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SEA - IDA

$157 Find cheap flights from Seattle to Idaho Falls

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Idaho Falls departing on 8/20. 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
Mon 7/1
Mon 7/8

Search hundreds of travel sites at once for deals on flights to Idaho Falls

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Idaho Falls, 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 Seattle to Idaho Falls, as well as popular online travel agencies
In the last 7 days travelers have searched 42,335,261 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

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Cheap flight deals from Seattle to Idaho Falls (SEA-IDA)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Idaho Falls 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 and deals for you by selecting your travel dates.
Choose your dates
9:15 pm - 11:54 pmSEA-IDA
1h 39mnonstop
6:06 am - 7:00 amIDA-SEA
1h 54mnonstop
$157Alaska Airlines
Find Deal
Tue, Aug 20 - Sat, Aug 24
5:15 pm - 10:01 pmSEA-IDA
3h 46m1 stop
7:00 pm - 11:59 pmIDA-SEA
5h 59m1 stop
$196Delta
Find Deal
Sat, Sep 28 - Wed, Oct 2
6:39 pm - 10:53 amSEA-IDA
15h 14m1 stop
12:48 pm - 10:03 amIDA-SEA
22h 15m2 stops
Thu, Aug 22 - Sun, Aug 25
9:15 pm - 11:57 pmSEA-IDA
1h 42mnonstop
4:02 pm - 4:58 pmIDA-SEA
1h 56mnonstop
$307Alaska Airlines
Find Deal
Mon, Jul 8 - Fri, Jul 12
5:30 am - 10:53 amSEA-IDA
28h 23m2 stops
12:48 pm - 10:03 amIDA-SEA
22h 15m2 stops
Thu, Aug 22 - Sun, Aug 25
5:40 am - 12:20 pmSEA-IDA
5h 40m1 stop
7:00 pm - 11:59 pmIDA-SEA
5h 59m1 stop
$327Delta
Find Deal
Sun, Sep 29 - Thu, Oct 3
6:35 pm - 1:28 pmSEA-IDA
17h 53m1 stop
5:59 pm - 1:06 pmIDA-SEA
20h 07m2 stops
$520United Airlines
Find Deal
Thu, Aug 15 - Sun, Aug 18
3:35 pm - 9:35 amSEA-IDA
17h 00m2 stops
5:59 pm - 1:06 pmIDA-SEA
20h 07m2 stops
$525United Airlines
Find Deal
Thu, Aug 15 - Sun, Aug 18
10:52 pm - 9:39 pmSEA-IDA
21h 47m2 stops
6:30 am - 9:35 pmIDA-SEA
16h 05m2 stops
$1,044American Airlines
Find Deal
Thu, Aug 1 - Sun, Aug 4
8:30 am - 9:43 pmSEA-IDA
12h 13m2 stops
6:32 am - 9:57 pmIDA-SEA
16h 25m2 stops
$1,088American Airlines
Find Deal
Wed, Jun 19 - Sat, Jun 22

Flights from Seattle to Idaho Falls - Travel Insights & Trends

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

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

The average price of all flights from Seattle to Idaho Falls clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Seattle to Idaho Falls, look for departures on Wednesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Idaho Falls, Tuesday is the cheapest day to fly and Monday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Seattle to Idaho Falls, 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 Seattle to Idaho Falls is March, where tickets cost $262 on average. On the other hand, the most expensive months are August and June, where the average cost of tickets is $413 and $404 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Seattle to Idaho Falls, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Seattle to Idaho Falls, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 52 days before departure.

Which airlines provide the cheapest flights from Seattle to Idaho Falls?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the cheapest one-way ticket from Seattle to Idaho Falls found on KAYAK was with Alaska Airlines for $174. Alaska Airlines proposed a round-trip connection from $157 and Delta from $196.

Which airlines fly non-stop between Seattle and Idaho Falls?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Seattle to Idaho Falls.
There is just one airline that flies from Seattle to Idaho Falls direct and that is Alaska Airlines. The best one-way deal found from Alaska Airlines for the route is $149.

