IDA - PDX

$119 Find Cheap Flights from Idaho Falls to Portland

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Idaho Falls to Portland departing on 5/25. 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 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
$113
Typical prices: $86-$238
Allegiant Air
Mon 5/25Fri 5/29
IDA - PDX • Non-stop
Cheapest one-way
$130
Typical prices: $84-$261
Delta
Mon 5/4
IDA - PDX • 1 stop
Top airlines
Cheapest • from $113 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with Alaska Airlines and Allegiant Air. Average duration is 0
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Cheapest • Avg $432 (round-trip)
Shortest trip • 4h 33m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 57% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 63% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
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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 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

Mon, May 25 - Fri, May 29
Allegiant Air Logo
6:39 pm - 7:20 pm
IDA
-
PDX
1h 41mnonstop
Allegiant Air Logo
3:10 pm - 5:49 pm
PDX
-
IDA
1h 39mnonstop
$113Allegiant Air
Mon, May 25 - Mon, Jun 1
Allegiant Air Logo
6:39 pm - 7:20 pm
IDA
-
PDX
1h 41mnonstop
Allegiant Air Logo
3:10 pm - 5:49 pm
PDX
-
IDA
1h 39mnonstop
$116Allegiant Air
Mon, Jun 15 - Fri, Jun 19
Allegiant Air Logo
6:39 pm - 7:18 pm
IDA
-
PDX
1h 39mnonstop
Allegiant Air Logo
3:09 pm - 5:49 pm
PDX
-
IDA
1h 40mnonstop
$119Allegiant Air
Fri, May 22 - Fri, May 29
Allegiant Air Logo
6:39 pm - 7:20 pm
IDA
-
PDX
1h 41mnonstop
Allegiant Air Logo
3:10 pm - 5:49 pm
PDX
-
IDA
1h 39mnonstop
$129Allegiant Air
Fri, May 22 - Mon, Jun 1
Allegiant Air Logo
6:39 pm - 7:20 pm
IDA
-
PDX
1h 41mnonstop
Allegiant Air Logo
3:10 pm - 5:49 pm
PDX
-
IDA
1h 39mnonstop
$132Allegiant Air
Mon, Jul 6 - Mon, Jul 13
Allegiant Air Logo
3:50 pm - 4:26 pm
IDA
-
PDX
1h 36mnonstop
Allegiant Air Logo
12:20 pm - 3:00 pm
PDX
-
IDA
1h 40mnonstop
$137Allegiant Air
Mon, Jul 6 - Mon, Jul 20
Allegiant Air Logo
3:50 pm - 4:26 pm
IDA
-
PDX
1h 36mnonstop
Allegiant Air Logo
12:20 pm - 3:00 pm
PDX
-
IDA
1h 40mnonstop
$142Allegiant Air
Mon, Jun 15 - Mon, Jun 22
Allegiant Air Logo
6:39 pm - 7:18 pm
IDA
-
PDX
1h 39mnonstop
Allegiant Air Logo
3:09 pm - 5:49 pm
PDX
-
IDA
1h 40mnonstop
$145Allegiant Air
Fri, May 22 - Mon, May 25
Allegiant Air Logo
6:39 pm - 7:20 pm
IDA
-
PDX
1h 41mnonstop
Allegiant Air Logo
3:10 pm - 5:49 pm
PDX
-
IDA
1h 39mnonstop
$147Allegiant Air
Fri, Jun 19 - Mon, Jun 22
Allegiant Air Logo
6:39 pm - 7:18 pm
IDA
-
PDX
1h 39mnonstop
Allegiant Air Logo
3:09 pm - 5:49 pm
PDX
-
IDA
1h 40mnonstop
$149Allegiant Air
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 Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Tuesday 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 $100 (return) on average. On the other hand, the most expensive months are January and February, where the average cost of round-trip tickets is $426 and $423 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 $297, 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 57% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low seasonMarch
Cheapest flight$113
Best time to beat the crowds but there is an average 47% increase in price.
Most popular time to fly with an average 1% 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 $130 for a one-way ticket and $113 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 $426 and an overall rating of 7.9, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $468 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 $160 or less one-way and $297 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.

