$46 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 8/4. 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

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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Flights Deals

Best Idaho Flight Deals from Portland

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Boise
Boisenonstop$147
Idaho Falls
Idaho Fallsnonstop$88
Hailey
Hailey1 stop$320
Lewiston
Lewiston1 stop$356
Twin Falls
Twin Falls1 stop$356
Pocatello
Pocatello1 stop$427
Spokane
Spokanenonstop$157
Boise
Boisenonstop$147
Idaho Falls
Idaho Fallsnonstop$88
Hailey
Hailey1 stop$320
Lewiston
Lewiston1 stop$356
Twin Falls
Twin Falls1 stop$356
Pocatello
Pocatello1 stop$427
Spokane
Spokanenonstop$157

Cheap Flights from Portland to Idaho

 
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 11 - Mon, Jul 14
Allegiant Air Logo
1:38 pm - 4:14 pmPDX-IDA
1h 36mnonstop
Allegiant Air Logo
5:04 pm - 5:41 pmIDA-PDX
1h 37mnonstop
$88Allegiant Air
Find Deal
Mon, Jul 14 - Mon, Jul 21
Allegiant Air Logo
1:38 pm - 4:14 pmPDX-IDA
1h 36mnonstop
Allegiant Air Logo
5:04 pm - 5:41 pmIDA-PDX
1h 37mnonstop
$91Allegiant Air
Find Deal
Wed, Aug 27 - Sat, Aug 30
Alaska Airlines Logo
2:30 pm - 4:50 pmPDX-BOI
1h 20mnonstop
Alaska Airlines Logo
6:00 am - 6:20 amBOI-PDX
1h 20mnonstop
$147Alaska Airlines
Find Deal
Fri, Aug 29 - Tue, Sep 2
Alaska Airlines Logo
7:00 am - 8:08 amPDX-GEG
1h 08mnonstop
Alaska Airlines Logo
3:30 pm - 4:46 pmGEG-PDX
1h 16mnonstop
$157Alaska Airlines
Find Deal
Fri, Aug 22 - Sun, Aug 24
Hawaiian Airlines Logo
2:30 pm - 4:50 pmPDX-BOI
1h 20mnonstop
Hawaiian Airlines Logo
6:00 am - 6:20 amBOI-PDX
1h 20mnonstop
$157Hawaiian Airlines
Find Deal
Thu, Aug 14 - Sun, Aug 17
Hawaiian Airlines Logo
9:59 pm - 11:04 pmPDX-GEG
1h 05mnonstop
Hawaiian Airlines Logo
5:06 am - 6:12 amGEG-PDX
1h 06mnonstop
$167Hawaiian Airlines
Find Deal
Fri, Aug 29 - Tue, Sep 2
Delta Logo
3:18 pm - 9:11 pmPDX-GEG
5h 53m1 stop
Delta Logo
6:10 am - 10:34 amGEG-PDX
4h 24m1 stop
$179Delta
Find Deal
Thu, Aug 14 - Sun, Aug 17
Delta Logo
5:45 pm - 11:08 pmPDX-GEG
5h 23m1 stop
Delta Logo
5:00 am - 10:34 amGEG-PDX
5h 34m1 stop
$189Delta
Find Deal
Fri, Aug 22 - Sun, Aug 24
Spirit Airlines Logo
12:03 pm - 6:26 pmPDX-BOI
5h 23m1 stop
Spirit Airlines Logo
7:30 pm - 11:08 amBOI-PDX
16h 38m1 stop
$213Spirit Airlines
Find Deal
Mon, Aug 4 - Fri, Aug 8
Spirit Airlines Logo
10:23 am - 6:52 pmPDX-BOI
7h 29m1 stop
Spirit Airlines Logo
7:48 pm - 2:15 pmBOI-PDX
19h 27m1 stop
$214Spirit Airlines
Find Deal
Useful Info

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?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Portland to Idaho.

The cheapest ticket to Idaho from Portland found in the last 72 hours was to Idaho Falls, at $44 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 $167.

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 $251, 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 $218 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $328 and $316 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 Thursday. 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. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.


Good to know

Low seasonMay
High seasonDecember
Cheapest flight$46
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly with an average 7% increase in price.
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.

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

    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 15% 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 $319.

Top 5 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 10000 reviews
7.1Food
8.1Boarding
7.8Comfort
8.5Crew
7.1Entertainment
Airline reviews

On time, smooth take off and landing, efficient boarding. Gate staff excellent, stewardess grumpy, but civil enough.

