Airport (PDX)?

    ​​​​​​​The airport policy forbids lighting a cigarette within the arrival halls and inside the terminal. Nevertheless, you may smoke in the spaces outside the arrival terminals. Ask the airport personnel for directions.

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

    In the last 3 days, the lowest price for a flight from Idaho Falls to Portland was $159 for a one-way ticket and $257 for a round-trip.

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

    A passport is not required to fly from Idaho Falls to Portland.

  • Which airports will I be using when flying from Idaho Falls to Portland?

    When flying out of Idaho Falls you will be using Idaho Falls Fanning Field. You will be landing at Portland, also known as Portland.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Idaho Falls to Portland are Alaska Airlines and Delta. With an average price for the route of $417 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 $461 and an overall rating of 7.9.

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

    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 Idaho Falls to Portland.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Portland from Idaho Falls 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 Idaho Falls to Portland?

    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 Portland with an airline and back to Idaho Falls with another airline. Booking your flights between Idaho Falls and PDX 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 Idaho Falls to Portland?

    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 Portland from Idaho Falls 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 Idaho Falls to Portland

  • Looking for a cheap flight? 25% of our users found flights on this route for $73 or less one-way and $287 or less round-trip.
  • Portland International Airport (PDX) is the hub for Alaska Airlines. The carrier uses Concourse B upon arrival. Still at the same concourse, close to the entrance is the Alaska Lounge. Any travelers can access this suite regardless of the airline you’re flying with, provided you pay for the day’s pass.Travelers using this amenity enjoy priority access as part of the fast lane program.
  • The departure and arrival ports have amenities which are wheelchair accessible, including toilets and bathrooms for limited mobility passengers. Furthermore, you’ll find friendly agents ready to aid your passage through the security and customs desk, and at the boarding gate. Remember to contact your airline in advance for any specialized services.
  • Several hotels are within easy reach of the Idaho Falls Fanning Field Airport, making it convenient if you have an early morning flight. Residence Inn by Marriott Idaho Falls and Best Western Driftwood Inn are two nearby hotels that provide courtesy shuttles to and from the airport. You’re thus sure of reaching your terminal in time for your departure.
  • Delta Airlines is one of the carriers that allow passengers to bring their pets into the cabin when flying from Idaho Falls to Portland. Usually, the furry friends permitted onboard include household animals such as cats and dogs. The airline will require you to produce their valid medical certificates, and lock your pets in their cages during the trip.
  • Portland International Airport (PDX) runs an art program for departing and arriving travelers to enjoy. As such, if you reach the terminal ahead of your departure, you can kill off time by exploring the various exhibits. They include the original works like mixed media, photography, and large-scale paintings.

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

 
See real verified KAYAK customer reviews for airlines flying from Idaho Falls to Portland. 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 Idaho Falls to Portland? 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 11849 reviews
7.0Entertainment
8.5Crew
8.1Boarding
7.1Food
7.8Comfort
Airline reviews

Flight attendants made this flight wonderful. They made sure everyone had what they needed and anticipated future needs. They made adjustments as needed. It was clear this was an experienced crew.

10.0 ExcellentJoseph, Jan 2026
DFW - PDX
Read more Alaska Airlines reviews

Flight attendants made this flight wonderful. They made sure everyone had what they needed and anticipated future needs. They made adjustments as needed. It was clear this was an experienced crew.

Very delayed for seemingly no reason. Made me miss an event

we bought Mediterranean boxes for lunch. The salami in mine had gone bad long ago, but my partner had good salami and could eat it. Could I buy assigned seats? I guess that I didn't spend enough, so sat at the back of the plane

the flight attendant was so great and the upgrade to first class was top notch

There was no food or entertainment, thus thus the neutral rating.

The Alaska Airlines app made it very difficult to find my boarding pass. It was very frustrating to use! The flight itself was flawless.

No communication with delayed and canceled flights. Completely in the dark for the whole experience.

You need categories to denote when food and entertainment are not available.

