$79 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 2/4. 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
0 bags

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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
In the last 7 days travelers have searched 41,299,237 times on KAYAK, and here is why:

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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
Seattle1 stop$196
Spokane
Spokane1 stop$274
Portland
Portlandnonstop$89

Good to know

Low season

February

High season

December

Cheapest flight

$79
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly with an average 36% increase in price.
Flight from Idaho Falls to Seattle

FAQs - booking Washington flights

  • How long is the flight to Washington from Idaho Falls?

    Flights to Seattle1h 50m
  • What is the cheapest flight to Washington from Idaho Falls?

    The cheapest ticket to Washington from Idaho Falls found in the last 72 hours was $79 one-way, and $196 round-trip. The most popular route is from Idaho Falls to Seattle, and the cheapest round-trip airline ticket found on this route in the last 72 hours was $79.

  • Which airlines fly to Washington?

    Alaska Airlines flies most frequently to Seattle from Idaho Falls.

  • 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.

See more FAQs

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 $89 one-way - $186 round-trip; Seattle $189 one-way - $338 round-trip
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be July, August and September. The cheapest month to fly from Idaho Falls is October.
  • On average*, there is no price difference when choosing to fly in the morning or the evening on this flight route.
See more tips
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

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 9545 reviews
7.1Entertainment
8.2Boarding
8.5Crew
7.9Comfort
7.2Food
Airline reviews

Would like to see more consideration of older people. I have issues with being on my feet and walking too far. You put me in the last seat on the plane. Way in the back. Other than that everything was vey good.

8.0 ExcellentAnonymous, Dec 2024TUS - SEA
Read more Alaska Airlines reviews

Would like to see more consideration of older people. I have issues with being on my feet and walking too far. You put me in the last seat on the plane. Way in the back. Other than that everything was vey good.

Portland reservationist required me to check bag… tho always been ok as carryon before this experience. She didn’t ask my name or destination, seat number; only looked at boarding pass. She then sent my bag to wrong destination: Idaho Falls instead of Bzn, Mt. I spent 1 hr in Bzn trying to get this straightened out and locating where my bag might be? The Bozeman customer service was great and figured out the error that occurred in Seattle. They were wonderful, filed a claim and located my bag. They also offered me compensation for my problem which was helpful. Missed my meds last nite and following morning. Hope this will be resolved later today. 🙁

The app is very bugy, did not work well. Other than that it was ok.

Excellent gate to gate delivery by wheelchair staff. Really appreciate it!

The flight was delayed an hour and it was not disclosed to the passengers until it was time to board. There was no in-flight WiFI available and such poor communication overall. Unfortunate that I was going to miss my connecting flight with poor communication on alternatives.

My flight was cancelled last minute with zero acceptable options and reimbursement. I called Alaska and was told I had to pay for my own flight home so I bought a ticket for $500, I missed work worth $450. I had no babysitter for my child and her father missed work for another $480. I have diabetes and health conditions that require medication and proper diet which was extremely difficult with only $48 of vouchers and not enough medication for the extra 24 hour to 48 hour delays home. I understand things happen but the support Alaska gave wasn’t responsive enough to compensate or reimburse for the inconvenience. It took several hours to get a hotel for the night as Alaskas link was incorrect, vouchers were used and had no more rooms, people were walking the airport 10x to be told their next flights weren’t accurate home. If someone was disabled I don’t know how they even got support.

I liked The generous baggage allowance. I did not like No meals onboard.

The crew forced all group F passengers to check bags because they said there wasn't enough overhead space, but when we boarded there was TONS of space. I was pretty annoyed by that.

Flight was delayed because overhead bin didn’t close. The most insanely stupid thing I’ve ever heard.

I didn’t make it because Alaska schedule my flight too tight, I had to run to the other side of the airport, and no one helped me get off the plane early or held the plane for me… so I missed it and it was Alaskas bad, not mine

I was with one of the last zones to board. It was kind of annoying to finally get called to board and my whole section was already on the plane. Clearly they boarded with previous zones. So by the time I got on board, there were no spaces for my luggage above my head. I had to put my luggage 4+ rows behind me, which meant that I had to wait even longer to get off the plane, since I had to wait for those rows to clear the aisle before I could retrieve my luggage and exit the plane. This also held up the plane cleaners, as they couldn't service my row until I cleared it, so they were all standing there waiting for me, while I'm standing there waiting for the other passengers to clear the aisle. Anyways, I wasn't in a rush this time, so I just waited, but I could see that being a problem in the future. Now, I could have checked my luggage, of course, but coincidentally, a friend of mine on the same flight got their luggage damaged (wheel completely knocked off) and was told by the Baggage Attendant in the airport that Delta doesn't "cover wheel damage" on luggage. This was disappointing to hear. I'm glad I didn't check mine through. If it were my luggage, I'd be highly frustrated to hear that. It makes me not want to check my luggage in the future.

Inexpensive, got an exit row aisle aeat with no middle passenger, bought a great breakfast sandwich, flight comfortable & arrived ahead of schedule.

Delta was great the entertainment was outdated. Screen was very small and didn’t work.

The seats are uncomfortable, feels like a small seat pad on plywood.

My husband is very tall and we generally fly Delta Comfort. We used our companion benefit, and our seats were coach and extremely uncomfortable........ horrid even

My seat had no padding, it was literally plywood with a plastic cover. I could not change seats on my 10 hour flight. My excitement for this trip helped me deal with the pain.

