$43 Find Cheap Flights from Portland to Idaho

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 departing on 7/13. 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

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

Cheap Flights from Portland to Idaho

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Boise
Boisenonstop$177
Idaho Falls
Idaho Fallsnonstop$81
Hailey
Hailey1 stop$429
Lewiston
Lewiston1 stop$356
Twin Falls
Twin Falls1 stop$356
Pocatello
Pocatello1 stop$427
Spokane
Spokanenonstop$197
Boise
Boisenonstop$177
Idaho Falls
Idaho Fallsnonstop$81
Hailey
Hailey1 stop$429
Lewiston
Lewiston1 stop$356
Twin Falls
Twin Falls1 stop$356
Pocatello
Pocatello1 stop$427
Spokane
Spokanenonstop$197

Book Cheap Portland to Idaho Plane Tickets

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

Fri, Jul 10 - Fri, Jul 17
Allegiant Air Logo
12:20 pm - 3:00 pm
PDX
-
IDA
1h 40mnonstop
Allegiant Air Logo
3:50 pm - 4:26 pm
IDA
-
PDX
1h 36mnonstop
$81Allegiant Air
Fri, Jul 10 - Fri, Jul 17
Allegiant Air Logo
12:20 pm - 3:00 pm
PDX
-
IDA
1h 40mnonstop
Allegiant Air Logo
3:50 pm - 4:26 pm
IDA
-
PDX
1h 36mnonstop
$85Allegiant Air
Wed, May 27 - Wed, Jun 3
Alaska Airlines Logo
10:30 am - 1:17 pm
PDX
-
IDA
1h 47mnonstop
Alaska Airlines Logo
4:03 pm - 4:50 pm
IDA
-
PDX
1h 47mnonstop
$157Alaska Airlines
Sat, May 16 - Wed, May 20
Alaska Airlines Logo
9:35 pm - 11:58 pm
PDX
-
BOI
1h 23mnonstop
Alaska Airlines Logo
9:00 am - 9:23 am
BOI
-
PDX
1h 23mnonstop
$177Alaska Airlines
Fri, May 29 - Mon, Jun 1
Multiple Airlines Logo
5:50 pm - 10:53 pm
PDX
-
IDA
4h 03m
1 stop
Multiple Airlines Logo
6:39 pm - 7:20 pm
IDA
-
PDX
1h 41mnonstop
$178Multiple Airlines
Sat, May 23 - Sat, May 30
United Airlines Logo
8:35 am - 4:44 pm
PDX
-
BOI
7h 09m
1 stop
United Airlines Logo
7:05 pm - 11:03 pm
BOI
-
PDX
4h 58m
1 stop
$187United Airlines
Sat, May 30 - Mon, Jun 1
Delta Logo
5:01 pm - 11:04 pm
PDX
-
BOI
5h 03m
1 stop
Delta Logo
6:00 pm - 9:16 pm
BOI
-
PDX
4h 16m
1 stop
$197Delta
Sat, May 23 - Wed, May 27
Delta Logo
12:20 pm - 4:57 pm
PDX
-
GEG
4h 37m
1 stop
Delta Logo
6:10 am - 11:39 am
GEG
-
PDX
5h 29m
1 stop
$207Delta
Tue, May 26 - Thu, May 28
United Airlines Logo
5:00 am - 12:46 pm
PDX
-
JAC
6h 46m
1 stop
United Airlines Logo
4:23 pm - 11:00 pm
JAC
-
PDX
7h 37m
1 stop
$397United Airlines
Thu, May 14 - Mon, May 18
Multiple Airlines Logo
12:35 pm - 12:00 pm
PDX
-
TWF
22h 25m
2 stops
Multiple Airlines Logo
1:45 pm - 7:51 pm
TWF
-
PDX
7h 06m
1 stop
$443Multiple Airlines
Booking Insights

KAYAK's insights & trends for Portland to Idaho flights

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

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

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

What is the cheapest Portland to Idaho flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Idaho from Portland found in the last 72 hours was to Idaho Falls, at $55 round-trip. The most popular route is from Portland (PDX) to Boise (BOI), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $177.

What is the cheapest time of day to fly to Idaho?

The average price for all round-trip flights from Portland to Idaho depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Idaho is generally at night, when round-trip flights cost $251 on average. Morning departures are around 4% cheaper than evening flights, on average. The most expensive time of day to fly to Idaho is generally in the evening, which is peak travel time and where the average cost of a ticket is $297.

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

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 $257, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to Idaho, 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 is July, when tickets cost $44 (return) on average. On the other hand, the most expensive months are January and September, when the average cost of round-trip tickets is $131 and $117 respectively.

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

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

Your flight ticket price will generally be cheaper if you fly to Idaho on a Thursday and more expensive on a Sunday. On your return trip to Portland, you should consider flying back on a Friday, and avoid Sundays for better deals.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Portland to Idaho, 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 Portland to Idaho, you should book around 4 weeks before departure, which saves you about 58% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$43
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly and prices are also 9% lower on average.
Flight from Portland to Idaho Falls

FAQs - booking Idaho flights

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

    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.

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

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

    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 from Portland to Idaho with an airline and back with another airline.

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

    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 from Portland to Idaho up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from Portland to Idaho

 
See real verified KAYAK customer reviews for airlines flying from Portland to Idaho. 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? 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 12319 reviews
7.8Comfort
7.1Food
8.1Boarding
7.0Entertainment
8.5Crew
Airline reviews

very nice blankets and comfortable seats. great service. Great flights.