Alaska is generally the airline I fly nearly all the time. I nearly always have wonderful experiences on Alaska and never a complaint. However, this entire flight felt like we were in the cheap seats the entire time and I had even upgraded to a cushier seat. For an over six hour flight (that became 7 hours) there was no online entertainment. I couldn’t connect to Wi-Fi and we were offered one snack and one drink. We were instructed to go to a particular baggage claim and 30 minutes later our bag still hadn’t come out and it turned out it was the wrong carousel announced. So overall, this flight was a series of mishaps really less than mediocre service even though flight attendants were wonderful.

Alaska is a great airline. Unfortunately, our flight was canceled in a really late hour and it caused a lot of hardship in my travel process.

First class and monitors weren’t working for mine & my husbands. Eventually fixed, but quite annoyed as we bought first class. Also, No foot rests.

Prior to takeoff, the pilot told us there was a possibility of not being able to land and going to Portland. Well that happened, we took off and then did 8 loops around Spokane before the pilot told us we ran out of fuel and had to go to Portland. So for a 35 minute flight we have now been on the plane for 3 hours (boarded at 6:50 am and landed in Portland at 10:30). Then, we just sat in Portland's airport with no updates of when we can start heading back. All of a sudden, our pilots and crew just left, leaving us stranded in a different city and state. We continued to sit in Portland until we finally got a new crew assigned and boarded the plane (This was from 10:30-2). We then sat on the plane for an additional hour before take off because they had to count us multiple times. We finally landed in Spokane at 3:55 PM. So a flight that should have taken at max an hour took us 10 hours and we missed the majority of the recruiting event we went for.

It was delayed but other than that it was great.

Got on the plane and sat there for an hour before departure.

Second flight in a row where the entertainment system is broken. 5 hour long flight with no entertainment and flight attendants did not seem interested in resolving the matter. Very shocked to be treated this poorly considering I paid for a first class experience and have Diamond Medallion status.

They double booked seats, the gate staff changed my ticket as I was boarding she went over to the computer and changed it without telling me. She messed up an entire three row section for me and others. Other travelers were outraged but the gate staff were so rude, so condescending saying it wasn't their problem to solve. I would rate this a zero if I could. Will not fly Delta again I'll stick with United and American.

Comfort seating was on the tight side. Maybe it was a smaller plane(?)

I didn't take this flight. I changed the flight. Why am I getting surveys and notifications on flights that I change. Seems like a defect with Kayak.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Timing, quality of service, promptness and courtesy of the staff

I like that if they asked you to checked in a bag at the gate they give you priority to board

Horrible food and crew. Crew were laughing and talking loud while people were trying to sleep

Yall need to integrate your system with Alaska more efficiently. They booted me off the first flight because of a discrepancy on your end.

The crew at Hawaiian Airlines was fantastic. Kind and hard working. The pilots were great with giving us all the updates to make sure we were informed.

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.

Alaska was fine as usual. My frustration came with accessing boarding passes. On the first trip, I could only get one to print ans took a picture of the second one. On our return trip, the system was down? Friends who booked directly with Alaska had theirs process. I even tried the 800 number and had others try it too. It said something in Spanish and hung up. The agent at the airport succeeded.

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

There is not one likable thing about this airline. It’s starts with the deceptive pricing and continues through the whole flight. The worst staff I’ve ever experienced way over priced bags absolutely no food or drink (unacceptable and you should be embarrassed) the seats are cramped and uncomfortable there is no entertainment there is nothing about this trash airline that constitutes any amount of money. It’s worse than spirit and way more expensive it is disgraceful. Do not travel with Allegiant I repeat do not bother no matter what they say the price is it is never ever going to be the right choice I’m mind blown at how awful the entire experience was I’m embarrassed that I chose so poorly I cannot reiterate enough how beyond horrible this company and its staff are, not one person on this flight or at the airport is qualified to sweep up trash on a city sidewalk they should certainly never be given any job that requires a brain or manners or communication with human beings, what a disgrace to the human race. Your criminal chiselers and should be put out to pasture

Great flight. Friendly staff. Free snacks and drinks would be nice. I would love fewer taxes and fees added on.

My 90 year old father flew with me. He needed wheel chair assistance and is nearly deaf. The staff was amazing with him.

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.

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

Information on your arrival and departure airports