How many flights depart from State of Washington to Idaho Falls on average per week?

The number of flights available between State of Washington and Idaho Falls is 17 per week as of November 2026. The most frequent departure day is Mon, with 18% of weekly flights leaving on this day.

How many flights depart from State of Washington to Idaho Falls on average per day?

As of November 2026, there are 2 flights per day flying from State of Washington to Idaho Falls. The most common time of day flights depart is 12:00PM, with 50% of flights taking off in the afternoon.

How long does it take to fly to Idaho Falls?

If you’re flying from a popular airport in State of Washington, such as Seattle or Spokane, and flying into Idaho Falls, then you can expect flight times to average 4h 50m and 4h 59m, respectively.

What airlines fly to Idaho Falls?

Alaska Airlines, Delta and United Airlines are the top three most popular airlines that fly to Idaho Falls from State of Washington according to our data. Alaska Airlines is the first choice among our users, with 72% of people opting to fly with this airline when traveling to Idaho Falls. Keep in mind that there are 3 different airlines that fly to Idaho Falls on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Washington to Idaho Falls Fanning Field?

Alaska Airlines, Delta, and American Airlines are the most popular carriers operating from Washington to Idaho Falls Fanning Field

When did momondo last update prices for flights from Washington to Idaho Falls Fanning Field Airport?

Prices for flights from Washington to Idaho Falls Fanning Field Airport are updated daily.

How many operators does momondo search for flights from Washington to Idaho Falls Fanning Field Airport?

As of November 2026, there is 1 operator available to choose from for flights from Washington to Idaho Falls Fanning Field Airport.

How old do you have to be to fly from Washington to Idaho Falls Fanning Field Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington 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.

$184 Cheap Flights from Washington to Idaho Falls in 2026/27

Find the cheapest flights from Washington to Idaho Falls

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Cheap round-trip flights

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5:30 am - 12:17 pmSEA Seattle/Tacoma Intl-IDA Idaho Falls Fanning Field