How many flights are there between Seattle and Idaho Falls per day?

Each day, there are 3 nonstop flights that take off from Seattle and land in Idaho Falls, with an average flight time of 1h 41m. The most common departure time is 9:00 pm and most flights take off in the evening. Each week, there are 21 flights and there are the same amount of flights each day 3.

Which cabin class options are there for flights between Seattle and Idaho Falls?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There is only one cabin class option available for the route, which is Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Seattle to Idaho Falls take?

The duration of a nonstop flight to Idaho Falls from Seattle is typically 1h 39m. The journey crosses a distance of 565 miles.

What’s the earliest departure time from Seattle to Idaho Falls?

Early birds can take the earliest flight from Seattle at 12:11 pm and will be landing in Idaho Falls at 2:52 pm.

What’s the latest departure time from Seattle to Idaho Falls?

If you prefer to fly at night, the latest flight from Seattle to Idaho Falls jets off at 9:15 pm and lands at 11:57 pm.

Good to know

Low season

January

High season

April

Cheapest flight

$157
Best time to beat the crowds but there is an average 7% increase in price.
Most popular time to fly and prices are also 21% lower on average.
Flight from Seattle to Idaho Falls

When to book flights from Seattle to Idaho Falls

Are your dates flexible? Find out the best times to travel from Seattle to Idaho Falls based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Idaho Falls

  • What is the cheapest flight from Seattle to Idaho Falls?

    In the last 3 days, the lowest price for a flight from Seattle to Idaho Falls was $174 for a one-way ticket and $157 for a round-trip.

  • Do I need a passport to fly between Seattle and Idaho Falls?

    No

  • Which airlines offer Wi-Fi service onboard planes from Seattle to Idaho Falls?

    Only Alaska Airlines offers inflight Wi-Fi service on the Seattle to Idaho Falls flight route.

  • Which aircraft models fly most regularly from Seattle to Idaho Falls?

    The Embraer 175 is the aircraft model that flies most regularly on the Seattle to Idaho Falls flight route.

  • Which airline alliances offer flights from Seattle to Idaho Falls?

    oneworld is the only airline alliance operating flights between Seattle and Idaho Falls.

  • On which days can I fly direct from Seattle to Idaho Falls?

    There are nonstop flights from Seattle to Idaho Falls on a daily basis.

  • Which is the best airline for flights from Seattle to Idaho Falls, Alaska Airlines or Delta?

    The two airlines most popular with KAYAK users for flights from Seattle to Idaho Falls are Alaska Airlines and Delta. With an average price for the route of $298 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $531 and an overall rating of 8.0.

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

    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 Seattle to Idaho Falls.

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

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

    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 to Idaho Falls with an airline and back to Seattle with another airline. Booking your flights between Seattle and IDA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Idaho Falls?

    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 to Idaho Falls from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from Seattle to Idaho Falls

  • Looking for a cheap flight? 25% of our users found flights on this route for $162 or less one-way and $271 or less round-trip.

Prefer to fly non-stop from Seattle to Idaho Falls?

Find which airlines fly direct from Seattle/Tacoma Intl to Fanning Field, which days they fly and book direct flights.

