Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Seattle to Idaho Falls from $109

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 11/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Seattle to Idaho Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
Hawaiian Airlines Logo
9:15 pm - 11:59 pmSEA-IDA
1h 44mnonstop
Hawaiian Airlines Logo
5:05 am - 6:14 amIDA-SEA
2h 09mnonstop
$171Hawaiian Airlines
Find Deal
jue., oct. 30 - dom., nov. 2
Alaska Airlines Logo
9:15 pm - 11:59 pmSEA-IDA
1h 44mnonstop
Alaska Airlines Logo
6:00 am - 7:20 amIDA-SEA
2h 20mnonstop
$174Alaska Airlines
Find Deal
mié., dic. 17 - mar., ene. 6
Alaska Airlines Logo
9:15 pm - 11:59 pmSEA-IDA
1h 44mnonstop
Alaska Airlines Logo
5:05 am - 6:14 amIDA-SEA
2h 09mnonstop
$177Alaska Airlines
Find Deal
mié., oct. 29 - dom., nov. 2
Delta Logo
1:30 pm - 6:13 pmSEA-IDA
3h 43m1 stop
Delta Logo
6:57 pm - 11:20 pmIDA-SEA
5h 23m1 stop
$248Delta
Find Deal
sáb., nov. 8 - sáb., nov. 15
Hawaiian Airlines Logo
7:55 pm - 10:38 pmSEA-IDA
1h 43mnonstop
Hawaiian Airlines Logo
8:00 am - 8:59 amIDA-SEA
1h 59mnonstop
$268Hawaiian Airlines
Find Deal
lun., mar. 2 - jue., mar. 5
Delta Logo
5:25 am - 12:34 pmSEA-IDA
6h 09m1 stop
Delta Logo
6:57 pm - 12:11 amIDA-SEA
6h 14m1 stop
$278Delta
Find Deal
mié., nov. 19 - lun., nov. 24
American Airlines Logo
5:30 am - 9:34 pmSEA-IDA
15h 04m1 stop
American Airlines Logo
7:10 am - 6:11 pmIDA-SEA
12h 01m2 stops
$398American Airlines
Find Deal
dom., nov. 2 - mar., nov. 4
American Airlines Logo
5:30 am - 9:34 pmSEA-IDA
15h 04m1 stop
American Airlines Logo
7:10 am - 2:08 pmIDA-SEA
7h 58m1 stop
$399American Airlines
Find Deal
dom., nov. 2 - mar., nov. 4
United Airlines Logo
8:30 am - 1:35 pmSEA-IDA
28h 05m1 stop
United Airlines Logo
2:35 pm - 10:04 amIDA-SEA
20h 29m1 stop
$455United Airlines
Find Deal
jue., feb. 19 - lun., feb. 23
United Airlines Logo
3:51 pm - 1:35 pmSEA-IDA
20h 44m1 stop
United Airlines Logo
2:35 pm - 11:18 amIDA-SEA
21h 43m2 stops
$480United Airlines
Find Deal
jue., feb. 19 - lun., feb. 23

Delta flights from Seattle to Idaho Falls

Our best Delta deals on Seattle to Idaho Falls flight tickets
Delta
Nov 8
SEA1:30 pmSeattle/Tacoma Intl
3h 43m
1 stop
IDA6:13 pmIdaho Falls Fanning Field
Nov 15
IDA6:57 pmIdaho Falls Fanning Field
5h 23m
1 stop
SEA11:20 pmSeattle/Tacoma Intl
$248
Find similar
Delta
Nov 19
SEA5:25 amSeattle/Tacoma Intl
6h 09m
1 stop
IDA12:34 pmIdaho Falls Fanning Field
Nov 24
IDA6:57 pmIdaho Falls Fanning Field
6h 14m
1 stop
SEA12:11 amSeattle/Tacoma Intl
$278
Find similar
Delta
Nov 4
SEA7:10 amSeattle/Tacoma Intl
4h 23m
1 stop
IDA12:33 pmIdaho Falls Fanning Field
Nov 11
IDA6:57 pmIdaho Falls Fanning Field
5h 23m
1 stop
SEA11:20 pmSeattle/Tacoma Intl
$329
Find similar

American Airlines flights from Seattle to Idaho Falls

Our best American Airlines deals on Seattle to Idaho Falls flight tickets
American Airlines
Nov 2
SEA5:30 amSeattle/Tacoma Intl
15h 04m
1 stop
IDA9:34 pmIdaho Falls Fanning Field
Nov 4
IDA7:10 amIdaho Falls Fanning Field
12h 01m
2 stops
SEA6:11 pmSeattle/Tacoma Intl
$398
Find similar
American Airlines
Nov 2
SEA5:30 amSeattle/Tacoma Intl
15h 04m
1 stop
IDA9:34 pmIdaho Falls Fanning Field
Nov 4
IDA7:10 amIdaho Falls Fanning Field
7h 58m
1 stop
SEA2:08 pmSeattle/Tacoma Intl
$399
Find similar
American Airlines
Nov 22
SEA9:46 amSeattle/Tacoma Intl
11h 48m
1 stop
IDA10:34 pmIdaho Falls Fanning Field
Nov 25
IDA7:10 amIdaho Falls Fanning Field
7h 58m
1 stop
SEA2:08 pmSeattle/Tacoma Intl
$459
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Idaho Falls that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated octubre 9, 2025.
Use the filters below to find and compare flights from Seattle to Idaho Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleIdaho Falls

