$65 Find Cheap Flights from Idaho Falls to Washington

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 Washington departing on 7/11. 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.
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KAYAK searches hundreds of travel sites at once for deals on flights to Washington

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

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Seattle
Seattlenonstop$184
Spokane
Spokane1 stop$278
Portland
Portlandnonstop$130
Seattle
Seattlenonstop$184
Spokane
Spokane1 stop$278
Portland
Portlandnonstop$130

Cheap Flights from Idaho Falls to Washington

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

Recent round-trip flight deals from Idaho Falls to Washington

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Idaho Falls to Washington.
Discover the best prices for you by selecting your travel dates on KAYAK.
Allegiant Air Logo
4:50 pm - 5:29 pmIDA-PDX
1h 39mnonstop
Allegiant Air Logo
1:21 pm - 4:00 pmPDX-IDA
1h 39mnonstop
$130Allegiant Air
Find Deal
Fri, May 23 - Mon, May 26
Alaska Airlines Logo
6:15 am - 7:11 amIDA-SEA
1h 56mnonstop
Alaska Airlines Logo
12:37 pm - 3:23 pmSEA-IDA
1h 46mnonstop
$184Alaska Airlines
Find Deal
Thu, Aug 14 - Thu, Aug 21
Hawaiian Airlines Logo
6:00 am - 6:50 amIDA-SEA
1h 50mnonstop
Hawaiian Airlines Logo
12:52 pm - 3:40 pmSEA-IDA
1h 48mnonstop
$207Hawaiian Airlines
Find Deal
Wed, May 28 - Sat, May 31
Hawaiian Airlines Logo
6:00 am - 6:50 amIDA-SEA
1h 50mnonstop
Hawaiian Airlines Logo
7:55 pm - 10:34 pmSEA-IDA
1h 39mnonstop
$217Hawaiian Airlines
Find Deal
Tue, May 27 - Tue, Jun 3
Delta Logo
3:04 pm - 6:25 pmIDA-SEA
4h 21m1 stop
Delta Logo
5:30 am - 10:34 amSEA-IDA
4h 04m1 stop
$257Delta
Find Deal
Fri, Aug 8 - Sun, Aug 10
Delta Logo
6:50 pm - 11:38 pmIDA-GEG
5h 48m1 stop
Delta Logo
4:56 pm - 10:51 pmGEG-IDA
4h 55m1 stop
$279Delta
Find Deal
Tue, May 27 - Tue, Jun 3
United Airlines Logo
5:00 am - 9:58 pmIDA-SEA
17h 58m3 stops
United Airlines Logo
8:58 am - 10:51 pmSEA-IDA
12h 53m1 stop
$486United Airlines
Find Deal
Wed, May 28 - Wed, Jun 4
United Airlines Logo
5:00 am - 12:59 amIDA-SEA
20h 59m2 stops
United Airlines Logo
10:50 am - 10:51 pmSEA-IDA
11h 01m1 stop
$500United Airlines
Find Deal
Wed, May 21 - Thu, Jun 5
 Logo
5:00 am - 2:55 pmIDA-SEA
10h 55m1 stop
 Logo
12:52 pm - 3:40 pmSEA-IDA
1h 48mnonstop
Wed, May 21 - Thu, Jun 5
 Logo
5:55 pm - 10:35 pmIDA-SEA
5h 40m1 stop
 Logo
7:55 pm - 10:39 pmSEA-IDA
1h 44mnonstop
Tue, Jun 17 - Tue, Jun 24
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KAYAK's insights & trends for Idaho Falls to Washington flights

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

What is the cheapest Idaho Falls to Washington flight route?

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

The cheapest ticket to Washington from Idaho Falls found in the last 72 hours was to Seattle, at $205 round-trip. The most popular route is from Idaho Falls (IDA) to Seattle (SEA), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $205.

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

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 $310, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Idaho Falls to Washington, 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 Washington is April, when tickets cost $227 (return) on average. On the other hand, the most expensive months are January and August, when the average cost of round-trip tickets is $373 and $348 respectively.

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

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

Your flight ticket price will generally be cheaper if you fly to Washington on a Thursday and more expensive on a Tuesday. On your return trip to Idaho Falls, you should consider flying back on a Wednesday, and avoid Mondays for better deals.

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

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 Washington, 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 Washington, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.


Good to know

Low seasonJanuary
High seasonJune
Cheapest flight$65
Best time to beat the crowds with an average 0% drop in price.
Most popular time to fly and prices are also 13% lower on average.
Flight from Idaho Falls to Portland

FAQs - booking Washington flights

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

    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 Washington.