10.0 Excellentmarlene, Jun 2025PDX - SMF
Read more Alaska Airlines reviews

On time, smooth take off and landing, efficient boarding. Gate staff excellent, stewardess grumpy, but civil enough.

No WiFi available. It was too late to order food also. Guy next to me was huge (not fat) so had his shoulder & thigh next to me the whole way. Plane was delayed leaving PDX due to 8 other planes waiting. Not my best Alaska airlines flight.

Check in, they should have told me that upon arrival i needed to exit the secure area and re-check in with Eva Air. I wasn't sure what to do upon arrival at S.F.

The direct service from Logan to PDX made travel so easy, I really appreciate this route. Pilots were very communicative with passengers about conditions and expectations. Everyone on staff was pleasant and helpful. Boarding was easy and efficient.

Flight last minute delayed 2 hours for crew calling out sick

Husband was new to the wheelchair accommodations this trip. What a blessing that was. All employees were helpful and customer service was excellent

Seats are still too crowded and uncomfortable on long flights like this cross country one.

Laney was very helpful. I am computer illiterate. She helped me obtain a boarding pass and preferred seat. She was warm, friendly, helpful, and smiled. I was impressed.

The actual flight I was rescheduled onto was from Seattle to Bozeman. The flight itself was fine, but due to delays/air traffic issues i spent the day hanging out at the Seattle airport and had to miss a day of work.

OUr pilot was very good and also a good landing in a very gusting Phoenix. Most important.

The flight was scheduled for 2:30 PM. Early in the morning we got a text message saying the flight was delayed and rescheduled for 3:00 PM. We got to the airport with that in mind. Then we got a message during check-in at the flight was rescheduled again for 2:30 PM. We almost missed our flight. In fact, our bags Were told that they would not make it. At the end, everything worked out. But it is very stressful.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Excellent check-in. Crew was good. Excellent communication from flight deck.

Great overall. There was a bit of turbulence so they could only serve water because too much turbulence for the carts. Was glad they prioritized safety though

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

Amazing flight! I have never noticed the uniforms of the attendants before in twenty years of flying except today when one female had the most amazing dress on. It was beautifully designed and showed she was in charge. I never dreamed I would google who designed Delta uniforms . The ultimate compliment is when another woman admires your outfit. . I hope your designer puts it on the market

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

My flight was 6 pm 6/6. Every hour they delayed it again - air condition issues then no pilot then the crew had worked too many hours and cancelled the flight at 11 pm. Sent customers to NJ a 45 minutes uber ride to a hotel. Had to be back by 5 am for a 7 am flight and again no pilot etc with another three hours of delays.

The ticket and bag check in was chaotic at SEATAC. No clear communication or signage for bag drop off.

This was actually an Alaska flight. I was not able to check in online using the Kayak app or the web for Hawaiian or Alaska airlines. So I contacted Hawaiian and they advised that I had to go to the counter when I arrive at the airport. So I waited in line at the Hawaiian counter for 45 minutes. When I got to the ticket agent she advised that I needed to go to the Alaskan Airlines ticket counter. So I went to that counter which thankfully was not busy. I received my boarding pass and then went to security. I arrived at the gate as boarding was beginning. The frustration is that Hawaiian or Kayak should have directed me to the correct ticket counter. When it is “operated by” a average person doesn't know what that means. Kayak app was silent on what action to take when I was unable to check in online and Hawaiian just stated my ticket number and confirmation numbers were invalid. Communication is key and this process could be cleaned up. Thank goodness I am savvy and speak English, I can’t imagine this process for someone who may not be.

If I knew I would be on Alaska Airlines flying back, I never would have bought the ticket. My flight kept getting delayed and Alaska always seems to be late which is why I don’t fly on them.

Good. They changed our gate very late and then when we landed, we had to wait 20 minutes to get off the airplane because another plane was in a slot.

Very nice experience. The boarding however seemed somewhat mixed up, and we were delayed taking off.

Flight was canceled with no voucher of any kind and next available flight was two days later.

Boarding was chaotic. Microphone not working properly and second agent was distracted from task with baggage and late arrivals.

