How does KAYAK find such low prices on flights from Idaho to Seattle?

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 Idaho to Seattle. 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 Idaho to Seattle?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Idaho 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 Idaho to Seattle?

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 Seattle with an airline and back to Idaho 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 Idaho to Seattle?

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 Seattle from Idaho 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>

$69 CHEAP FLIGHTS from Idaho to Seattle

SEA

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

...and more

Travelers love KAYAK

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

$136

Overall average: $217

Hawaiian Airlines

Sat 3/7Sun 3/8

BOI - SEA • Non-stop

Cheapest non-stop

$137

Typical prices: $175-$345

Alaska Airlines

Sat 3/7Tue 3/10

BOI - SEA • 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 Seattle!

Flight Deals

Cheap Flights from Idaho to Seattle

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 Idaho to Seattle

Sat, Mar 7 - Sun, Mar 8

6:00 pm - 6:38 pm

BOI

SEA

1h 38mnonstop

8:10 pm - 10:40 pm

SEA

BOI

1h 30mnonstop

$136Hawaiian Airlines

Sat, Feb 28 - Wed, Mar 4

6:00 pm - 6:38 pm

BOI

SEA

1h 38mnonstop

12:30 pm - 2:58 pm

SEA

BOI

1h 28mnonstop

$137Alaska Airlines

Sat, May 2 - Sun, May 10

5:40 am - 6:28 am

BOI

SEA

1h 48mnonstop

5:40 pm - 8:15 pm

SEA

BOI

1h 35mnonstop

$147Delta

Fri, Mar 6 - Mon, Mar 9

7:15 pm - 8:11 pm

BOI

SEA

1h 56mnonstop

1:30 pm - 4:00 pm

SEA

BOI

1h 30mnonstop

$157Delta

Sat, Mar 7 - Sat, Mar 14

3:45 pm - 5:00 pm

GEG

SEA

1h 15mnonstop

9:34 am - 10:50 am

SEA

GEG

1h 16mnonstop

$157Delta

Wed, Apr 15 - Thu, Apr 16

7:05 am - 1:25 pm

BOI

SEA

7h 20m

1 stop

6:15 pm - 1:00 am

SEA

BOI

5h 45m

1 stop

$167Southwest

Sun, May 10 - Wed, May 13

11:53 am - 9:27 am

BOI

SEA

22h 34m

1 stop

6:57 pm - 11:08 am

SEA

BOI

15h 11m

1 stop

$171Frontier

Wed, Apr 15 - Thu, Apr 16

2:00 pm - 11:35 pm

BOI

SEA

10h 35m

2 stops

6:15 pm - 1:00 am

SEA

BOI

5h 45m

1 stop

$172Southwest

Thu, Mar 26 - Sat, Mar 28

2:33 pm - 9:14 pm

JAC

SEA

7h 41m

1 stop

7:15 am - 2:20 pm

SEA

JAC

6h 05m

1 stop

$238United Airlines

Thu, Mar 12 - Mon, Mar 16

4:16 pm - 10:59 pm

JAC

SEA

7h 43m

1 stop

7:15 am - 2:20 pm

SEA

JAC

6h 05m

1 stop

$261United Airlines

Useful Info

Low season	January
High season	July
Cheapest flight	$69

Best time to beat the crowds with an average 17% drop in price.

Most popular time to fly with an average 16% increase in price.

Flight from Boise to Seattle

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

Lynnwood

Centralia

Fife

Lakewood

Mukilteo

Westport

Lacey

Edmonds

Aberdeen

Poulsbo

Woodinville

Shoreline

DuPont

Monroe

Castle Rock

Edgewood

Everything you need to know for your flight to Seattle

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 Seattle

Seattle (SEA)

SEA

$69 Find Cheap Flights from Idaho to Seattle

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

Everything you should know

Cheap Flights from Idaho to Seattle

Recent round-trip flight deals from Idaho to Seattle

Recent one-way flight deals from Idaho to Seattle

Recent last minute flight deals from Idaho to Seattle

Recent direct flight deals from Idaho to Seattle

Good to know

FAQs for booking flights from Idaho to Seattle

How does KAYAK find such low prices on flights from Idaho to Seattle?

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 Idaho to Seattle.

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Idaho 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 Idaho to Seattle?

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 Seattle with an airline and back to Idaho with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Idaho to Seattle?

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 Seattle from Idaho up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near Seattle?

Everything you need to know for your flight to Seattle

Information on the airport you'll fly into in Seattle

Cabin class types available on flights to Idaho

Complete your trip to Seattle with a hotel stay or car rental

Find direct flights for Seattle

Flights to other popular destinations

Flights from domestic origins to Seattle

Choose which airport to fly into in Seattle

Find deals for your return flight