$48 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 4/14. 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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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$198
Spokane
Spokane1 stop$251
Pasco
Pasco1 stop$251
Portland
Portlandnonstop$86

Good to know

Low season

February

High season

June

Cheapest flight

$48
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly and prices are also 26% lower on average.
Flight from Idaho Falls to Portland

FAQs - booking Washington flights

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

    Flights to Seattle1h 49m
  • 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 $48 one-way, and $86 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 $49 one-way - $126 round-trip; Seattle $179 one-way - $327 round-trip
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be October, November and December. The cheapest month to fly from Idaho Falls is February.
  • Morning departure is around 29% more expensive than an evening flight, on average*.
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 9706 reviews
7.1Entertainment
7.1Food
8.2Boarding
8.5Crew
7.9Comfort
Airline reviews

We don't have food or entertainment on this flight. We were late boarding but then arrived in Yakima early. Kayak sent me a delay notice but we weren't delayed.

8.0 ExcellentAnonymous, Jan 2025SEA - YKM
Read more Alaska Airlines reviews

We don't have food or entertainment on this flight. We were late boarding but then arrived in Yakima early. Kayak sent me a delay notice but we weren't delayed.

Nothing! I just didn't eat or use entertainment. I had three seats all to myself and it was wonderful!!!!

The kiosk for check in/bag check in. I liked the older version where you did everything on the kiosk (check in and bag tags). This time I needed to use my phone to check in and then scan the ticket from my phone to complete the bag tags. I didn't care for this new method. The older method was simpler.

Weather caused delays, but since I was in no hurry I asked to reschedule for any other day to make room for anyone in need of keeping their schedule. Alaska accommodated my request with an extra bonus - with a credit to my account for another day…. Always had great experience with the Alaska folks.

Overall it was a good flight. No issues. Alaska Airlines is always my first choice.

My seat was comfortable. There was no TV on the airplane.

On time (in fact, early). Easy boarding and getting off.

they took my carryon at the gate for free. Everything went smoothly.

It was delayed twice and they still want $8 for wifi so i had to sit for an hour.

Excellent flight and on time. Will fly with Alaska again in future

Great service. Great staff. Boarding was a little slow, but I think there was a service dog slowing things down.

Flight left early and arrived early. the whole trip was excellent.

Seats were really tight and the seat belts did not give enough slack.

I like in St George and prefer to fly out of CDC than SGU. Hopefully, they will continue the flights out of Cedar

Overall, it was okay. Seat was a little cramped. Would’ve liked more substantial snacks or opportunity to buy some.

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.

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.
2/21Fri
nonstopAllegiant Air
1h 40mIDA-PDX
2/28Fri
nonstopAllegiant Air
1h 38mPDX-IDA
$86
2/21Fri
nonstopAllegiant Air
1h 40mIDA-PDX
2/28Fri
nonstopAllegiant Air
1h 38mPDX-IDA
$90
3/3Mon
1 stop
12h 49mIDA-PDX
3/7Fri
nonstop
1h 38mPDX-IDA
$140
2/17Mon
1 stop
12h 48mIDA-PDX
2/24Mon
nonstop
1h 38mPDX-IDA
$156
4/3Thu
nonstopAlaska Airlines
1h 58mIDA-SEA
4/8Tue
nonstopAlaska Airlines
1h 40mSEA-IDA
$198
2/24Mon
1 stopDelta
6h 52mIDA-SEA
2/26Wed
1 stopDelta
4h 39mSEA-IDA
$227
2/7Fri
nonstopAlaska Airlines
2h 10mIDA-SEA
2/9Sun
nonstopAlaska Airlines
1h 38mSEA-IDA
$238
2/24Mon
1 stopDelta
4h 16mIDA-GEG
2/27Thu
1 stopDelta
4h 03mGEG-IDA
$251
2/24Mon
1 stopUnited Airlines
17h 05mIDA-SEA
2/26Wed
2 stopsUnited Airlines
17h 36mSEA-IDA
$484
2/24Mon
2 stopsUnited Airlines
18h 28mIDA-SEA
2/26Wed
2 stopsUnited Airlines
17h 36mSEA-IDA
$520

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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.
4/14Mon
nonstopAllegiant Air
1h 40mIDA-PDX
$48
3/11Tue
nonstopAlaska Airlines
1h 53mIDA-SEA
$79
3/11Tue
1 stopDelta
6h 14mIDA-SEA
$89
2/15Sat
1 stopDelta
4h 22mIDA-SEA
$129
2/4Tue
nonstopAlaska Airlines
2h 10mIDA-SEA
$149
3/11Tue
nonstopAlaska Airlines
1h 53mIDA-SEA
$154
2/4Tue
1 stopDelta
4h 30mIDA-SEA
$159
4/14Mon
1 stopAlaska Airlines
3h 52mIDA-PDX
$171
3/11Tue
3 stopsUnited Airlines
29h 09mIDA-SEA
$248
3/11Tue
2 stopsUnited Airlines
19h 02mIDA-SEA
$249

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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.
1/24Fri
nonstop
1h 54mIDA-PDX
1/26Sun
multi-stop
23h 12mPDX-IDA
$392
1/24Fri
nonstopAlaska Airlines
2h 10mIDA-SEA
1/31Fri
nonstopAlaska Airlines
1h 38mSEA-IDA
$528
1/24Fri
multi-stopDelta
4h 30mIDA-SEA
1/31Fri
multi-stopDelta
4h 39mSEA-IDA
$593
1/24Fri
multi-stopDelta
4h 30mIDA-SEA
1/31Fri
multi-stopDelta
6h 14mSEA-IDA
$759
1/24Fri
multi-stopAlaska Airlines
6h 17mIDA-PSC
1/26Sun
multi-stopAlaska Airlines
5h 27mPSC-IDA
$818
1/24Fri
multi-stopAlaska Airlines
5h 35mIDA-PDX
1/26Sun
multi-stopAlaska Airlines
5h 03mPDX-IDA
$826
1/24Fri
multi-stopAlaska Airlines
5h 43mIDA-GEG
1/26Sun
multi-stopAlaska Airlines
3h 45mGEG-IDA
$860
1/24Fri
multi-stopUnited Airlines
26h 12mIDA-PDX
1/26Sun
multi-stopUnited Airlines
29h 16mPDX-IDA
$920
1/24Fri
multi-stopDelta
6h 13mIDA-SEA
1/31Fri
multi-stopDelta
6h 14mSEA-IDA
$1,053
1/24Fri
multi-stopUnited Airlines
30h 40mIDA-GEG
1/26Sun
multi-stopUnited Airlines
27h 48mGEG-IDA
$1,174

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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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