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Cheap flights from Seattle to Idaho Falls from $99

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Idaho Falls departing on 1/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Seattle to Idaho Falls

Cheap round-trip flights

These are some of the best round-trip flight deals from Seattle to Idaho Falls that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Seattle to Idaho Falls.

Cheap last minute flights

Planning a quick getaway from Seattle to Idaho Falls? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Idaho Falls, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Seattle to Idaho Falls

Find recent round-trip train or bus tickets from Seattle to Idaho Falls.

All round-trip flight deals to Idaho Falls

The cheapest plane tickets to Idaho Falls found on KAYAK recently.
7:55 pm - 10:33 pmSEA-IDA
1h 38mnonstop
4:04 pm - 4:56 pmIDA-SEA
1h 52mnonstop
$177Alaska Airlines
Find Deal
Thu, Jan 16 - Wed, Jan 22
12:51 pm - 3:27 pmSEA-IDA
1h 36mnonstop
4:04 pm - 4:56 pmIDA-SEA
1h 52mnonstop
$186Alaska Airlines
Find Deal
Thu, Jan 9 - Sun, Jan 12
12:51 pm - 3:27 pmSEA-IDA
1h 36mnonstop
4:04 pm - 4:56 pmIDA-SEA
1h 52mnonstop
$197Alaska Airlines
Find Deal
Thu, Jan 9 - Sun, Jan 12
1:30 pm - 6:17 pmSEA-IDA
3h 47m1 stop
6:57 pm - 12:50 amIDA-SEA
6h 53m1 stop
$216Delta
Find Deal
Thu, Jan 9 - Sun, Jan 12
5:30 am - 12:30 pmSEA-IDA
6h 00m1 stop
6:57 pm - 12:50 amIDA-SEA
6h 53m1 stop
$276Delta
Find Deal
Thu, Jan 16 - Wed, Jan 22
5:05 pm - 10:44 pmSEA-IDA
4h 39m1 stop
6:00 am - 9:22 amIDA-SEA
4h 22m1 stop
$297Delta
Find Deal
Sat, Feb 1 - Sat, Feb 8
5:00 am - 3:18 pmSEA-IDA
9h 18m1 stop
4:20 pm - 11:20 amIDA-SEA
20h 00m2 stops
$502United Airlines
Find Deal
Sat, Feb 1 - Sat, Feb 8
5:00 am - 9:52 amSEA-IDA
27h 52m1 stop
5:50 pm - 11:20 amIDA-SEA
18h 30m2 stops
$506United Airlines
Find Deal
Thu, Jan 23 - Sun, Jan 26
6:11 am - 8:07 amSEA-IDA
24h 56m3 stops
4:28 pm - 1:11 pmIDA-SEA
21h 43m2 stops
$1,040
Find Deal
Sat, Dec 28 - Fri, Jan 3
6:11 am - 8:07 amSEA-IDA
24h 56m3 stops
4:28 pm - 12:10 amIDA-SEA
32h 42m3 stops
$1,156
Find Deal
Sat, Dec 28 - Fri, Jan 3
12:51 pm - 3:27 pmSEA-IDA
1h 36mnonstop
$99Alaska Airlines
Find Deal
Mon, Jan 20
5:05 pm - 10:44 pmSEA-IDA
4h 39m1 stop
$146Delta
Find Deal
Mon, Feb 3
12:51 pm - 3:27 pmSEA-IDA
1h 36mnonstop
$174Alaska Airlines
Find Deal
Mon, Feb 3
9:15 pm - 11:59 pmSEA-IDA
1h 44mnonstop
$199Alaska Airlines
Find Deal
Fri, Dec 27
5:05 pm - 10:26 pmSEA-IDA
4h 21m1 stop
$238Delta
Find Deal
Thu, Dec 26
7:00 am - 3:20 pmSEA-IDA
31h 20m2 stops
$267United Airlines
Find Deal
Mon, Feb 3
1:30 pm - 6:17 pmSEA-IDA
3h 47m1 stop
$268Delta
Find Deal
Mon, Jan 20
12:50 pm - 9:52 amSEA-IDA
20h 02m2 stops
$279United Airlines
Find Deal
Mon, Jan 20
5:05 pm - 10:26 pmSEA-IDA
4h 21m1 stop
$318Delta
Find Deal
Fri, Dec 27
9:20 am - 1:21 pmSEA-IDA
27h 01m3 stops
$324United Airlines
Find Deal
Mon, Feb 3
12:19 pm - 2:56 pmSEA-IDA
1h 37mnonstop
3:34 pm - 4:31 pmIDA-SEA
1h 57mnonstop
$558Alaska Airlines
Find Deal
Sat, Dec 21 - Mon, Dec 23
7:10 pm - 9:07 pmSEA-IDA
24h 57m1 stop
10:49 am - 11:17 pmIDA-SEA
13h 28m1 stop
$1,005United Airlines
Find Deal
Sat, Dec 21 - Mon, Dec 23
7:10 pm - 9:07 pmSEA-IDA
24h 57m1 stop
7:00 am - 9:15 pmIDA-SEA
15h 15m2 stops
$1,050United Airlines
Find Deal
Sat, Dec 21 - Mon, Dec 23
7:10 pm - 9:07 pmSEA-IDA
24h 57m1 stop
7:00 am - 11:50 pmIDA-SEA
17h 50m3 stops
$1,095United Airlines
Find Deal
Sat, Dec 21 - Mon, Dec 23
2:00 pm - 9:51 amSEA-IDA
18h 51m2 stops
7:00 am - 11:50 pmIDA-SEA
17h 50m3 stops
$1,230United Airlines
Find Deal
Sat, Dec 21 - Mon, Dec 23
7:55 pm - 10:33 pmSEA-IDA
1h 38mnonstop
4:04 pm - 4:56 pmIDA-SEA
1h 52mnonstop
$177Alaska Airlines
Find Deal
Thu, Jan 16 - Wed, Jan 22
12:51 pm - 3:27 pmSEA-IDA
1h 36mnonstop
4:04 pm - 4:56 pmIDA-SEA
1h 52mnonstop
$186Alaska Airlines
Find Deal
Thu, Jan 9 - Sun, Jan 12
12:51 pm - 3:27 pmSEA-IDA
1h 36mnonstop
4:04 pm - 4:56 pmIDA-SEA
1h 52mnonstop
$197Alaska Airlines
Find Deal
Thu, Jan 9 - Sun, Jan 12
9:15 pm - 11:59 pmSEA-IDA
1h 44mnonstop
6:00 am - 7:17 amIDA-SEA
2h 17mnonstop
$318Alaska Airlines
Find Deal
Tue, Dec 31 - Fri, Jan 3
7:55 pm - 10:33 pmSEA-IDA
1h 38mnonstop
4:04 pm - 4:56 pmIDA-SEA
1h 52mnonstop
$347Alaska Airlines
Find Deal
Thu, Jan 23 - Sun, Jan 26
12:19 pm - 2:56 pmSEA-IDA
1h 37mnonstop
3:34 pm - 4:31 pmIDA-SEA
1h 57mnonstop
$378Alaska Airlines
Find Deal
Sat, Dec 28 - Sun, Jan 5
12:51 pm - 3:27 pmSEA-IDA
1h 36mnonstop
4:04 pm - 4:56 pmIDA-SEA
1h 52mnonstop
$401Alaska Airlines
Find Deal
Sat, Feb 1 - Sat, Feb 8
9:15 pm - 11:59 pmSEA-IDA
1h 44mnonstop
3:34 pm - 4:31 pmIDA-SEA
1h 57mnonstop
$418Alaska Airlines
Find Deal
Sat, Dec 28 - Sat, Jan 4