5h 47m1 stop Salt Lake City

6:59 pm - 12:05 amIDA Idaho Falls Fanning Field-SEA Seattle/Tacoma Intl

6h 06m1 stop Salt Lake City

$187Delta

Mon, Dec 7 - Mon, Dec 14

1:25 pm - 6:17 pmSEA Seattle/Tacoma Intl-IDA Idaho Falls Fanning Field

3h 52m1 stop Salt Lake City

6:59 pm - 12:05 amIDA Idaho Falls Fanning Field-SEA Seattle/Tacoma Intl

6h 06m1 stop Salt Lake City

$187Delta

Thu, Dec 3 - Mon, Dec 7

8:04 pm - 10:52 pmSEA Seattle/Tacoma Intl-IDA Idaho Falls Fanning Field

1h 48mnonstop

8:00 am - 9:12 amIDA Idaho Falls Fanning Field-SEA Seattle/Tacoma Intl

2h 12mnonstop

$297Alaska Airlines

Tue, Jan 12 - Tue, Jan 19

5:30 am - 12:17 pmSEA Seattle/Tacoma Intl-IDA Idaho Falls Fanning Field

5h 47m1 stop Salt Lake City

5:35 am - 9:19 amIDA Idaho Falls Fanning Field-SEA Seattle/Tacoma Intl

4h 44m1 stop Salt Lake City

$297Delta

Sat, Dec 5 - Wed, Dec 9

12:35 pm - 3:21 pmSEA Seattle/Tacoma Intl-IDA Idaho Falls Fanning Field

1h 46mnonstop

8:00 am - 9:12 amIDA Idaho Falls Fanning Field-SEA Seattle/Tacoma Intl

2h 12mnonstop

$307Alaska Airlines

Sat, Jan 30 - Tue, Feb 2

12:35 pm - 3:21 pmSEA Seattle/Tacoma Intl-IDA Idaho Falls Fanning Field

1h 46mnonstop

1:56 pm - 3:02 pmIDA Idaho Falls Fanning Field-SEA Seattle/Tacoma Intl

2h 06mnonstop

$307Alaska Airlines

Wed, Feb 3 - Sat, Feb 6

12:24 pm - 3:18 pmSEA Seattle/Tacoma Intl-IDA Idaho Falls Fanning Field

1h 54mnonstop

6:00 am - 7:20 amIDA Idaho Falls Fanning Field-SEA Seattle/Tacoma Intl

2h 20mnonstop

$307Alaska Airlines

Tue, Dec 22 - Wed, Dec 30

8:04 pm - 10:52 pmSEA Seattle/Tacoma Intl-IDA Idaho Falls Fanning Field

1h 48mnonstop

3:58 pm - 6:43 pmIDA Idaho Falls Fanning Field-SEA Seattle/Tacoma Intl

3h 45m1 stop Portland

$307Alaska Airlines

Tue, Jan 12 - Tue, Jan 19

8:04 pm - 10:52 pmSEA Seattle/Tacoma Intl-IDA Idaho Falls Fanning Field

1h 48mnonstop

8:00 am - 9:12 amIDA Idaho Falls Fanning Field-SEA Seattle/Tacoma Intl

2h 12mnonstop

$307Alaska Airlines

Tue, Jan 12 - Tue, Jan 19

12:12 pm - 3:07 pmSEA Seattle/Tacoma Intl-IDA Idaho Falls Fanning Field

1h 55mnonstop

6:00 am - 7:20 amIDA Idaho Falls Fanning Field-SEA Seattle/Tacoma Intl

2h 20mnonstop

$307Alaska Airlines

Wed, Dec 16 - Sat, Dec 26

Cheap last minute flights

Enter your travel dates to find the best prices.