Prefer to fly direct from Idaho Falls to Portland?

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

Direct departures

Idaho Falls Fanning Field to Portland

Monday

Alaska Airlines,Allegiant Air

Alaska Airlines,Allegiant Air

Tuesday

Alaska Airlines

Alaska Airlines

Wednesday

Alaska Airlines

Alaska Airlines

Thursday

Alaska Airlines

Alaska Airlines

Friday

Alaska Airlines,Allegiant Air

Alaska Airlines,Allegiant Air

Saturday

Alaska Airlines

Alaska Airlines

Sunday

Alaska Airlines

Alaska Airlines

See more direct flights

Direct returns

Portland to Idaho Falls Fanning Field

Monday

Alaska Airlines,Allegiant Air

Alaska Airlines,Allegiant Air

Tuesday

Alaska Airlines

Alaska Airlines

Wednesday

Alaska Airlines

Alaska Airlines

Thursday

Alaska Airlines

Alaska Airlines

Friday

Alaska Airlines,Allegiant Air

Alaska Airlines,Allegiant Air

Saturday

Alaska Airlines

Alaska Airlines

Sunday

Alaska Airlines

Alaska Airlines

See more direct flights

Reviews of the top 3 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.
7.9
Alaska AirlinesOverall score based on 12057 reviews
7.0Entertainment
7.8Comfort
7.0Food
8.5Crew
8.1Boarding
Airline reviews

My only complaint was how far it was from plane to baggage claim

10.0 ExcellentAnonymous, Mar 2026
SBP - PDX
Read more Alaska Airlines reviews

My only complaint was how far it was from plane to baggage claim

Cancelled the flight cuz they sent the WRONG plane and then they promised to rebook us and let us know within the hour what our next flight was. I have heard nothing after 12 hours and can’t get ahold of anyone.

nothing for delays and refuse service.when asked for the second flight. the first is good though

Not bad. Due to not buying a seat, on the way back, my seat was not assigned till 2 hrs before the flight left. Got me worried I wouldn’t have a seat.

It was not a good experience, the flight was delayed 3 hours, the gate staff were super pushy to get bags checked claiming it was a full flight, there were about a dozen open seats from what I could tell. The intercom from the pilot seemed to be broken, it sounded like the pilot was speaking with a mouth full of marbles.

There was an issue with the plane and it was late getting in. This caused me to miss my connecting flight from PDX to BOI. I had to ask if they would provide me with a food voucher and they did but didn’t seem to concerned about my delay.

The flight was delayed by 2 hours for “routine maintenance”and because of that I arrived much later iso my Uber ride home was $100 when it’s normally $50.

More or less, this seemed like a mismanaged group of great people who would crush at this job, if only they were given the resources to do so.

Plane destination at the Gates were mixed up at Spokane airport. Text from website didn't match rithet

It was fine. I upgraded to premium economy & lived the extra legroom. Unfortunately, I was seated next to a man who sniffled A LOT during the flight and had his earphones on so loud that I could hear the music sitting next to him!

Perhaps when you’re sitting in 1st class and the crew closes the bathroom for the pilots, there could be a notification other than holding your hands up as a blockade when you get there and you’re told the restrooms are closed please turn around … especially at night when visibility is poor and you’re met by a flight attendants with their arms up

First class is comfortable. Enjoyed a movie and was able to relax compared to coach.

Loved flying First Class. Very comfortable. The seat was amazing. Enjoyed a movie and was able to relax so much better than in coach.

We landed and sat on the tarmac for 45 minutes because they only have one gate at the airport and there was another plane running late so we had to wait

The WiFi was not working. That made for a long flight.

Absolutely no communication on why there's a delay and multiple flight time reschedules. I would have canceled the flight and drove back home if I known it was going to be rescheduled 3 or 4 times.

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

Stop changing gates. Stop cancelling flights Stop moving my seat.

Superb. Staff great. Great flight. As with other airlines, seating too tight and restrictive.

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.

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

Information on your arrival and departure airports