Delta flights from Seattle to Idaho Falls

Our best Delta deals on Seattle to Idaho Falls flight tickets
Delta
Jan 9
SEA1:30 pmSeattle/Tacoma Intl
3h 47m
1 stop
IDA6:17 pmIdaho Falls Fanning Field
Jan 12
IDA6:57 pmIdaho Falls Fanning Field
6h 53m
1 stop
SEA12:50 amSeattle/Tacoma Intl
Delta
Jan 16
SEA5:30 amSeattle/Tacoma Intl
6h 00m
1 stop
IDA12:30 pmIdaho Falls Fanning Field
Jan 22
IDA6:57 pmIdaho Falls Fanning Field
6h 53m
1 stop
SEA12:50 amSeattle/Tacoma Intl
Delta
Feb 1
SEA5:05 pmSeattle/Tacoma Intl
4h 39m
1 stop
IDA10:44 pmIdaho Falls Fanning Field
Feb 8
IDA6:00 amIdaho Falls Fanning Field
4h 22m
1 stop
SEA9:22 amSeattle/Tacoma Intl

Alaska Airlines flights from Seattle to Idaho Falls

Our best Alaska Airlines deals on Seattle to Idaho Falls flight tickets
Alaska Airlines
Jan 16
SEA7:55 pmSeattle/Tacoma Intl
1h 38m
IDA10:33 pmIdaho Falls Fanning Field
Jan 22
IDA4:04 pmIdaho Falls Fanning Field
1h 52m
SEA4:56 pmSeattle/Tacoma Intl
Alaska Airlines
Jan 9
SEA12:51 pmSeattle/Tacoma Intl
1h 36m
IDA3:27 pmIdaho Falls Fanning Field
Jan 12
IDA4:04 pmIdaho Falls Fanning Field
1h 52m
SEA4:56 pmSeattle/Tacoma Intl
Alaska Airlines
Jan 9
SEA12:51 pmSeattle/Tacoma Intl
1h 36m
IDA3:27 pmIdaho Falls Fanning Field
Jan 12
IDA4:04 pmIdaho Falls Fanning Field
1h 52m
SEA4:56 pmSeattle/Tacoma Intl

See travel insights to Idaho Falls from

How to get the cheapest flight ticket from Seattle to Idaho Falls

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Idaho Falls?

