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>

$106 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

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41,299,237 searches in the past 7 days on KAYAK

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

Cheapest round-trip

$106

Overall average: $184

Allegiant Air

Fri 12/12Mon 12/15

PDX - IDA • Non-stop

Cheapest one-way

$154

Typical prices: $295-$433

Alaska Airlines

Tue 11/18

PDX - IDA • 1 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

Fri, Dec 12 - Mon, Dec 15

12:01 pm - 2:36 pmPDX-IDA

1h 35mnonstop

3:26 pm - 4:11 pmIDA-PDX

1h 45mnonstop

$106Allegiant Air

Find Deal

Fri, Nov 21 - Wed, Nov 26

1:54 pm - 4:32 pmPDX-IDA

1h 38mnonstop

1:27 pm - 2:12 pmIDA-PDX

1h 45mnonstop

$143Allegiant Air

Find Deal

Tue, Feb 24 - Wed, Mar 4

12:40 pm - 3:23 pmSEA-IDA

1h 43mnonstop

4:00 pm - 4:59 pmIDA-SEA

1h 59mnonstop

$167Alaska Airlines

Find Deal

Thu, Dec 4 - Mon, Dec 8

9:15 pm - 11:59 pmSEA-IDA

1h 44mnonstop

5:07 pm - 6:16 pmIDA-SEA

2h 09mnonstop

$177Alaska Airlines

Find Deal

Wed, Dec 10 - Mon, Dec 15

5:49 pm - 11:59 pmPDX-IDA

5h 10m1 stop

3:26 pm - 4:11 pmIDA-PDX

1h 45mnonstop

$202Multiple Airlines

Find Deal

Wed, Dec 10 - Fri, Dec 12

5:49 pm - 11:59 pmPDX-IDA

5h 10m1 stop

3:26 pm - 4:11 pmIDA-PDX

1h 45mnonstop

$209Multiple Airlines

Find Deal

Fri, Dec 12 - Sat, Dec 13

2:23 pm - 10:21 pmPDX-IDA

6h 58m2 stops

6:00 am - 3:33 pmIDA-PDX

10h 33m2 stops

$236Delta

Find Deal

Tue, Feb 17 - Wed, Feb 25

4:55 pm - 10:21 pmSEA-IDA

4h 26m1 stop

6:45 pm - 12:11 amIDA-SEA

6h 26m1 stop

$238Delta

Find Deal

Fri, Dec 5 - Mon, Dec 8

10:40 am - 4:27 pmPDX-IDA

4h 47m1 stop

5:07 pm - 9:20 pmIDA-PDX

5h 13m1 stop

$259Hawaiian Airlines

Find Deal

Sun, Apr 5 - Thu, Apr 9

6:00 pm - 10:35 pmPSC-IDA

3h 35m1 stop

4:00 pm - 8:50 pmIDA-PSC

5h 50m1 stop

$509Hawaiian Airlines

Find Deal

Useful Info

Low season	January
High season	June
Cheapest flight	$106

Best time to beat the crowds with an average 10% drop in price.

Most popular time to fly and prices are also 23% 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)

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.

IDA

$106 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