12:30 pm - 3:18 pmSEA Seattle/Tacoma Intl-IDA Idaho Falls Fanning Field

1h 48mnonstop

6:04 am - 7:20 amIDA Idaho Falls Fanning Field-SEA Seattle/Tacoma Intl

2h 16mnonstop

$617Alaska Airlines

Sat, Nov 14 - Mon, Nov 16

5:35 am - 12:15 pmSEA Seattle/Tacoma Intl-IDA Idaho Falls Fanning Field

5h 40m1 stop Salt Lake City

6:57 pm - 11:59 pmIDA Idaho Falls Fanning Field-SEA Seattle/Tacoma Intl

6h 02m1 stop Salt Lake City

$637Delta

Sat, Nov 14 - Mon, Nov 16

8:05 pm - 10:54 pmSEA Seattle/Tacoma Intl-IDA Idaho Falls Fanning Field

1h 49mnonstop

3:55 pm - 6:45 pmIDA Idaho Falls Fanning Field-SEA Seattle/Tacoma Intl

3h 50m1 stop Portland

$657Alaska Airlines

Sat, Nov 14 - Mon, Nov 16

8:05 pm - 10:54 pmSEA Seattle/Tacoma Intl-IDA Idaho Falls Fanning Field

1h 49mnonstop

1:53 pm - 2:57 pmIDA Idaho Falls Fanning Field-SEA Seattle/Tacoma Intl

2h 04mnonstop

$747Alaska Airlines

Wed, Nov 11 - Fri, Nov 13

8:45 am - 1:16 pmSEA Seattle/Tacoma Intl-IDA Idaho Falls Fanning Field

3h 31m1 stop Portland

1:53 pm - 2:57 pmIDA Idaho Falls Fanning Field-SEA Seattle/Tacoma Intl

2h 04mnonstop

$757Alaska Airlines

Wed, Nov 11 - Fri, Nov 13

7:40 am - 1:16 pmSEA Seattle/Tacoma Intl-IDA Idaho Falls Fanning Field

4h 36m1 stop Portland

3:55 pm - 8:32 pmIDA Idaho Falls Fanning Field-SEA Seattle/Tacoma Intl

5h 37m1 stop Portland

$767Alaska Airlines

Wed, Nov 11 - Fri, Nov 13

1:49 pm - 10:54 pmPSC Pasco Tri Cities-IDA Idaho Falls Fanning Field

8h 05m1 stop Seattle/Tacoma Intl

6:04 am - 10:25 amIDA Idaho Falls Fanning Field-PSC Pasco Tri Cities

5h 21m1 stop Seattle/Tacoma Intl

$815Alaska Airlines

Sat, Nov 14 - Mon, Nov 16

8:45 am - 1:16 pmSEA Seattle/Tacoma Intl-IDA Idaho Falls Fanning Field

3h 31m1 stop Portland

3:55 pm - 8:54 amIDA Idaho Falls Fanning Field-SEA Seattle/Tacoma Intl

17h 59m2 stops Portland Los Angeles

$822Alaska Airlines

Sat, Nov 14 - Mon, Nov 16

9:00 pm - 1:16 pmSEA Seattle/Tacoma Intl-IDA Idaho Falls Fanning Field

15h 16m2 stops Los Angeles Portland

3:55 pm - 8:32 pmIDA Idaho Falls Fanning Field-SEA Seattle/Tacoma Intl

5h 37m1 stop Portland

$857Alaska Airlines

Wed, Nov 11 - Fri, Nov 13

10:30 am - 10:59 pmSEA Seattle/Tacoma Intl-IDA Idaho Falls Fanning Field

11h 29m2 stops Las Vegas Harry Reid Intl Phoenix Sky Harbor Intl

6:36 am - 4:56 pmIDA Idaho Falls Fanning Field-SEA Seattle/Tacoma Intl

11h 20m2 stops Phoenix Sky Harbor Intl San Diego

$2,026American Airlines

Sat, Nov 14 - Mon, Nov 16

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Alaska Airlines flights from State of Washington to Idaho Falls

Our best Alaska Airlines deals on State of Washington to Idaho Falls flight tickets

Alaska Airlines

Feb 3

SEA12:35 pmSeattle/Tacoma Intl

1h 46m

IDA3:21 pmIdaho Falls Fanning Field

Feb 6

IDA1:56 pmIdaho Falls Fanning Field

2h 06m

SEA3:02 pmSeattle/Tacoma Intl

$307

Alaska Airlines

Jan 12

SEA7:46 amSeattle/Tacoma Intl

4h 33m

1 stop

IDA1:19 pmIdaho Falls Fanning Field

Jan 19

IDA3:58 pmIdaho Falls Fanning Field

3h 45m

1 stop

SEA6:43 pmSeattle/Tacoma Intl

$317

Alaska Airlines

Dec 23

SEA8:56 pmSeattle/Tacoma Intl

1h 49m

IDA11:45 pmIdaho Falls Fanning Field

Dec 27

IDA6:00 amIdaho Falls Fanning Field

2h 20m

SEA7:20 amSeattle/Tacoma Intl

$327

Delta flights from State of Washington to Idaho Falls

Our best Delta deals on State of Washington to Idaho Falls flight tickets

Delta

Dec 3

SEA1:25 pmSeattle/Tacoma Intl

3h 52m

1 stop

IDA6:17 pmIdaho Falls Fanning Field

Dec 7

IDA6:59 pmIdaho Falls Fanning Field

6h 06m

1 stop

SEA12:05 amSeattle/Tacoma Intl

$187

Delta

Dec 5

SEA5:30 amSeattle/Tacoma Intl

5h 47m

1 stop

IDA12:17 pmIdaho Falls Fanning Field

Dec 9

IDA5:35 amIdaho Falls Fanning Field

4h 44m

1 stop

SEA9:19 amSeattle/Tacoma Intl

$297

Delta

Dec 3

SEA1:25 pmSeattle/Tacoma Intl

3h 52m

1 stop

IDA6:17 pmIdaho Falls Fanning Field

Dec 5

IDA1:00 pmIdaho Falls Fanning Field

6h 47m

1 stop

SEA6:47 pmSeattle/Tacoma Intl

$308

momondo Fare Finder

Use the filters below to find and compare flights from Washington to Idaho Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleIdaho Falls