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

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

    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 Idaho Falls to Washington 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 Idaho Falls to Washington?

    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 Idaho Falls to Washington 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 Washington?

    The cheapest time of day to fly to Washington is generally at night, when round-trip flights cost $240 on average. Morning departures are around 15% more expensive than evening flights, on average. The most expensive time of day to fly to Washington is generally in the morning, which is peak travel time and where the average cost of a ticket is $514.

Top tips for finding cheap flights to Washington

  • Looking for a cheap flight? 25% of our users found tickets from Idaho Falls to the following destinations at these prices or less: Portland $54 one-way - $86 round-trip; Seattle $159 one-way - $253 round-trip

Top airlines flying from Idaho Falls to Washington

 
See real verified KAYAK customer reviews for airlines flying from Idaho Falls to Washington. 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 Washington? 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 9968 reviews
8.2Boarding
7.1Food
7.9Comfort
7.1Entertainment
8.5Crew
Airline reviews

Booked a premium seats weeks ago and got an email the night before that id instead be seated in the cabin. Only reason I booked this overnight flight was for the better seating. All they are doing to compensate is giving a $29 coupon to use on another flight. I won’t be booking this airline again.

4.0 OkayAnonymous, Apr 2025EWR - SEA
Read more Alaska Airlines reviews

Booked a premium seats weeks ago and got an email the night before that id instead be seated in the cabin. Only reason I booked this overnight flight was for the better seating. All they are doing to compensate is giving a $29 coupon to use on another flight. I won’t be booking this airline again.

It was all great all around. Will travel with Alaska next trip.

There was no seating at the gate, no where to charge your devices, super crowded. Boarding in group F meant all luggage space was taken when it was time for me to board. The boarding crew was short with everyone and seemed irritated. The luggage space was insufficient, the seat was too small for me (6'4") and very uncomfortable trip. I was in a middle seat between a person snoring the whole trip and a person with very strong body odor. The flight crew was terse and unfriendly, seemed irritated and impatient. Yelled a lot at people with earbuds in, understandable. Finally, we arrived 10 minutes early, only to sit on the tarmac for 20 minutes and wait for a gate. Worst flight experience I've had in years.

Flight 351 SEA to BOI was terrible. We got to cruising altitude and I needed to use the restroom but the fasten seatbelt sign never came off. There was no turbulence and I'd felt the plane level off so I stood up to use the restroom about 15 minutes after we leveled off. The stewardess went over the intercom and said I needed to be seated because the captain hadn't turned off the fasten seatbelt sign....Which... Fair.... But not five minutes later she went and used the bathroom. Felt very unprofessional to leave a paying customer with a burning urethra for the entire flight and bark at them to sit down and still use the bathroom yourself. They never did turn off the seatbelt sign.

For longer trips, snacks are puny, boring and don’t have ANY nutritional value.

Upgraded to first class both times .The flight attendant Spicy Tim.was excellent and very amusing.

Close boarding too early we’re willing to not let people on flight that could not check in. What ever happened to customer service? Three of us had to fight to get on plane shameful

Check your emails that you sent me. 9 emails were sent telling me that my flight is Delayed. Each one with a different time 7:10, 7:55, 9:31, 9:09, 9:29, 9:44, 10:00, 9:49, and 10:10. That was how my experience went.

Made us check our carry on,even though there was plenty of room because they didn't check with the flight crew. Also boarding was 40min late, due to the plane being on the wrong side of the airport. Also their app didn't record my tsa precheck

The flight was delayed due to a safety check. Why couldn't that have been done ahead of time? We got to Seattle with enough time to make our connecting flight but they kept changing the gate so we missed it. There were at least ten of us who missed the flight. The airline was aware. They could have waited. They didn't. Our new flight was not for seven hours and then was delayed another two hours. We got the last seats which don't recline. Super uncomfortable after a long day spent at the worst airport. Did they offer us a meal voucher or anything? On top of that Alaska Airlines didn't complete my ticket to the new flight. I wasn't sure I would get on this horrible flight, either. Oh, and it's ten o'clock at night....no food. Is this how Alaska Airlines treats its customers? I'll never fly with this airline again.

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

The Dekta Rep that checked us in was great. She's very personable, pleasant, and can tell she enjoys her job.

The plane was old with small storage areas that had problems closing/latching and not enough storage for everyone, and worn, damaged seats. Service was great but feel a little unsafe on such well used planes.

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

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