Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Washington to Idaho Falls from $76

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 8/3. 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 Washington to Idaho Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
1:59 pm - 4:43 pm
SEA
-
IDA
1h 44mnonstop
Alaska Airlines Logo
5:59 pm - 7:02 pm
IDA
-
SEA
2h 03mnonstop
$157Alaska Airlines
Tue, Mar 3 - Tue, Mar 31
Delta Logo
4:36 pm - 10:40 pm
SEA
-
IDA
5h 04m
1 stop
Delta Logo
6:58 pm - 11:59 pm
IDA
-
SEA
6h 01m
1 stop
$167Delta
Fri, Apr 24 - Wed, Apr 29
Alaska Airlines Logo
8:52 pm - 11:36 pm
SEA
-
IDA
1h 44mnonstop
Alaska Airlines Logo
5:20 pm - 6:21 pm
IDA
-
SEA
2h 01mnonstop
$197Alaska Airlines
Fri, Feb 27 - Sat, Mar 7
Alaska Airlines Logo
8:52 pm - 11:36 pm
SEA
-
IDA
1h 44mnonstop
Alaska Airlines Logo
5:20 pm - 6:21 pm
IDA
-
SEA
2h 01mnonstop
$207Alaska Airlines
Fri, Feb 27 - Mon, Mar 9
Delta Logo
5:45 am - 12:22 pm
PDX
-
IDA
5h 37m
1 stop
Delta Logo
6:55 pm - 11:54 pm
IDA
-
PDX
5h 59m
1 stop
$207Delta
Tue, Mar 3 - Tue, Mar 10
Delta Logo
11:20 am - 5:49 pm
SEA
-
IDA
5h 29m
1 stop
Delta Logo
6:55 pm - 12:01 am
IDA
-
SEA
6h 06m
1 stop
$212Delta
Tue, Mar 3 - Mon, Mar 9
Multiple Airlines Logo
3:09 pm - 5:49 pm
PDX
-
IDA
1h 40mnonstop
Multiple Airlines Logo
4:17 pm - 4:53 pm
IDA
-
PDX
1h 36mnonstop
$222Multiple Airlines
Fri, Jun 19 - Wed, Jun 24
Alaska Airlines Logo
1:59 pm - 4:43 pm
SEA
-
IDA
1h 44mnonstop
Alaska Airlines Logo
5:20 pm - 6:21 pm
IDA
-
SEA
2h 01mnonstop
$227Alaska Airlines
Sat, Feb 28 - Mon, Mar 9
Multiple Airlines Logo
3:09 pm - 5:49 pm
PDX
-
IDA
1h 40mnonstop
Multiple Airlines Logo
6:00 am - 10:06 am
IDA
-
PDX
5h 06m
1 stop
$232Multiple Airlines
Fri, Jun 19 - Tue, Jun 23
Delta Logo
5:30 am - 12:22 pm
SEA
-
IDA
5h 52m
1 stop
Delta Logo
6:55 pm - 12:01 am
IDA
-
SEA
6h 06m
1 stop
$232Delta
Wed, Mar 4 - Tue, Mar 10

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 27
SEA8:52 pmSeattle/Tacoma Intl
1h 44m
IDA11:36 pmIdaho Falls Fanning Field
Mar 7
IDA5:20 pmIdaho Falls Fanning Field
2h 01m
SEA6:21 pmSeattle/Tacoma Intl
$197
Alaska Airlines
Feb 27
SEA8:52 pmSeattle/Tacoma Intl
1h 44m
IDA11:36 pmIdaho Falls Fanning Field
Mar 9
IDA5:20 pmIdaho Falls Fanning Field
2h 01m
SEA6:21 pmSeattle/Tacoma Intl
$207
Alaska Airlines
Feb 28
SEA1:59 pmSeattle/Tacoma Intl
1h 44m
IDA4:43 pmIdaho Falls Fanning Field
Mar 9
IDA5:20 pmIdaho Falls Fanning Field
2h 01m
SEA6:21 pmSeattle/Tacoma Intl
$227

Delta flights from State of Washington to Idaho Falls

Our best Delta deals on State of Washington to Idaho Falls flight tickets
Delta
Apr 24
SEA4:36 pmSeattle/Tacoma Intl
5h 04m
1 stop
IDA10:40 pmIdaho Falls Fanning Field
Apr 29
IDA6:58 pmIdaho Falls Fanning Field
6h 01m
1 stop
SEA11:59 pmSeattle/Tacoma Intl
$167
Delta
Mar 3
SEA11:20 amSeattle/Tacoma Intl
5h 29m
1 stop
IDA5:49 pmIdaho Falls Fanning Field
Mar 9
IDA6:55 pmIdaho Falls Fanning Field
6h 06m
1 stop
SEA12:01 amSeattle/Tacoma Intl
$212
Delta
Mar 4
SEA5:30 amSeattle/Tacoma Intl
5h 52m
1 stop
IDA12:22 pmIdaho Falls Fanning Field
Mar 9
IDA6:55 pmIdaho Falls Fanning Field
6h 06m
1 stop
SEA12:01 amSeattle/Tacoma Intl
$232