10.0 ExcellentAnonymous, Apr 2026
PDX - SEA
Read more Alaska Airlines reviews

very nice blankets and comfortable seats. great service. Great flights.

great experience just at the end, we got in early and there wasn't anyone at the gate for 30 min so we had to just sit on the tarmac

Generally Good. Outbound flight was marred by a continuously s creaming baby. Fortunately the flight was only 90 mins long it would be nice if people traveling with small childres could be centered in one part of the plane. Also, you need to adapt your servey to include a "not applicable " option for things like food and entertainment, which are not offered on shorter flights. I fily Alaska by choice as given all the cirumstances, I fel\el you do a good job.

I was seating in 26A and the children in 27A and B were kicking me non-stop. They kicked me for hours nonstop and the parents refused to get off their phones or correct them. I kindly asked multiple times and got screamed at by the mom that her son is disabled. I told her I get it, but that I matter too and she is responsible for her child. He then kicked me so hard my drink spilled. Not one crew member or other passenger said or did a thing. It was so horrible.

Birding was slow. extremely slow; please do experiments on efficient plane boarding experiences; especially regarding passengers that pass their seat number…

Pretty smooth ride!… a little tight in the back and would’ve loved to had a movie screen… couldn’t beat the price to the West Coast!

I like not much people. Could tell the kids to be quiet.

I liked everything except, I left a brand new Switch 2 on the plane and talking to anybody about it is nearly impossible. I had to fill out a form and hope they get back to me in the next 2 weeks. I really hope they contact me. I saved for that thing for over a year and my son is heart broken.

Fight attendant excellent Food very good, not great Seats were stiff and uncomfortable Flight was overall very nice. Last three flights were burdened with miserably uncomfortable seats. Hard stiff no padding.

The ground crew was very good. They communicated clearly and continued updating. The flight crew was fine. The flight crew on the March 20th flight from MCI to Portland was excellent.

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

The flight was very good and the staff was very friendly and helpful!

The only thing I would say is we tried to get on a standby earlier flight, but with our fair we couldn’t. That seems senseless to leave with open seats..

Very easy to use and convenient, you can perform any action within the same portal

In a world of delays, Delta was on time both ways! Boarding was fast and efficient. Staff was friendly. AND wifi worked.

WiFi didn’t work. Flight delayed 3 hours Crew members were illiterate Seat lean back did not work.

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

This wasn't my experience with Delta. It was just the Pegasus flight. Seats were very hard. Staff was kinda rough. Not very nice. Charged me for snacks. For a 4 hour flight I would've expected more.

Flight delayed two hours , missed connection flight then connection cancelled- horrible experience with hotel

Omg the disaster at the security was on another level! “Go to this end, sorry closed now, go to that end”. Ridiculous! This took over an hour! As far as the airline was concerned although I booked nearly a year ago I couldn’t get my bag tag - stand in another 15 minute line or my seat on Hawaiian Airlines- 5 more minutes! Then my TSA status was denied. Like what the heck! Makes a person not want to travel with this amount of incompetence

The Honolulu Hub needs 2 to 3 times the amount of things to do as well as shuttles that transport to/from gates and terminals. Arriving from OCONUS locations; transferring to CONUS locations its a miserable experience. Fetching and re-checking bags, then returning to a gate across the airport take longer than any other large airport. If youre confused by what I mean, the process goes like this: Disembark plane Walk a mile to the main terminal Walk half a mile to baggage claim Wait 40 minutes for baggage Walk a mile to re-check-in baggage Wait 20 minutes for checking in those bags Fo back through the wrong TSA line because the signage is poor Almost miss the connecting flight because your gate is across the airport.

The checking was disaster, the crew wasn't behave well. It took us two hours to check in, after that thr line at the TSA was long, we barely make the flight. Bad airline

Fabulous if you have a portable wheelchair. They can store it in the galley and you can just walk out with it. Really nice and the flat seats are just incredible, very nice. iPads for movies, also pretty nice,

The crew were exceptionally nice and accommodating. My wife was tired after the flight from Haneda, Tokyo. They let her sleep and served her dinner later after she woke up, before we landed in PDX.

No charging outlets worked. Other than collecting trash attendants didn’t come around. No one could hear flight attendants announcements during the flight. Seat pads were horrible. Sitting on a board for 5 hours. What happened to Hawaiian airlines comfort, hospitality, and extras? Our pilots did an excellent job trying to minimize turbulence and incredible job in landing in windy conditions.

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.

Great. No choice for n/a. No food or entertainment options

No food is available without purchasing it and there is no in-flight entertainment. Both of these are OK because we got an inexpensive flight from Allegiant and, otherwise, our experience was excellent.

just had water and there was plenty of leg & seat room. But then i don't weight 220#s!!

Not totally their fault- screaming kids that had zero parent intervention.

It was cold on the flight. The crew was very pleasant. I didn't order any food. We were delayed due to Captain waiting on maintenance log. He kept us informed though. The flight itself was smooth. I would definitely fly with Allegiant again!

I had a fantastic experience with Allegiant. I had wheelchair assistance and they helped me find my luggage and brought me to my car. Even loaded my luggage. Wonderful service!! Thank you Allegiant!

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.

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

Information on your arrival and departure airports