If you aren’t able to travel to Idaho Falls during the month of March, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $262.

What is the cheapest day to depart on your flight to Idaho Falls?

Our data shows that Wednesday is the least expensive day to fly to Idaho Falls. Tickets to fly out on this day can be as low as $297. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Idaho Falls on Sunday is $431.

What is the cheapest time of day to depart on your flight to Idaho Falls?

Our most recent data shows that the best time of day to fly to Idaho Falls is in the afternoon. Flights from Seattle to Idaho Falls during this time can be as low as $239. Try not to purchase tickets in the morning because they tend to be around $326. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Seattle/Tacoma Intl to Idaho Falls Fanning Field flight route?

Fly from Seattle/Tacoma Intl to Idaho Falls Fanning Field for the best Seattle/Tacoma Intl - Idaho Falls Fanning Field flight prices

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

You are more likely to see cheaper flights to Idaho Falls from Seattle when booking 55 days ahead of your departure date. In general, you can expect to find flights to Idaho Falls for around $319 when searching 55 days out. However, in the past 72 hours, people saw flights from Seattle for as low as $211.

What cabin class options are available on Seattle/Tacoma Intl to Idaho Falls Fanning Field flights?

There are 3 cabin classes available to choose from on Seattle/Tacoma Intl to Idaho Falls Fanning Field flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Seattle to Idaho Falls flights?

You could potentially save up to 47% on your flight if you consider stops on a Seattle to Idaho Falls flight.

How have Seattle to Idaho Falls flight prices changed over time?

As of December 2024, prices for Seattle to Idaho Falls flights are approximately 3% more expensive when compared to flights at the same time last year.

When to book flights from Seattle to Idaho Falls

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Idaho Falls according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Idaho Falls (SEA to IDA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Idaho Falls

Best Price Found

$99

Fastest flight time

1h 36m

Direct flights

Tue, Wed, Fri, Sat and Sun

Airports in Idaho Falls

1 airport
The best one-way flight to Idaho Falls from Seattle in the past 72 hours is $99. The best round-trip flight deal from Seattle to Idaho Falls found on momondo in the last 72 hours is $177.
The fastest flight from Seattle to Idaho Falls takes 1h 36m
Direct flights go from Seattle to Idaho Falls on Tuesday, Wednesday, Friday, Saturday and Sunday. The only airline offering direct flights is Alaska Airlines.
There is 1 airport near Idaho Falls: Idaho Falls Fanning Field (IDA)

  • How far is Seattle/Tacoma Intl to Idaho Falls Fanning Field by plane?

    There are 574.1 mi between Seattle/Tacoma Intl and Idaho Falls Fanning Field. Flights usually cover this in 1h 36m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Idaho Falls Fanning Field Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Idaho Falls Fanning Field Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Idaho Falls Fanning Field Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Idaho Falls Fanning Field Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Idaho Falls Fanning Field Airport.

  • What documentation or ID do you need to fly to Idaho Falls Fanning Field Airport?

    The travel and health documents you'll need for your trip to Idaho Falls Fanning Field Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Idaho Falls Fanning Field Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Seattle to Idaho Falls?

  • What is the most popular airline from Seattle to Idaho Falls?


Best airlines flying from Seattle to Idaho Falls

Compare and see reviews for airlines that fly from Seattle to Idaho Falls with momondo
Airline
Rating
Free Cancellation
Price
Alaska AirlinesPriceFrom $187Free CancellationRating
8.0
9,554 reviews
Search Alaska Airlines flights
DeltaPriceFrom $211Free CancellationRating
8.0
8,604 reviews
Search Delta flights
  • Alaska Airlines Flights From Seattle to Idaho Falls

    Alaska Airlines flight deals from Seattle to Idaho Falls start from $187 round-trip. Over the 4 Alaska Airlines flights for this route in a normal week, average airfare is usually $305 round-trip - but some users have found much cheaper deals with momondo.


Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Idaho Falls?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seattle to Idaho Falls. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Seattle to Idaho Falls with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Seattle to Idaho Falls flights to just show those with flexible booking policies.

How can momondo help me find flights from Seattle to Idaho Falls?

Once all potential Seattle to Idaho Falls flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Seattle to Idaho Falls right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Seattle to Idaho Falls now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Idaho Falls and let you know when they change.


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