$74 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 3/4. 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
Boise1 stop$151
Idaho Falls
Idaho Falls1 stop$198
Hailey
Hailey2 stops$225
Lewiston
Lewiston1 stop$316
Twin Falls
Twin Falls1 stop$316
Pocatello
Pocatello1 stop$367
Spokane
Spokanenonstop$157
Boise
Boise1 stop$151
Idaho Falls
Idaho Falls1 stop$198
Hailey
Hailey2 stops$225
Lewiston
Lewiston1 stop$316
Twin Falls
Twin Falls1 stop$316
Pocatello
Pocatello1 stop$367
Spokane
Spokanenonstop$157

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

Tue, Feb 24 - Tue, Mar 3
Southwest Logo
9:55 am - 2:55 pm
PDX
-
BOI
4h 00m
1 stop
Southwest Logo
3:35 pm - 10:05 pm
BOI
-
PDX
7h 30m
1 stop
$151Southwest
Tue, Feb 24 - Tue, Mar 3
Southwest Logo
9:00 am - 2:20 pm
PDX
-
BOI
4h 20m
1 stop
Southwest Logo
3:35 pm - 10:35 pm
BOI
-
PDX
8h 00m
2 stops
$156Southwest
Wed, Feb 25 - Wed, Mar 4
Alaska Airlines Logo
9:40 pm - 10:51 pm
PDX
-
GEG
1h 11mnonstop
Alaska Airlines Logo
5:00 am - 6:28 am
GEG
-
PDX
1h 28mnonstop
$157Alaska Airlines
Fri, Feb 20 - Sun, Feb 22
Alaska Airlines Logo
9:40 pm - 11:59 pm
PDX
-
BOI
1h 19mnonstop
Alaska Airlines Logo
5:40 am - 6:11 am
BOI
-
PDX
1h 31mnonstop
$157Alaska Airlines
Sat, Feb 28 - Sun, Mar 1
Hawaiian Airlines Logo
7:05 am - 8:24 am
PDX
-
GEG
1h 19mnonstop
Hawaiian Airlines Logo
5:00 am - 6:28 am
GEG
-
PDX
1h 28mnonstop
$159Hawaiian Airlines
Sat, Feb 28 - Sun, Mar 1
Hawaiian Airlines Logo
6:00 am - 11:06 am
PDX
-
GEG
5h 06m
1 stop
Hawaiian Airlines Logo
5:00 am - 6:28 am
GEG
-
PDX
1h 28mnonstop
$163Hawaiian Airlines
Thu, Feb 19 - Tue, Feb 24
Southwest Logo
5:50 am - 1:15 pm
PDX
-
BOI
6h 25m
1 stop
Southwest Logo
3:35 pm - 10:35 pm
BOI
-
PDX
8h 00m
2 stops
$164Southwest
Wed, Feb 25 - Wed, Mar 4
Delta Logo
3:59 pm - 8:56 pm
PDX
-
GEG
4h 57m
1 stop
Delta Logo
3:45 pm - 6:48 pm
GEG
-
PDX
3h 03m
1 stop
$167Delta
Fri, Feb 20 - Mon, Feb 23
Delta Logo
1:27 pm - 8:15 pm
PDX
-
BOI
5h 48m
1 stop
Delta Logo
5:15 pm - 8:55 pm
BOI
-
PDX
4h 40m
1 stop
$167Delta
Sat, Feb 21 - Wed, Feb 25
United Airlines Logo
7:30 am - 2:16 pm
PDX
-
JAC
5h 46m
1 stop
United Airlines Logo
4:27 pm - 9:15 pm
JAC
-
PDX
5h 48m
1 stop
$297United 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.

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 $131 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 $137.

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 $348, 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 April, when tickets cost $197 (return) on average. On the other hand, the most expensive months are November and January, when the average cost of round-trip tickets is $318 and $298 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 Wednesday and more expensive on a Monday. 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 57% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Low seasonNovember
Cheapest flight$74
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from Portland to Boise

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.

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

    The cheapest time of day to fly to Idaho is generally in the afternoon, when round-trip flights cost $275 on average. Morning departures are around 3% cheaper than evening flights, on average. The most expensive time of day to fly to Idaho is generally at night, which is peak travel time and where the average cost of a ticket is $297.

