How does KAYAK find such low prices on flights from Washington to Boise?

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 Boise.

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

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

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 Boise 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 Boise?

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

$106 CHEAP FLIGHTS from Washington to Boise

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Flight Deals

Cheap Flights from Washington to Boise

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 Boise

Wed, Oct 28 - Sat, Oct 31

7:17 am - 9:56 amSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 39mnonstop

8:25 am - 9:07 amBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 42mnonstop

$197Alaska Airlines

Sat, Oct 24 - Wed, Oct 28

12:48 pm - 3:23 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 35mnonstop

6:43 am - 7:20 amBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 37mnonstop

$201Alaska Airlines

Wed, Nov 4 - Wed, Nov 11

9:24 pm - 11:49 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 25mnonstop

10:49 am - 11:28 amBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 39mnonstop

$201Alaska Airlines

Wed, Oct 28 - Sat, Oct 31

7:20 am - 1:10 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

4h 50m1 stop Portland

5:59 am - 9:10 amBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

4h 11m1 stop Portland

$202Alaska Airlines

Tue, Dec 1 - Sat, Dec 5

7:50 pm - 10:24 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 34mnonstop

3:44 pm - 4:40 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 56mnonstop

$207Delta

Sat, Oct 31 - Sat, Nov 7

2:45 pm - 5:14 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 29mnonstop

5:59 pm - 6:41 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 42mnonstop

$207Delta

Wed, Nov 4 - Wed, Nov 11

7:35 pm - 10:08 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 33mnonstop

8:55 am - 9:59 amBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

2h 04mnonstop

$207Delta

Sat, Oct 24 - Sat, Oct 31

2:05 pm - 9:40 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

6h 35m1 stop San Diego

11:35 am - 6:15 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

7h 40m1 stop Las Vegas Harry Reid Intl

$227Southwest

Sat, Oct 24 - Wed, Oct 28

9:45 am - 3:25 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

4h 40m1 stop San Jose

11:55 am - 6:45 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

7h 50m1 stop Phoenix Sky Harbor Intl

$227Southwest

Sat, Nov 7 - Sat, Nov 14

12:05 pm - 8:30 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

7h 25m1 stop Las Vegas Harry Reid Intl

7:00 am - 12:00 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

6h 00m1 stop San Diego

$227Southwest

Recent last minute flight deals from Washington to Boise

Thu, Oct 1 - Mon, Oct 5

9:45 pm - 1:55 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

15h 10m1 stop Las Vegas Harry Reid Intl

2:50 pm - 9:42 amBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

19h 52m1 stop Las Vegas Harry Reid Intl

$354Frontier

Thu, Oct 1 - Sun, Oct 4

9:45 pm - 1:55 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

15h 10m1 stop Las Vegas Harry Reid Intl

2:50 pm - 6:28 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

28h 38m1 stop Las Vegas Harry Reid Intl

$374Frontier

Thu, Oct 1 - Mon, Oct 5

9:45 pm - 1:55 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

15h 10m1 stop Las Vegas Harry Reid Intl

2:50 pm - 9:42 amBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

19h 52m1 stop Las Vegas Harry Reid Intl

$374Frontier

Thu, Oct 1 - Mon, Oct 5

9:45 pm - 1:55 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

15h 10m1 stop Las Vegas Harry Reid Intl

2:50 pm - 9:42 amBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

19h 52m1 stop Las Vegas Harry Reid Intl

$375Frontier

Fri, Oct 2 - Fri, Oct 30

3:34 pm - 10:38 pmGEG Spokane-BOI Boise Air Term. Gowen Fld

6h 04m1 stop Seattle/Tacoma Intl

8:46 pm - 8:54 pmBOI Boise Air Term. Gowen Fld-GEG Spokane

1h 08mnonstop

$452Alaska Airlines

Fri, Oct 2 - Thu, Oct 8

2:32 pm - 4:32 pmPUW Pullman Moscow Regional-BOI Boise Air Term. Gowen Fld

