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.

$76 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

Mon, Oct 19 - Wed, Oct 21

3:55 pm - 1:05 amSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

8h 10m2 stops Sacramento Intl Las Vegas Harry Reid Intl

12:20 pm - 11:00 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

11h 40m2 stops San Jose Las Vegas Harry Reid Intl

$167Southwest

Tue, Oct 13 - Sat, Oct 17

7:07 pm - 1:47 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

17h 40m1 stop San Diego

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

1h 35mnonstop

$171Alaska Airlines

Thu, Oct 22 - Mon, Oct 26

9:16 pm - 1:55 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

15h 39m1 stop Las Vegas Harry Reid Intl

2:50 pm - 6:54 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

29h 04m2 stops Las Vegas Harry Reid Intl Los Angeles

$171Frontier

Thu, Nov 26 - Thu, Nov 26

7:20 am - 9:49 amSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 29mnonstop

2:00 pm - 2:40 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 40mnonstop

$172Alaska Airlines

Thu, Nov 19 - Thu, Dec 3

6:30 am - 9:07 amSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 37mnonstop

6:00 am - 6:41 amBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 41mnonstop

$175Alaska Airlines

Mon, Oct 19 - Wed, Oct 21

7:15 am - 9:54 amSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 39mnonstop

12:08 pm - 1:00 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 52mnonstop

$177Delta

Sun, Oct 4 - Thu, Oct 8

7:15 am - 9:54 amSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 39mnonstop

10:34 am - 11:31 amBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 57mnonstop

$177Delta

Sat, Oct 3 - Mon, Oct 5

7:11 am - 12:58 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

4h 47m1 stop San Francisco

6:50 pm - 1:15 amBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

7h 25m1 stop San Francisco

$197United Airlines

Wed, Feb 17 - Sat, Feb 20

8:50 am - 6:00 pmGEG Spokane-BOI Boise Air Term. Gowen Fld

8h 10m1 stop Las Vegas Harry Reid Intl

5:15 pm - 9:40 pmBOI Boise Air Term. Gowen Fld-GEG Spokane

5h 25m1 stop Sacramento Intl

$210Southwest

Sat, Oct 10 - Tue, Oct 13

6:05 am - 12:55 pmGEG Spokane-BOI Boise Air Term. Gowen Fld

5h 50m1 stop Sacramento Intl

7:40 am - 1:15 pmBOI Boise Air Term. Gowen Fld-GEG Spokane

6h 35m1 stop Sacramento Intl

$210Southwest

Recent last minute flight deals from Washington to Boise

Sat, Sep 19 - Thu, Sep 24

12:24 pm - 1:55 pmPDX Portland-BOI Boise Air Term. Gowen Fld

24h 31m1 stop Las Vegas Harry Reid Intl

2:50 pm - 11:54 amBOI Boise Air Term. Gowen Fld-PDX Portland

22h 04m1 stop Las Vegas Harry Reid Intl

$290Frontier

Sat, Sep 19 - Thu, Sep 24

12:24 pm - 1:55 pmPDX Portland-BOI Boise Air Term. Gowen Fld

24h 31m1 stop Las Vegas Harry Reid Intl

2:50 pm - 11:54 amBOI Boise Air Term. Gowen Fld-PDX Portland

22h 04m1 stop Las Vegas Harry Reid Intl

$310Frontier

Sun, Sep 20 - Fri, Oct 23

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

15h 10m1 stop Las Vegas Harry Reid Intl

5:59 am - 8:25 amBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

3h 26m1 stop Portland

$312Multiple Airlines

Sun, Sep 20 - Fri, Oct 23

7:15 am - 9:56 amSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 41mnonstop

4:18 pm - 4:56 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 38mnonstop

$438Alaska Airlines

Sun, Sep 20 - Sun, Sep 27

6:05 am - 11:55 amGEG Spokane-BOI Boise Air Term. Gowen Fld

4h 50m1 stop Sacramento Intl

7:30 am - 12:20 pmBOI Boise Air Term. Gowen Fld-GEG Spokane

5h 50m1 stop Sacramento Intl

$477Southwest

Sun, Sep 20 - Sun, Sep 27

2:50 pm - 12:30 amGEG Spokane-BOI Boise Air Term. Gowen Fld

8h 40m2 stops Las Vegas Harry Reid Intl Phoenix Sky Harbor Intl

6:00 am - 10:45 amBOI Boise Air Term. Gowen Fld-GEG Spokane

5h 45m1 stop Phoenix Sky Harbor Intl

$482Southwest

Thu, Sep 17 - Mon, Oct 19

9:18 pm - 11:44 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 26mnonstop

12:58 pm - 1:32 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 34mnonstop

$487Alaska Airlines

Thu, Sep 17 - Thu, Sep 24

8:59 am - 11:37 amSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 38mnonstop

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

1h 42mnonstop

$487Delta

Sat, Sep 19 - Wed, Sep 23

7:15 am - 9:54 amSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 39mnonstop

10:34 am - 11:26 amBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 52mnonstop

$487Delta

Fri, Sep 18 - Mon, Oct 19

7:15 am - 9:56 amSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 41mnonstop

12:58 pm - 1:32 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 34mnonstop

$487Alaska Airlines

Recent direct flight deals from Washington to Boise

Thu, Nov 26 - Thu, Nov 26

7:20 am - 9:49 amSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 29mnonstop

2:00 pm - 2:40 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 40mnonstop

$172Alaska Airlines

Thu, Nov 19 - Thu, Dec 3

6:30 am - 9:07 amSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 37mnonstop

6:00 am - 6:41 amBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 41mnonstop

$175Alaska Airlines

Sun, Oct 4 - Thu, Oct 8

7:15 am - 9:54 amSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 39mnonstop

10:34 am - 11:31 amBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 57mnonstop

$177Delta

Mon, Oct 19 - Wed, Oct 21

7:15 am - 9:54 amSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 39mnonstop

12:08 pm - 1:00 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 52mnonstop

$177Delta

Mon, Oct 19 - Mon, Oct 19

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

$177Alaska Airlines

Sun, Nov 1 - Mon, Nov 2

6:30 am - 9:07 amSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 37mnonstop

8:59 pm - 9:37 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 38mnonstop

$177Alaska Airlines

Fri, Oct 16 - Fri, Oct 16

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

$177Alaska Airlines

Tue, Dec 8 - Tue, Dec 15

9:50 am - 12:21 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 31mnonstop

11:25 am - 11:58 amBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 33mnonstop

$207Alaska Airlines

Sat, Oct 31 - Wed, Nov 4

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

1h 39mnonstop

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

1h 39mnonstop

$207Alaska Airlines

Wed, Oct 28 - Wed, Nov 4

7:41 pm - 10:06 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 25mnonstop

1:53 pm - 2:31 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 38mnonstop

$210Alaska Airlines

Useful Info

Low season	January
High season	July
Cheapest flight	$76

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

Most popular time to fly with an average 9% 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.