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.
8.0
Alaska AirlinesOverall score based on 11806 reviews
7.0Entertainment
7.1Food
7.8Comfort
8.5Crew
8.1Boarding
Airline reviews

Everything from the time I booked my flight through to the end when I got home was smooth and wonderful. Service was great, the flight attendants were attentive and there were no outstanding delays.

10.0 ExcellentJacqueline, Jan 2026
PDX - FAT
Read more Alaska Airlines reviews

Everything from the time I booked my flight through to the end when I got home was smooth and wonderful. Service was great, the flight attendants were attentive and there were no outstanding delays.

Delayed and no entertainment? I also forgot my headphones and immediately reported it and have not heard back yet.

The crew was very friendly. Boarding was quick and efficient.

You need categories to note when food and entertainment are not available. Alaska's system would not update flight info on the board for this flight, so there was some confusion after deplaning from the previous flight as to which gate and depart time were accurate for this flight.

we waited for 50 minutes to check a bag and missed a flight. do better.

The flight crew was very professional and pleasant. Our flight was delayed 3 hours, but Kayak informed me in advance

Before I even boarded this old white man , a fat Samoan lady, and a short brown guy were at the desk. They asked if we could have 15 volunteers to get free checked bags cause it was a full flight. I waited in line, I got up to the short brown guy and he asked for my boarding pass and I showed him, he said that he can’t check my bag because I wasn’t given a seat yet. So he had me go to the next line with the old white guy, but before I switched lines I asked him, well if I go to that line, will I be able to check my bag so I waited in line and he said yeah, it doesn’t matter , I’m good. So I switch lines and wait in the line of the old white man, with every guest before me he was very sweet , making small talk, smiling and had great eye contact( all of the people he was talking to was white) I come up and he doesn’t look at me , then says I’ll be right with you, I wait for him to initiate and when he does he’s like what’s up? I was like the man next to you told me I needed to get checked in before I can check my bag. He’s like what’s your last name and I say Valenzuela , and he said we’re not there yet, all while not smiling, no eye contact like he was with the other guests. He said we’re will call you when I get to you. So I go sit down and I’m sitting down for less than a minute and he calls me and someone else. I go up and say Valenzuela and he’s like who are you and I’m like Valenzuela , he’s like hmm and says don’t go anywhere and calls someone else. I finally get my seat and I go back to the short brown man and ask if I can check my bag and he said there isn’t any room available and I was like? Wait you told me and then the fat Samoan lady said yeah we don’t need anymore bags thank you. I was dumbfounded and just walked away. So rude. Terrible experience and terrible communication on their end.

The flight was delayed, but once it arrived everything moved right along.

Coke zero offered...good. The proptness of flight was late. This has been a everytime thing for my last 9 flights. And is putting alot of pressure on my connecting flights. Not a bit punctual. I am always early, but Ak. Airlines is not. And people i happen fly beside, parrot the same thing. The baggage delivery to baggage claim, is not prompt. Its slowwwww. The seats are poorly padded, very crowd. We need more room, not padding the airlines bottom line. Its like a cattle car. More leg room, more side to side room. And attendants need upgrade of verbal skills. I have been faithful to Ak. A., but it will change if changes are not made. Not the only planes in the sky.

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.

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Outdated equipment in disrepair, wifi inoperable. Broken seats, taped air vents, generally poor condition, the 717 showed its age and lack of upkeep.

My flight out of Baton Rouge to Atlanta was delayed by a half hour. This got us into Atlanta airport 30 minutes late. I ran through the airport to get to my connecting flight. As I approached the boarding gate, I saw the boarding door was still open and a passenger was being checked in. But when I got to the gate, the boarding agent told me they had already given away my seat and there were no empty seats on that flight. So I had to take a later flight. That has never happened to me before. Very frustrating.

Connection through Atlanta was difficult. Mechanical issue on plane caused a two hour delay. New gate was a mile away.

No WiFi. Comfort plus should have alcohol provided, crew only offered water or tea. Who the heck wants tea?

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.

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.

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

Information on your arrival and departure airports