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>

$66 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

$129

Overall average: $159

Alaska Airlines

Sat 2/28Sun 3/1

BOI - SEA • Non-stop

Cheapest one-way

$66

Typical prices: $103-$273

Frontier

Fri 2/27

BOI - SEA • 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 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, Feb 28 - Sun, Mar 1

8:30 am - 9:18 am

BOI

SEA

1h 48mnonstop

8:10 pm - 10:40 pm

SEA

BOI

1h 30mnonstop

$129Alaska Airlines

Thu, Feb 26 - Sat, Feb 28

12:38 pm - 10:55 am

BOI

SEA

23h 17m

1 stop

1:16 pm - 11:11 am

SEA

BOI

20h 55m

1 stop

$134Frontier

Wed, Feb 25 - Wed, Mar 4

5:15 pm - 6:06 pm

BOI

SEA

1h 51mnonstop

7:15 am - 9:50 am

SEA

BOI

1h 35mnonstop

$137Delta

Sat, Feb 28 - Sun, Mar 1

4:30 pm - 9:42 pm

BOI

SEA

6h 12m

1 stop

8:10 pm - 10:40 pm

SEA

BOI

1h 30mnonstop

$141Hawaiian Airlines

Thu, Feb 19 - Sat, Feb 21

7:30 am - 8:25 am

BOI

SEA

1h 55mnonstop

10:40 am - 1:11 pm

SEA

BOI

1h 31mnonstop

$147Delta

Wed, Feb 25 - Wed, Mar 4

7:06 pm - 8:23 pm

GEG

SEA

1h 17mnonstop

9:50 pm - 11:01 pm

SEA

GEG

1h 11mnonstop

$147Hawaiian Airlines

Wed, Feb 25 - Wed, Mar 4

3:35 pm - 10:35 pm

BOI

SEA

8h 00m

1 stop

8:45 am - 5:15 pm

SEA

BOI

7h 30m

1 stop

$151Southwest

Sat, Feb 21 - Sun, Feb 22

8:10 am - 9:34 am

GEG

SEA

1h 24mnonstop

5:04 pm - 6:12 pm

SEA

GEG

1h 08mnonstop

$155Hawaiian Airlines

Tue, Feb 24 - Tue, Mar 3

5:25 pm - 9:50 pm

BOI

SEA

5h 25m

1 stop

11:20 am - 10:30 pm

SEA

BOI

10h 10m

2 stops

$156Southwest

Fri, Feb 27 - Sun, Mar 1

7:30 am - 8:25 am

BOI

SEA

1h 55mnonstop

7:15 am - 9:50 am

SEA

BOI

1h 35mnonstop

$157Delta

Useful Info

Low season	January
High season	July
Cheapest flight	$66

Best time to beat the crowds with an average 5% drop in price.

Most popular time to fly with an average 15% 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

Poulsbo

Aberdeen

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

$66 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