SEA - IDA

SEAIDA

Seattle/Tacoma Intl

jue. 10/30

9:15 pm-11:59 pm

Nonstop1h 44m

Idaho Falls Fanning Field

dom. 11/2

5:05 am-6:14 am

Nonstop2h 09m

$171

SeattleIdaho Falls

SEA - IDA

SEAIDA

Seattle/Tacoma Intl

mié. 12/17

9:15 pm-11:59 pm

Nonstop1h 44m

Idaho Falls Fanning Field

mar. 1/6

6:00 am-7:20 am

Nonstop2h 20m

$174

SeattleIdaho Falls

SEA - IDA

SEAIDA

Seattle/Tacoma Intl

mié. 10/29

9:15 pm-11:59 pm

Nonstop1h 44m

Idaho Falls Fanning Field

dom. 11/2

5:05 am-6:14 am

Nonstop2h 09m

$177

SeattleIdaho Falls

SEA - IDA

SEAIDA

Seattle/Tacoma Intl

sáb. 11/8

1:30 pm-6:13 pm

1 stop3h 43m

Idaho Falls Fanning Field

sáb. 11/15

6:57 pm-11:20 pm

1 stop5h 23m

$248

SeattleIdaho Falls

SEA - IDA

SEAIDA

Seattle/Tacoma Intl

lun. 3/2

7:55 pm-10:38 pm

Nonstop1h 43m

Idaho Falls Fanning Field

jue. 3/5

8:00 am-8:59 am

Nonstop1h 59m

$268

SeattleIdaho Falls

SEA - IDA

SEAIDA

Seattle/Tacoma Intl

mié. 11/19

5:25 am-12:34 pm

1 stop6h 09m

Idaho Falls Fanning Field

lun. 11/24

6:57 pm-12:11 am

1 stop6h 14m

$278

SeattleIdaho Falls

SEA - IDA

SEAIDA

Seattle/Tacoma Intl

dom. 11/2

5:30 am-9:34 pm

1 stop15h 04m

Idaho Falls Fanning Field

mar. 11/4

7:10 am-6:11 pm

2 stops12h 01m

$398

SeattleIdaho Falls

SEA - IDA

SEAIDA

Seattle/Tacoma Intl

dom. 11/2

5:30 am-9:34 pm

1 stop15h 04m

Idaho Falls Fanning Field

mar. 11/4

7:10 am-2:08 pm

1 stop7h 58m

$399

SeattleIdaho Falls

SEA - IDA

SEAIDA

Seattle/Tacoma Intl

jue. 2/19

8:30 am-1:35 pm

1 stop28h 05m

Idaho Falls Fanning Field

lun. 2/23

2:35 pm-10:04 am

1 stop20h 29m

$455

SeattleIdaho Falls

SEA - IDA

SEAIDA

Seattle/Tacoma Intl

jue. 2/19

3:51 pm-1:35 pm

1 stop20h 44m

Idaho Falls Fanning Field

lun. 2/23

2:35 pm-11:18 am

2 stops21h 43m

$480

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 May, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $253.

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

Our data shows that Tuesday is the least expensive day to fly to Idaho Falls. Tickets to fly out on this day can be as low as $298. 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 $463.

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 evening because they tend to be around $328. 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 weeks ahead of your departure date. In general, you can expect to find flights to Idaho Falls for around $338 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Idaho Falls from Seattle for as low as $178 on momondo.

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

There are 4 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?

No. A direct flight is the cheapest option for a flight between Seattle to Idaho Falls.

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

As of October 2025, prices for Seattle to Idaho Falls flights are approximately 51% cheaper 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

$148

Fastest flight time

1h 40m

Direct flights

Tue, Wed, Thu, 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 $148. The best round-trip flight deal from Seattle to Idaho Falls found on momondo in the last 72 hours is $227.
The fastest flight from Seattle to Idaho Falls takes 1h 40m
Direct flights go from Seattle to Idaho Falls on Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
There is 1 airport near Idaho Falls: Idaho Falls Fanning Field (IDA)
Search flight deals

  • 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 43m, 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
DeltaPriceFrom $118Free CancellationRating
7.9
7,969 reviews
Search Delta flights
Hawaiian AirlinesPriceFrom $149Free CancellationRating
7.8
2,775 reviews
Search Hawaiian Airlines flights
Alaska AirlinesPriceFrom $178Free CancellationRating
8.0
11,050 reviews
Search Alaska Airlines flights

  • Alaska Airlines Flights From Seattle to Idaho Falls

    Alaska Airlines flight deals from Seattle to Idaho Falls start from $178 round-trip. Over the 14 Alaska Airlines flights for this route in a normal week, average airfare is usually $328 round-trip - but some users have found much cheaper deals with momondo.

  • Hawaiian Airlines Flights From Seattle to Idaho Falls

    Hawaiian Airlines is also a popular choice for this route. Hawaiian Airlines flight deals for Seattle to Idaho Falls start from as low as $149 round-trip, depending on your selected dates, with average Hawaiian Airlines deals seen on momondo around $343. Hawaiian Airlines operates 14 flights to Idaho Falls from Seattle in an average week. Users have rated it 7.8/10 across 2,775 reviews.

Traveling to a place near Idaho Falls?

Book flights to Idaho Falls if you plan to visit one of these locations
Rexburg

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.

An easier way to manage your Idaho Falls trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
sáb. 11/8
sáb. 11/15
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States