Nonstop departures

Seattle/Tacoma Intl to Idaho Falls Fanning Field

Monday

Alaska Airlines, Qatar Airways

Alaska Airlines, Qatar Airways

Tuesday

Alaska Airlines, Finnair, Qatar Airways

Alaska Airlines, Finnair, +1 more

Wednesday

Alaska Airlines, Qatar Airways

Alaska Airlines, Qatar Airways

Thursday

Alaska Airlines, Finnair, Qatar Airways

Alaska Airlines, Finnair, +1 more

Friday

Alaska Airlines, Qatar Airways

Alaska Airlines, Qatar Airways

Saturday

Alaska Airlines, Finnair, Qatar Airways

Alaska Airlines, Finnair, +1 more

Sunday

Alaska Airlines, Qatar Airways

Alaska Airlines, Qatar Airways

See more direct flights

Nonstop returns

Idaho Falls Fanning Field to Seattle/Tacoma Intl

Monday

Alaska Airlines, Qatar Airways

Alaska Airlines, Qatar Airways

Tuesday

Alaska Airlines, Finnair, Qatar Airways

Alaska Airlines, Finnair, +1 more

Wednesday

Alaska Airlines, Qatar Airways

Alaska Airlines, Qatar Airways

Thursday

Alaska Airlines, Finnair, Qatar Airways

Alaska Airlines, Finnair, +1 more

Friday

Alaska Airlines, Qatar Airways

Alaska Airlines, Qatar Airways

Saturday

Alaska Airlines, Finnair, Qatar Airways

Alaska Airlines, Finnair, +1 more

Sunday

Alaska Airlines, Qatar Airways

Alaska Airlines, Qatar Airways

See more direct flights
See more direct flights

Top airlines flying from Seattle to Idaho Falls

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Idaho Falls. 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 Seattle to Idaho Falls? 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 9197 reviews
8.6Crew
7.3Entertainment
7.3Food
8.2Boarding
7.9Comfort
Airline reviews

Offer snacks/meals for people with food sensitivities. HAVE TV SCREENS!

6.0 GoodAnonymous, May 2024SEA - IAD
Read more about Alaska Airlines reviews

Offer snacks/meals for people with food sensitivities. HAVE TV SCREENS!

Cabin crew very friendly and pleasant. Flight left late but we didn't know why. Alaska Airlines app was not user friendly -- app wouldn't let us upgrade our seats, but no indication if flight was full. We wound up having to call the airline to request an upgrade and we were told none was available. Waste of time. Baggage retrieval was easy.

The boarding gate is literally just an aisle to the concourse. There is no seating and it's shared with several other airlines. It's crowded, hot, and standing-room only. It's difficult to hear gate announcements over the PA system with too many other carriers crammed into a small space. I've enjoyed flying AA in the past on the west coast, but the BNA single gate experience is horrendous! Never again from BNA to SEA with AA.

It was a partial full flight. But even with a spare seat it was hard to get comfortable More on me being a wide body probably

Our flights using Alaska Airlines went great! All of the flight attendants were very friendly. Big shout out to the pilots for getting us to and from our destinations safely!

I can’t complain. Perhaps passing out headphones, but it was on me to bring my own since I could have used some for my personal device.

I liked only the crew. The flyght was too much fast, faster than it should be, on 20 min faster, but not safer, I experienced on myself astranautic overload from suddenly appearing in the sky and all the vibrations of the turbines, because I had my place at the level of the wings. Pregnant woman should not be seated on the level of the wings with all turbines, pregnant woman should be offered to charge place to seat closer to front or in the back, but not at the level of all the turbines. Vibrations of turbines are not healthy for pregnancy. I hold all the flight my belly in my hands to avoid miscarriage. If it would be longer flying distances, I could have miscarriage with Alaskan airlines.

I didn't have food or use entertainment, so those evaluations are invalid.

I do not feel the priority seating I paid for was was adequate for the cost. there was no difference from coach on any other airline, and it was very uncomfortable

First flights on Alaska Air, and I will go out of my way to fly them whenever I can in the future. An incredible experience, above and beyond any other airline.

The plane from SNA wouldn’t start after 5 tries. The team gave me an option of flying direct from LAX and giving me a Lyft ride there! Perfect!

Had a broken tray in business class. Crew just shrugged it off.