I specifically picked out right side aisle seats because my left knee sometimes needs to be stretched. But my experience this trip was that the seats were shuffled and I lost those assigned seats, resulting in me having to sit in a much less desirable position for my comfort.

I notice that every time I fly delta or any American carrier, the staff seem tired, overworked, and not at the service level I’m accustomed to in Asia. They frequently crash into my arm when coming down the aisle. Food is shoved at my face with no greeting or verbal cue. The food portions seemed much smaller than usual and didn’t see much wine or beverage options. This is comfort plus? The plane was old and tired. The bathroom was dripping with mineral stains after a long lack of cleaning. The power socket did not work, although the USB output did. I really wonder why I’m flying Delta, I think it’s time to switch to ANA.

Other airlines were canceling flights but Delta got us home. Crew was friendly and professional. It would have been nice to have had a little more notice about the delays because we had already arrived at the airport when the first of several delays were communicated but I understand that storm forecasting isn’t simple and we were grateful that Delta didn’t just cancel the flight.

The flight was great. The crew were a little terse about the size of my bag. It fit fine.

Book cheap flights from Idaho Falls to Washington

Recent round-trip flight deals

 
These are the cheapest round-trip flights from Idaho Falls to Washington found on KAYAK in the last 72 hours.
2/10ב'
nonstopAllegiant Air
1h 54mIDA-PDX
2/14ו'
nonstopAllegiant Air
1h 38mPDX-IDA
$89
3/21ו'
nonstopAllegiant Air
1h 40mIDA-PDX
3/24ב'
nonstopAllegiant Air
1h 38mPDX-IDA
$136
1/16ה'
1 stopDelta
4h 45mIDA-SEA
1/22ד'
1 stopDelta
6h 00mSEA-IDA
$196
1/9ה'
nonstopAlaska Airlines
2h 10mIDA-SEA
1/10ו'
nonstopAlaska Airlines
1h 38mSEA-IDA
$197
1/9ה'
1 stopDelta
6h 53mIDA-SEA
1/10ו'
1 stopDelta
6h 00mSEA-IDA
$216
5/16ו'
nonstopAlaska Airlines
1h 59mIDA-SEA
5/19ב'
nonstopAlaska Airlines
1h 43mSEA-IDA
$218
4/17ה'
nonstopAlaska Airlines
1h 49mIDA-SEA
4/21ב'
nonstopAlaska Airlines
1h 40mSEA-IDA
$248
1/19א'
1 stopAmerican Airlines
10h 00mIDA-SEA
1/20ב'
1 stopAmerican Airlines
9h 37mSEA-IDA
$467
1/16ה'
1 stopUnited Airlines
15h 11mIDA-SEA
1/22ד'
2 stopsUnited Airlines
14h 23mSEA-IDA
$505
1/19א'
2 stopsUnited Airlines
21h 52mIDA-SEA
1/20ב'
2 stopsUnited Airlines
20h 53mSEA-IDA
$507

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Idaho Falls to Washington found on KAYAK in the last 72 hours.
2/4ג'
nonstopAlaska Airlines
1h 52mIDA-SEA
$79
2/4ג'
1 stopDelta
6h 52mIDA-SEA
$88
6/3ג'
nonstopAlaska Airlines
1h 59mIDA-SEA
$119
1/18ש'
1 stopAlaska Airlines
5h 42mIDA-PDX
$137
1/7ג'
nonstopAlaska Airlines
2h 10mIDA-SEA
$149
1/18ש'
2 stopsAlaska Airlines
24h 53mIDA-PDX
$175
1/3ו'
1 stopDelta
4h 17mIDA-GEG
$190
2/4ג'
2 stopsUnited Airlines
24h 25mIDA-SEA
$278
2/4ג'
3 stopsUnited Airlines
22h 12mIDA-SEA
$299
6/3ג'
2 stopsUnited Airlines
27h 06mIDA-SEA
$382

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Last minute flights from Idaho Falls to Washington

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Idaho Falls to Washington that are departing in the next 10 days.
12/23ב'
nonstopAllegiant Air
1h 49mIDA-PDX
12/27ו'
nonstopAllegiant Air
1h 38mPDX-IDA
$233
12/21ש'
multi-stopDelta
6h 31mIDA-SEA
12/30ב'
multi-stopDelta
4h 21mSEA-IDA
$521
12/22א'
multi-stopDelta
6h 20mIDA-PDX
12/26ה'
multi-stopDelta
4h 11mPDX-IDA
$669
12/21ש'
nonstopAlaska Airlines
1h 57mIDA-SEA
12/31ג'
nonstopAlaska Airlines
1h 44mSEA-IDA
$733
12/20ו'
multi-stopDelta
4h 22mIDA-PDX
12/23ב'
multi-stopDelta
4h 11mPDX-IDA
$747
12/23ב'
multi-stopAlaska Airlines
6h 06mIDA-GEG
12/30ב'
multi-stopAlaska Airlines
9h 37mGEG-IDA
$783
12/20ו'
multi-stop
27h 19mIDA-PDX
12/23ב'
nonstop
1h 38mPDX-IDA
$837
12/23ב'
multi-stopUnited Airlines
29h 37mIDA-GEG
12/25ד'
multi-stopUnited Airlines
29h 06mGEG-IDA
$1,223
12/20ו'
multi-stop
27h 19mIDA-PDX
12/23ב'
multi-stop
7h 33mPDX-IDA
$1,243
12/20ו'
multi-stopUnited Airlines
12h 42mIDA-PDX
12/23ב'
multi-stopUnited Airlines
14h 22mPDX-IDA
$1,374

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

Information on your arrival and departure airports

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