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington 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 February 7, 2026.
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

SeattleIdaho Falls

SEA - IDA

SEAIDA

Seattle/Tacoma Intl

Tue 3/3

1:59 pm-4:43 pm

Nonstop1h 44m

Idaho Falls Fanning Field

Tue 3/31

5:59 pm-7:02 pm

Nonstop2h 03m

$157

SeattleIdaho Falls

SEA - IDA

SEAIDA

Seattle/Tacoma Intl

Fri 4/24

4:36 pm-10:40 pm

1 stop5h 04m

Idaho Falls Fanning Field

Wed 4/29

6:58 pm-11:59 pm

1 stop6h 01m

$167

SeattleIdaho Falls

SEA - IDA

SEAIDA

Seattle/Tacoma Intl

Fri 2/27

8:52 pm-11:36 pm

Nonstop1h 44m

Idaho Falls Fanning Field

Sat 3/7

5:20 pm-6:21 pm

Nonstop2h 01m

$197

SeattleIdaho Falls

SEA - IDA

SEAIDA

Seattle/Tacoma Intl

Fri 2/27

8:52 pm-11:36 pm

Nonstop1h 44m

Idaho Falls Fanning Field

Mon 3/9

5:20 pm-6:21 pm

Nonstop2h 01m

$207

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Tue 3/3

5:45 am-12:22 pm

1 stop5h 37m

Idaho Falls Fanning Field

Tue 3/10

6:55 pm-11:54 pm

1 stop5h 59m

$207

SeattleIdaho Falls

SEA - IDA

SEAIDA

Seattle/Tacoma Intl

Tue 3/3

11:20 am-5:49 pm

1 stop5h 29m

Idaho Falls Fanning Field

Mon 3/9

6:55 pm-12:01 am

1 stop6h 06m

$212

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Fri 6/19

3:09 pm-5:49 pm

Nonstop1h 40m

Idaho Falls Fanning Field

Wed 6/24

4:17 pm-4:53 pm

Nonstop1h 36m

$222

SeattleIdaho Falls

SEA - IDA

SEAIDA

Seattle/Tacoma Intl

Sat 2/28

1:59 pm-4:43 pm

Nonstop1h 44m

Idaho Falls Fanning Field

Mon 3/9

5:20 pm-6:21 pm

Nonstop2h 01m

$227

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Fri 6/19

3:09 pm-5:49 pm

Nonstop1h 40m

Idaho Falls Fanning Field

Tue 6/23

6:00 am-10:06 am

1 stop5h 06m

$232

SeattleIdaho Falls

SEA - IDA

SEAIDA

Seattle/Tacoma Intl

Wed 3/4

5:30 am-12:22 pm

1 stop5h 52m

Idaho Falls Fanning Field

Tue 3/10

6:55 pm-12:01 am

1 stop6h 06m

$232

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 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

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 May is also cheap. Prices for this month can be found on momondo for an average of $238.

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 $287. 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 $448.

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 State of Washington to Idaho Falls during this time can be as low as $297. Try not to purchase tickets in the morning because they tend to be around $340. 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

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

You are more likely to see cheaper flights to Idaho Falls from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Idaho Falls for around $325 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Idaho Falls from State of Washington for as low as $178 on momondo.

What cabin class options are available on Washington to Idaho Falls Fanning Field flights?

There are 4 cabin classes available to choose from on Washington 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 State of Washington to Idaho Falls flights?

No. A direct flight is the cheapest option for a flight between State of Washington to Idaho Falls.

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

$118

Fastest flight time

1h 36m

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 $118. The best round-trip flight deal from State of Washington to Idaho Falls found on momondo in the last 72 hours is $212.
The fastest flight from State of Washington to Idaho Falls takes 1h 36m
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

  • 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?

  • 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?

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
DeltaPriceFrom $118Free CancellationRating
7.9
8,172 reviews
Search Delta flights
Hawaiian AirlinesPriceFrom $139Free CancellationRating
7.8
2,829 reviews
Search Hawaiian Airlines flights
Alaska AirlinesPriceFrom $177Free CancellationRating
8.0
11,851 reviews
Search Alaska Airlines flights

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 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.

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
Mon 3/9
Mon 3/16
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States