How does KAYAK find such low prices on flights from Washington 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 Washington to Idaho Falls. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Idaho Falls?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Idaho Falls from Washington is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Washington 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 Washington with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington 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 Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$89 CHEAP FLIGHTS from Washington to Idaho Falls

IDA

KAYAK searches hundreds of travel sites at once for deals on flights to Idaho Falls

...and more

Travelers love KAYAK

41.299.237 searches in the past 7 days on KAYAK

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Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheapest round-trip

$137

Overall average: $212

Alaska Airlines

Sat 2/7Sat 2/14

SEA - IDA • Non-stop

Cheapest one-way

$89

Typical prices: $97-$223

Allegiant Air

Fri 5/22

PDX - IDA • Non-stop

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Idaho Falls!

Flight Deals

Cheap Flights from Washington to Idaho Falls

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington 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 for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Washington to Idaho Falls

Sat, Feb 7 - Sat, Feb 14

8:16 pm - 10:59 pm

SEA

IDA

1h 43mnonstop

8:00 am - 9:07 am

IDA

SEA

2h 07mnonstop

$137Alaska Airlines

Fri, Jan 9 - Sun, Jan 11

3:35 pm - 6:18 pm

SEA

IDA

1h 43mnonstop

9:00 am - 10:10 am

IDA

SEA

2h 10mnonstop

$177Alaska Airlines

Sat, Mar 14 - Tue, Mar 17

1:59 pm - 4:43 pm

SEA

IDA

1h 44mnonstop

8:00 am - 9:07 am

IDA

SEA

2h 07mnonstop

$197Alaska Airlines

Tue, Jan 13 - Tue, Jan 20

3:35 pm - 6:18 pm

SEA

IDA

1h 43mnonstop

6:58 pm - 8:00 pm

IDA

SEA

2h 02mnonstop

$218Alaska Airlines

Sat, Feb 7 - Sat, Feb 14

5:00 am - 12:34 pm

SEA

IDA

6h 34m1 stop

5:25 am - 9:45 am

IDA

SEA

5h 20m1 stop

$228Delta

Tue, Jan 20 - Fri, Jan 23

9:30 pm - 6:18 pm

PDX

IDA

19h 48m1 stop

6:58 pm - 12:38 pm

IDA

PDX

18h 40m1 stop

$234Alaska Airlines

Mon, Jan 12 - Fri, Jan 16

8:16 pm - 10:59 pm

SEA

IDA

1h 43mnonstop

6:58 pm - 8:00 pm

IDA

SEA

2h 02mnonstop

$237Alaska Airlines

Tue, Jan 13 - Tue, Jan 20

5:25 am - 12:34 pm

SEA

IDA

6h 09m1 stop

6:35 pm - 12:09 am

IDA

SEA

6h 34m1 stop

$252Delta

Tue, May 19 - Wed, May 27

12:52 pm - 3:40 pm

SEA

IDA

1h 48mnonstop

6:00 am - 6:50 am

IDA

SEA

1h 50mnonstop

$258Alaska Airlines

Mon, Feb 2 - Fri, Feb 6

11:25 am - 5:51 pm

SEA

IDA

5h 26m1 stop

6:35 pm - 12:09 am

IDA

SEA

6h 34m1 stop

$262Delta

Useful Info

Low season	January
High season	July
Cheapest flight	$89

Best time to beat the crowds with an average 1% drop in price.

Most popular time to fly and prices are also 22% lower on average.

Flight from Portland to Idaho Falls

How does KAYAK find such low prices on flights from Washington 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 Washington to Idaho Falls.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Idaho Falls?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Idaho Falls from Washington 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 Washington 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 Washington with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington 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 Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Idaho Falls

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on the airport you'll fly into in Idaho Falls

Idaho Falls (IDA)

IDA

$89 Find Cheap Flights from Washington to Idaho Falls

KAYAK searches hundreds of travel sites at once for deals on flights to Idaho Falls

Everything you should know

Cheap Flights from Washington to Idaho Falls

Recent round-trip flight deals from Washington to Idaho Falls

Recent one-way flight deals from Washington to Idaho Falls

Recent last minute flight deals from Washington to Idaho Falls

Recent direct flight deals from Washington to Idaho Falls

Good to know

FAQs for booking flights from Washington to Idaho Falls

How does KAYAK find such low prices on flights from Washington 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 Washington to Idaho Falls.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Idaho Falls?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Idaho Falls from Washington 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 Washington 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 Washington with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington 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 Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Idaho Falls

Information on the airport you'll fly into in Idaho Falls

Cabin class types available on flights to Washington

Complete your trip to Idaho Falls with a hotel stay or car rental

Find direct flights for Idaho Falls

Flights to other popular destinations

Flights from domestic origins to Idaho Falls

Choose which airport to fly into in Idaho Falls

Find deals for your return flight