SEA Seattle/Tacoma Intl - IDA Idaho Falls Fanning Field

SEAIDA

Seattle/Tacoma Intl

Mon 12/7

5:30 am-12:17 pm

1 stop5h 47m

Idaho Falls Fanning Field

Mon 12/14

6:59 pm-12:05 am

1 stop6h 06m

$187

SeattleIdaho Falls

SEA Seattle/Tacoma Intl - IDA Idaho Falls Fanning Field

SEAIDA

Seattle/Tacoma Intl

Thu 12/3

1:25 pm-6:17 pm

1 stop3h 52m

Idaho Falls Fanning Field

Mon 12/7

6:59 pm-12:05 am

1 stop6h 06m

$187

SeattleIdaho Falls

SEA Seattle/Tacoma Intl - IDA Idaho Falls Fanning Field

SEAIDA

Seattle/Tacoma Intl

Tue 1/12

8:04 pm-10:52 pm

Nonstop1h 48m

Idaho Falls Fanning Field

Tue 1/19

8:00 am-9:12 am

Nonstop2h 12m

$297

SeattleIdaho Falls

SEA Seattle/Tacoma Intl - IDA Idaho Falls Fanning Field

SEAIDA

Seattle/Tacoma Intl

Sat 12/5

5:30 am-12:17 pm

1 stop5h 47m

Idaho Falls Fanning Field

Wed 12/9

5:35 am-9:19 am

1 stop4h 44m

$297

SeattleIdaho Falls

SEA Seattle/Tacoma Intl - IDA Idaho Falls Fanning Field

SEAIDA

Seattle/Tacoma Intl

Sat 1/30

12:35 pm-3:21 pm

Nonstop1h 46m

Idaho Falls Fanning Field

Tue 2/2

8:00 am-9:12 am

Nonstop2h 12m

$307

Quickest round-trip

SeattleIdaho Falls

SEA Seattle/Tacoma Intl - IDA Idaho Falls Fanning Field

SEAIDA

Seattle/Tacoma Intl

Wed 2/3

12:35 pm-3:21 pm

Nonstop1h 46m

Idaho Falls Fanning Field

Sat 2/6

1:56 pm-3:02 pm

Nonstop2h 06m

$307

SeattleIdaho Falls

SEA Seattle/Tacoma Intl - IDA Idaho Falls Fanning Field

SEAIDA

Seattle/Tacoma Intl

Tue 12/22

12:24 pm-3:18 pm

Nonstop1h 54m

Idaho Falls Fanning Field

Wed 12/30

6:00 am-7:20 am

Nonstop2h 20m

$307

SeattleIdaho Falls

SEA Seattle/Tacoma Intl - IDA Idaho Falls Fanning Field

SEAIDA

Seattle/Tacoma Intl

Tue 1/12

8:04 pm-10:52 pm

Nonstop1h 48m

Idaho Falls Fanning Field

Tue 1/19

3:58 pm-6:43 pm

1 stop3h 45m

$307

SeattleIdaho Falls

SEA Seattle/Tacoma Intl - IDA Idaho Falls Fanning Field

SEAIDA

Seattle/Tacoma Intl

Tue 1/12

8:04 pm-10:52 pm

Nonstop1h 48m

Idaho Falls Fanning Field

Tue 1/19

8:00 am-9:12 am

Nonstop2h 12m

$307

SeattleIdaho Falls

SEA Seattle/Tacoma Intl - IDA Idaho Falls Fanning Field

SEAIDA

Seattle/Tacoma Intl

Wed 12/16

12:12 pm-3:07 pm

Nonstop1h 55m

Idaho Falls Fanning Field

Sat 12/26

6:00 am-7:20 am

Nonstop2h 20m

$307

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from State of Washington 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

Prices

Airlines

Other information

What is the cheapest month to fly to Idaho Falls?

If you aren’t able to travel to Idaho Falls during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $277.

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

Our data shows that Saturday is the least expensive day to fly to Idaho Falls. Tickets to fly out on this day can be as low as $322. Be sure to avoid booking your departure on a Tuesday as prices are generally higher than usual. According to our data, the average ticket price to Idaho Falls on Tuesday is $528.

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 at noon. Flights from State of Washington to Idaho Falls during this time can be as low as $307. Try not to purchase tickets in the morning because they tend to be around $392. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Washington to Idaho Falls Fanning Field flight route?

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

What cabin class options are available on State of Washington to Idaho Falls flights?