1h 00mnonstop

4:24 pm - 4:23 pmBOI Boise Air Term. Gowen Fld-PUW Pullman Moscow Regional

0h 59mnonstop

$457Alaska Airlines

Fri, Oct 2 - Sun, Oct 4

2:32 pm - 4:32 pmPUW Pullman Moscow Regional-BOI Boise Air Term. Gowen Fld

1h 00mnonstop

4:24 pm - 4:23 pmBOI Boise Air Term. Gowen Fld-PUW Pullman Moscow Regional

0h 59mnonstop

$457Alaska Airlines

Tue, Sep 29 - Tue, Oct 6

11:10 am - 6:40 pmGEG Spokane-BOI Boise Air Term. Gowen Fld

6h 30m1 stop Seattle/Tacoma Intl

8:59 am - 12:18 pmBOI Boise Air Term. Gowen Fld-GEG Spokane

4h 19m1 stop Seattle/Tacoma Intl

$477Delta

Mon, Sep 28 - Mon, Oct 5

5:10 am - 9:54 amGEG Spokane-BOI Boise Air Term. Gowen Fld

3h 44m1 stop Seattle/Tacoma Intl

7:19 pm - 11:59 pmBOI Boise Air Term. Gowen Fld-GEG Spokane

5h 40m1 stop Seattle/Tacoma Intl

$477Delta

Mon, Sep 28 - Tue, Oct 6

7:30 pm - 11:58 pmGEG Spokane-BOI Boise Air Term. Gowen Fld

3h 28m1 stop Seattle/Tacoma Intl

6:45 am - 10:38 amBOI Boise Air Term. Gowen Fld-GEG Spokane

4h 53m1 stop Seattle/Tacoma Intl

$477Delta

Recent direct flight deals from Washington to Boise

Wed, Oct 28 - Sat, Oct 31

7:17 am - 9:56 amSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 39mnonstop

8:25 am - 9:07 amBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 42mnonstop

$197Alaska Airlines

Sat, Oct 24 - Wed, Oct 28

12:48 pm - 3:23 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 35mnonstop

6:43 am - 7:20 amBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 37mnonstop

$201Alaska Airlines

Wed, Nov 4 - Wed, Nov 11

9:24 pm - 11:49 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 25mnonstop

10:49 am - 11:28 amBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 39mnonstop

$201Alaska Airlines

Sat, Nov 7 - Sat, Nov 14

3:40 pm - 6:03 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 23mnonstop

12:49 pm - 1:26 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 37mnonstop

$202Alaska Airlines

Tue, Dec 1 - Sat, Dec 5

7:50 pm - 10:24 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 34mnonstop

3:44 pm - 4:40 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 56mnonstop

$207Delta

Sat, Oct 31 - Sat, Nov 7

2:45 pm - 5:14 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 29mnonstop

5:59 pm - 6:41 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 42mnonstop

$207Delta

Sat, Oct 24 - Sat, Oct 31

7:17 am - 9:56 amSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 39mnonstop

2:06 pm - 2:41 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 35mnonstop

$207Alaska Airlines

Tue, Jan 26 - Tue, Feb 2

9:54 am - 12:24 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 30mnonstop

7:00 pm - 7:49 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 49mnonstop

$207Alaska Airlines

Tue, Nov 10 - Tue, Nov 17

7:50 pm - 10:20 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 30mnonstop

8:20 am - 9:05 amBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 45mnonstop

$207Alaska Airlines

Wed, Nov 4 - Sat, Nov 14

5:38 pm - 8:02 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 24mnonstop

12:49 pm - 1:26 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 37mnonstop

$207Alaska Airlines

Useful Info

Low season	January
High season	July
Cheapest flight	$106

Best time to beat the crowds with an average 18% drop in price.

Most popular time to fly with an average 7% increase in price.

Flight from Seattle to Boise

AllieFlew with Alaska Airlines-May 2025

If you can, arrive at airport no sooner than 4 hours before flight.

Verified travelerFlew with Alaska Airlines-Feb 2024

Keep an eye on boarding time. At SEATAC, if you are not sitting at your exact gate, you cannot hear boarding announcements.

How does KAYAK find such low prices on flights from Washington to Boise?
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 Boise.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Boise?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boise 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 Boise?
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 Boise 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 Boise?
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 Boise from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.