Everything was great except for the seat. The backrest would not stay in the upright position.

public website still broken for years randomly blocking browsers with privacy options active after loading a page maybe once. check-in on laptop was almost impossible but eventually randomly worked. had to print pass at airport since couldn't get back in to load digital pass on mobile firefox or chrome. red eye flight so smooth onboarding, plenty of room to spread out, easy offboarding. onboard wifi instructions mention vpn can cause problems connecting but fails to also mention private dns. no printed or built in menu list, seems weird to require personal device to point at qr code link for menu which does not even allow direct ordering. people with health condition risk related dietary restrictions trying to avoid for example cholesterol and sugar are left guessing what they can order either way without nutritional info highlights (cranberry juice was minute maid cocktail with as much suger as typical can of soda). tap to pay wasn't working and always seems sketchy to manually enter card info. good movie variety, so limited tv was okay.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Flight diverted in SD. Later take off in Seattle by 1.3hrs

Mi primera conexión se retrasó por lo cual perdí mi segunda conexión la cual salió adelantada

Crew was not friendly when I went to request a seat change.

There were choices for the snacks. Good choices and tasty lunch and breakfast as well.

The flight crew was amazing. I’m very tall and they moved me to an exit row unsolicited!!! Amazing service.

Book cheap flights from Seattle to Idaho Falls

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Seattle to Idaho Falls found on KAYAK in the last 72 hours.
6/22Sat
nonstopAlaska Airlines
1h 42mSEA-IDA
$174
7/3Wed
1 stopDelta
5h 53mSEA-IDA
$203
7/3Wed
nonstopAlaska Airlines
1h 42mSEA-IDA
$369
6/22Sat
1 stopUnited Airlines
27h 35mSEA-IDA
$393
6/22Sat
2 stopsUnited Airlines
16h 15mSEA-IDA
$482
6/22Sat
2 stopsAmerican Airlines
15h 33mSEA-IDA
$519
7/2Tue
1 stopAmerican Airlines
10h 59mSEA-IDA
$713
6/21Fri
1 stopAmerican Airlines
19h 29mSEA-IDA
$738
7/2Tue
2 stopsUnited Airlines
19h 38mSEA-IDA
$887

Search by stops

Search by airline

Search by price

Last minute flights from Seattle to Idaho Falls

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 Seattle to Idaho Falls that are departing in the next 10 days.
6/3Mon
multi-stopDelta
4h 08mSEA-IDA
6/7Fri
multi-stopDelta
5h 59mIDA-SEA
$657
6/3Mon
nonstopAlaska Airlines
1h 41mSEA-IDA
6/7Fri
nonstopAlaska Airlines
1h 49mIDA-SEA
$732
6/3Mon
multi-stop
10h 26mSEA-IDA
6/7Fri
multi-stop
10h 52mIDA-SEA
$746
6/3Mon
multi-stop
10h 26mSEA-IDA
6/7Fri
multi-stop
13h 40mIDA-SEA
$772
6/3Mon
nonstopAlaska Airlines
1h 41mSEA-IDA
6/7Fri
nonstopAlaska Airlines
1h 49mIDA-SEA
$822
6/3Mon
multi-stop
10h 26mSEA-IDA
6/7Fri
multi-stop
37h 45mIDA-SEA
$840
6/3Mon
multi-stopUnited Airlines
17h 10mSEA-IDA
6/7Fri
multi-stopUnited Airlines
15h 01mIDA-SEA
$885
6/3Mon
multi-stopUnited Airlines
10h 00mSEA-IDA
6/7Fri
multi-stopUnited Airlines
12h 30mIDA-SEA
$1,154
6/2Sun
multi-stopAmerican Airlines
10h 29mSEA-IDA
6/7Fri
multi-stopAmerican Airlines
11h 28mIDA-SEA
$1,564
6/2Sun
multi-stopAmerican Airlines
10h 29mSEA-IDA
6/7Fri
multi-stopAmerican Airlines
11h 27mIDA-SEA
$1,569

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Seattle - Idaho Falls Flights

Departure:

Seattle (SEA)United States

Destination:

Idaho Falls (IDA)United States

Return flight deals:

Idaho Falls - Seattle

Cabin classes:

$656
$262