There are 3 cabin classes available to choose from on State of Washington to Idaho Falls 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 State of Washington to Idaho Falls flights?

You could potentially save up to 12% on your flight if you consider stops on a State of Washington to Idaho Falls flight.

Cheap State of Washington to Idaho Falls flight deals and tips

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

Best Price Found	$184
Fastest flight time	1h 44m
Direct flights	Every day
Airports in Idaho Falls	1 airport

The best one-way flight to Idaho Falls from State of Washington in the past 72 hours is $184. The best round-trip flight deal from State of Washington to Idaho Falls found on momondo in the last 72 hours is $187.

The fastest flight from State of Washington to Idaho Falls takes 1h 44m

Direct flights go from State of Washington to Idaho Falls every day.

There is 1 airport in Idaho Falls. From State of Washington there are direct flights to Idaho Falls Fanning Field (IDA).

Search flight deals

Frequently asked questions about flying from Washington to Idaho Falls

When did momondo last update prices for flights from Washington to Idaho Falls Fanning Field Airport?
Prices for flights from Washington to Idaho Falls Fanning Field Airport are updated daily.
How many operators does momondo search for flights from Washington to Idaho Falls Fanning Field Airport?
As of November 2026, there is 1 operator available to choose from for flights from Washington to Idaho Falls Fanning Field Airport.
How old do you have to be to fly from Washington to Idaho Falls Fanning Field Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington 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 State of Washington to Idaho Falls?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from State of Washington to Idaho Falls is Embraer 175 (100.00% of total bookings).

Best airlines flying from State of Washington to Idaho Falls

Compare and see reviews for airlines that fly from State of Washington to Idaho Falls with momondo

Airline	Rating	Free Cancellation	Price
Alaska Airlines	PriceFrom $197	Free Cancellation	Rating 7.9 13,159 reviews		Search Alaska Airlines flights

Rexburg

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington to Idaho Falls for you.

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

All flight searches from Washington to Idaho Falls on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between Washington and Idaho Falls by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to Idaho Falls, momondo offers a useful price alert feature which will track prices for flights to Idaho Falls from Washington and alert you when they change.

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Airports servicing Idaho

Boise Air Term. Gowen Fld Airport

Lewiston Nez Perce Rgnl Airport

Pocatello Airport

Hailey Sun Valley-Friedman Airport

Twin Falls Joslin Airport

Cheap flights from Washington to Idaho Falls from $184

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Idaho Falls departing on 12/22. 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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Alaska Airlines flights from State of Washington to Idaho Falls

Our best Alaska Airlines deals on State of Washington to Idaho Falls flight tickets

Delta flights from State of Washington to Idaho Falls

Our best Delta deals on State of Washington to Idaho Falls flight tickets

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Use the filters below to find and compare flights from Washington to Idaho Falls that are best for you.

See travel insights to Idaho Falls from

How to get the cheapest flight ticket from State of Washington to Idaho Falls

What is the cheapest month to fly to Idaho Falls?

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

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

What is the cheapest Washington to Idaho Falls Fanning Field flight route?

What cabin class options are available on State of Washington to Idaho Falls flights?

Can stopping save me money on State of Washington to Idaho Falls flights?

What is the cheapest airline that flies from Washington to Idaho Falls Fanning Field?

What airlines fly to Idaho Falls?

How many flights depart from State of Washington to Idaho Falls on average per day?

How many flights depart from State of Washington to Idaho Falls on average per week?

How long does it take to fly to Idaho Falls?

Cheap State of Washington to Idaho Falls flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Airports in Idaho Falls

Frequently asked questions about flying from Washington to Idaho Falls

Best airlines flying from State of Washington to Idaho Falls

Compare and see reviews for airlines that fly from State of Washington to Idaho Falls with momondo

Traveling to a place near Idaho Falls?

Why use momondo?

An easier way to manage your Idaho Falls trip

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Get notified when prices go down

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Find better results for your trip to the United States

Airports servicing Idaho

Fly your favorite airline to Idaho Falls

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Idaho Falls

List of cabin classes available on flights landing in Idaho Falls. Availability may vary depending on flight origin and airline.

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