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SEA - IDA

$169 Find cheap flights from Seattle to Idaho Falls

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Idaho Falls departing on 5/29. 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
Sat 6/15
Sat 6/22

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 42,211,976 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
12:40 pm - 3:22 pmSEA-IDA
1h 42mnonstop
4:02 pm - 4:58 pmIDA-SEA
1h 56mnonstop
$322Alaska Airlines
Find Deal
Wed, Aug 7 - Sun, Aug 11
9:15 pm - 11:57 pmSEA-IDA
1h 42mnonstop
6:00 am - 6:49 amIDA-SEA
1h 49mnonstop
$337Alaska Airlines
Find Deal
Thu, May 30 - Mon, Jun 3
12:11 pm - 2:52 pmSEA-IDA
1h 41mnonstop
3:32 pm - 4:28 pmIDA-SEA
1h 56mnonstop
$352Alaska Airlines
Find Deal
Fri, May 31 - Tue, Jun 4
5:30 am - 12:28 pmSEA-IDA
5h 58m1 stop
7:00 pm - 10:21 pmIDA-SEA
4h 21m1 stop
$356Delta
Find Deal
Fri, May 31 - Mon, Jun 3
5:30 am - 12:28 pmSEA-IDA
5h 58m1 stop
7:00 pm - 10:21 pmIDA-SEA
4h 21m1 stop
$387Delta
Find Deal
Wed, May 29 - Thu, May 30
9:15 pm - 11:57 pmSEA-IDA
1h 42mnonstop
3:32 pm - 4:28 pmIDA-SEA
1h 56mnonstop
$397Alaska Airlines
Find Deal
Sun, May 26 - Tue, Jun 4
6:15 am - 9:08 pmSEA-IDA
13h 53m2 stops
5:58 pm - 8:02 amIDA-SEA
15h 04m1 stop
$600United Airlines
Find Deal
Sat, Jul 6 - Sun, Jul 14
3:35 pm - 9:40 amSEA-IDA
17h 05m1 stop
5:56 pm - 8:02 amIDA-SEA
15h 06m1 stop
$606United Airlines
Find Deal
Wed, Jun 19 - Sun, Jun 23
8:40 am - 11:35 amSEA-IDA
25h 55m2 stops
12:05 pm - 8:50 pmIDA-SEA
9h 45m2 stops
$949American Airlines
Find Deal
Wed, May 29 - Sat, Jun 1
8:40 am - 11:35 amSEA-IDA
25h 55m2 stops
12:05 pm - 8:50 pmIDA-SEA
9h 45m2 stops
$979American Airlines
Find Deal
Tue, May 28 - Fri, May 31

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 June and August, where the average cost of tickets is $431 and $418 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 $169. Alaska Airlines proposed a round-trip connection from $322 and Delta from $356.

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

$169
Best time to beat the crowds but there is an average 6% 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 $169 for a one-way ticket and $322 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 $506 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 $133 or less one-way and $262 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 9157 reviews
7.3Food
8.6Crew
7.3Entertainment
7.9Comfort
8.2Boarding
Airline reviews

Why do you ask about food when only a snack is served? Actual food needs to be bought.

8.0 ExcellentAnonymous, May 2024SEA - PHL
Read more about Alaska Airlines reviews

Why do you ask about food when only a snack is served? Actual food needs to be bought.

There was an older male crew member that was very rude to me when doing the last checks before pulling back from the terminal. There is a polite way to tell someone to put their bag under the seat. It was Mother’s Day and my mom has recently passed so it was a tough morning for me in general. There was no need to make for the snide remark “ I don’t know how many times we have said this already” as you walked away. I had held it together all morning and this interaction brought me to tears. love Alaska Airlines and this is the first time I’ve had a negative experience.

Alway a a breeze! And great mountain views on left side of plane during entire flight!

another delayed flight. no one at the desk kept us updated. we found out by an email as the desk was not even staffed up to expected takes off

They canceled my flight going back to SF after I was at the airport. Wanted me to take a flight 14 hours later. Not a happy camper.

Service was excellent. Staff at check in cleared hurdles for me so I could travel with my service animal.

Flight cancelled an hour before takeoff due to "unscheduled maintenance". New flight makes me have to wait for 5 hours in the airport, at a gate totally on the other side of where I'm at, requiring me to take a tram to get from the N terminal, to the C terminal. After waiting for 5 hours I'm informed my new flight is no longer at the gate I'm at, but instead is back in the N terminal where I was previously.

Delayed an hour and sat without updates. Ended up an hour late to destination

The flight was decent again if there was a place that you could put crying children that would be great. Or maybe make a rule against allowing infants on the plane.

Everything was fine -- on time, clear, clean. I don't want to pay extra for in-flight wi-fi

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.
5/29Wed
nonstopAlaska Airlines
1h 42mSEA-IDA
$169
5/29Wed
1 stopDelta
5h 58mSEA-IDA
$209
5/22Wed
nonstopAlaska Airlines
1h 41mSEA-IDA
$229
5/25Sat
1 stopDelta
3h 49mSEA-IDA
$238
5/24Fri
nonstopAlaska Airlines
1h 42mSEA-IDA
$269
5/22Wed
1 stopDelta
4h 08mSEA-IDA
$289
5/29Wed
2 stopsUnited Airlines
17h 10mSEA-IDA
$353
6/17Mon
2 stopsUnited Airlines
28h 38mSEA-IDA
$354
5/27Mon
2 stopsAmerican Airlines
27h 35mSEA-IDA
$494
5/26Sun
1 stopAmerican Airlines
10h 29mSEA-IDA
$718

Search by stops

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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.
5/18Sat
nonstopAlaska Airlines
1h 42mSEA-IDA
5/25Sat
nonstopAlaska Airlines
1h 49mIDA-SEA
$527
5/17Fri
nonstopAlaska Airlines
1h 42mSEA-IDA
5/19Sun
nonstopAlaska Airlines
1h 49mIDA-SEA
$597
5/18Sat
multi-stopDelta
4h 08mSEA-IDA
5/25Sat
multi-stopDelta
4h 53mIDA-SEA
$751
5/17Fri
multi-stopDelta
3h 49mSEA-IDA
5/19Sun
multi-stopDelta
4h 21mIDA-SEA
$786
5/18Sat
multi-stopUnited Airlines
16h 24mSEA-IDA
5/25Sat
multi-stopUnited Airlines
16h 01mIDA-SEA
$860
5/18Sat
multi-stopUnited Airlines
17h 53mSEA-IDA
5/25Sat
multi-stopUnited Airlines
16h 01mIDA-SEA
$865
5/18Sat
multi-stopUnited Airlines
12h 52mSEA-IDA
5/25Sat
multi-stopUnited Airlines
18h 27mIDA-SEA
$890
5/17Fri
multi-stopUnited Airlines
13h 33mSEA-IDA
5/19Sun
multi-stopUnited Airlines
17h 02mIDA-SEA
$960
5/17Fri
multi-stopAmerican Airlines
22h 07mSEA-IDA
5/19Sun
multi-stopAmerican Airlines
9h 45mIDA-SEA
$1,327
5/17Fri
multi-stopAmerican Airlines
10h 29mSEA-IDA
5/25Sat
multi-stopAmerican Airlines
14h 50mIDA-SEA
$1,961

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Seattle - Idaho Falls Flights

Departure:

Seattle (undefined)United States

Destination:

Idaho Falls (IDA)United States

Return flight deals:

Idaho Falls - Seattle

Cabin classes:

$656
$125