I DID NOT GO TO HAWAII ON HAWAIIAN AIRLINES. YOU DID NOT INFORM ME THAT BY CHOOSING BASIC ECONOMY, I MIGHT BE REQUIRED TO FLY STANDBY. I AM ELDERLY AS WAS MY COMPANION WHO IS ALSO SEVERELY DISABLED AND THERE WOULD BE NO WAY WE COULD TRAVEL ON STANDBY. THEY TOLD ME THAT ALL OF THE BASIC ECONOMY SEATS HAD BEEN SELECTED BY OTHER PASSENGERS AND WE HAD TO PAY AN ADDITIONAL $942 TO GET A SECURED SEAT ON THE PLAN AND, IN SPITE OF THE ADDITIONAL COST, WE WERE NOT ALLOW US TO AMEND OUR TRAVEL PLANS TO EXTEND OUR VACATION. ULTIMATELY, THE FLIGHT WAS DELAYED. WE WERE OFFERED A REFUND IF WE CANCELED OUR TRIP ALTOGETHER WHICH WE DID. IT IS YOUR DUTY TO INFORM YOUR CUSTOMERS OF THE POTENTIAL PROBLEMS THEY MAY FACE, AND YOU DID NOT DO SO. I WILL NOT UTILIZE YOUR SERVICES EVER AGAIN.

It was very pleasant. The staff and crew are very polite.

On time. Alaska upgraded seat comfort with memory foam seat covers with head rests

Tight! Seats are not designed for those of us who wear extra-large clothes.

The non-stop flight from Grand Rapids was excellent. I neither expected or needed a budget flight and Allegiant made the trip easy and for an affordable price, Arriving at the Mesa Airport (AZA) is a delight compared to the international airport. For our return flight, we were able to arrive 75 minutes before the flight, return the rental car, check our bag and make it to the gate in plenty of time. That would never happen at most airports.

Easiest flights I’ve ever taken. Plane was comfortable without overly crowded seating.

Terrible. Still have not received the refund from them. They sent it to some account that I don't even know. Spoke with costumer service and they are unable to help.

I didn’t like it at all. I miss my second flight because of the delay on Allegiant Air now I m stuck in MCO.

Good, but a bit late on take off after loading. Don't like charging for carry ons!

First time flying with them and will definitely fly again in the future. Crew was so nice and friendly, fought was seamless. They are simple planes, no entertainment, but it’s fine for a short flight or if you have personal devices Rates are competitive, and they did so well with keeping the flight on time after a tropical storm, where other airlines had delays and cancellations.

They boarded passengers that sat in the back of the plane first, making boarding very efficient.

I didn't even take this flight. My plans changed and I couldn't get ahold of customer service and the website kept breaking down during the attempt to change the flight. I wound up taking another airline entirely and eating the cost.

The worst flying experience ever 3 delays. No accommodations. Had to deboard the plane after being delayed.

Didn't like size of seats. Found charges for checked luggage and carry on too high

Great! We boarded on time! Everything went so smoothly! The flight was so smooth

Spirit gets you there; it's no worse than any other aircraft, all things considered. (It's not like everyone else is such a hero). But - holy moses - do they nickel and dime you to absolutely every nickel - I was really expecting to have to pay to use the bathroom. And when the captain comes on with a 5 minute sales pitch about getting "points", that was like something on Bizarro world. Other than that, everyone else was professional and worked hard to get us from point A to point B. I'm not loving all the "self-service" stuff but there it is - just when the machines don't work you don't have anyone to talk to.

Boarding was a breeze, however, two of the flights that I boarded with Spirit did not have Wi-Fi available.

Seats uncomfortable, hard to check luggage, etc. It was like the last flight out of Hanoi

Need screens for tv/movies. Seats are more cramped than any other airlines. Seats are hard. They don’t recline. And in flight time should not be used for sales pitches.

Good experience except for the drunk woman who was with a child. Sad

The ease of booking the flight was very good. Speaking with customer service was also good. However, the crew people are unfriendly and unwelcoming which I found this as unprofessional. As far as comfort it was mediocre. This was my first time flying Spirit and I chose them because of the flight times met my needs and my budget. However, I would be reluctant to fly on Spirit again. In addition, if the crew were more friendly and at least appeared somewhat happy and welcoming personally it would probably make the experience of flying with Spirit better.

Tell them to chose a better, less bumpy route :( my seat had no window all the way at the end 😔

Seats too hard, too much lumbar. Space between rows was extremely tight, so tight hard to place item under seat in front of me. No tv screens. Zero plugs for charging phones. Too many sales pitches

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

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