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

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

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

Thu, Oct 8 - Thu, Oct 8

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

1h 39mnonstop

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

1h 42mnonstop

$177Delta

Thu, Oct 1 - Mon, Oct 5

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

1h 41mnonstop

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

19h 52m1 stop Las Vegas Harry Reid Intl

$194Multiple Airlines

Tue, Oct 13 - Sat, Oct 17

9:57 am - 12:35 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 38mnonstop

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

4h 11m1 stop Portland

$196Alaska Airlines

Sat, Oct 3 - Sat, Oct 10

1:22 pm - 9:39 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

7h 17m1 stop San Francisco

6:50 pm - 11:27 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

5h 37m1 stop San Francisco

$197United Airlines

Fri, Dec 4 - Sun, Dec 6

7:00 am - 3:06 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

7h 06m1 stop San Francisco

4:24 pm - 11:13 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

7h 49m1 stop San Francisco

$197United Airlines

Wed, Oct 28 - Sat, Oct 31

12:13 pm - 5:07 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

3h 54m1 stop Portland

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

1h 37mnonstop

$199Alaska Airlines

Tue, Oct 13 - Sat, Oct 17

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

$207Delta

Tue, Dec 1 - Tue, Dec 8

2:45 pm - 5:16 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 31mnonstop

8:59 am - 10:09 amBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

2h 10mnonstop

$207Delta

Tue, Oct 20 - Wed, Oct 21

6:50 am - 12:50 pmPDX Portland-BOI Boise Air Term. Gowen Fld

5h 00m1 stop San Jose

6:00 am - 11:50 amBOI Boise Air Term. Gowen Fld-PDX Portland

6h 50m1 stop Phoenix Sky Harbor Intl

$237Southwest

Wed, Oct 7 - Sat, Oct 10

6:50 am - 12:50 pmPDX Portland-BOI Boise Air Term. Gowen Fld

5h 00m1 stop San Jose

1:35 pm - 7:35 pmBOI Boise Air Term. Gowen Fld-PDX Portland

7h 00m1 stop San Diego

$237Southwest

Recent last minute flight deals from Washington to Boise

Thu, Sep 10 - Thu, Sep 17

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

$284Frontier

Thu, Sep 10 - Sun, Sep 13

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

$297Frontier

Thu, Sep 10 - Sun, Sep 13

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

$310Frontier

Sat, Sep 12 - Tue, Sep 15

6:00 am - 1:00 pmPDX Portland-BOI Boise Air Term. Gowen Fld

6h 00m1 stop Phoenix Sky Harbor Intl

11:40 am - 3:25 pmBOI Boise Air Term. Gowen Fld-PDX Portland

4h 45m1 stop Oakland

$343Southwest

Wed, Sep 9 - Sat, Sep 12

4:00 pm - 10:30 pmPDX Portland-BOI Boise Air Term. Gowen Fld

5h 30m1 stop Las Vegas Harry Reid Intl

6:40 am - 11:35 amBOI Boise Air Term. Gowen Fld-PDX Portland

5h 55m1 stop San Diego

$343Southwest

Wed, Sep 9 - Sat, Sep 12

11:35 am - 10:30 pmPDX Portland-BOI Boise Air Term. Gowen Fld

9h 55m2 stops Sacramento Intl Las Vegas Harry Reid Intl

2:25 pm - 9:25 pmBOI Boise Air Term. Gowen Fld-PDX Portland

8h 00m1 stop Denver Intl

$348Southwest

Fri, Sep 11 - Sat, Sep 26

5:00 pm - 7:08 pmGEG Spokane-BOI Boise Air Term. Gowen Fld

1h 08mnonstop

7:20 am - 11:53 pmBOI Boise Air Term. Gowen Fld-GEG Spokane

17h 33m1 stop San Diego

$445Alaska Airlines

Sat, Sep 12 - Sat, Sep 19

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

1h 38mnonstop

12:17 pm - 1:02 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 45mnonstop

$459Delta

Fri, Sep 11 - Thu, Sep 24

5:00 pm - 7:08 pmGEG Spokane-BOI Boise Air Term. Gowen Fld

1h 08mnonstop

7:30 am - 7:43 amBOI Boise Air Term. Gowen Fld-GEG Spokane

1h 13mnonstop

$462Alaska Airlines

Sat, Sep 12 - Mon, Sep 14

12:39 pm - 3:16 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 37mnonstop

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

1h 42mnonstop

$517Delta

Recent direct flight deals from Washington to Boise

Thu, Oct 8 - Thu, Oct 8

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

1h 39mnonstop

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

1h 42mnonstop

$177Delta

Tue, Oct 13 - Sat, Oct 17

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

$207Delta

Sat, Oct 17 - Tue, Oct 20

9:29 pm - 11:59 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 30mnonstop

6:04 pm - 6:47 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 43mnonstop

$207Alaska Airlines

Sat, Jan 23 - Tue, Jan 26

7:59 pm - 10:22 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 23mnonstop

5:58 pm - 6:40 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 42mnonstop

$207Alaska Airlines

Tue, Dec 1 - Tue, Dec 8

2:45 pm - 5:16 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 31mnonstop

8:59 am - 10:09 amBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

2h 10mnonstop

$207Delta

Sat, Nov 14 - Tue, Nov 17

7:50 pm - 10:26 pmSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 36mnonstop

5:57 pm - 6:44 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 47mnonstop

$207Delta

Wed, Oct 28 - Wed, Nov 4

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

$207Delta

Wed, Oct 28 - Sat, Oct 31

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

$207Delta

Sat, Oct 24 - Tue, Oct 27

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

1h 33mnonstop

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

1h 57mnonstop

$207Delta

Thu, Nov 19 - Sun, Nov 22

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

1h 37mnonstop

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

1h 40mnonstop

$207Alaska Airlines

Useful Info

Low season	January
High season	December
Cheapest flight	$76

Best time to beat the crowds with an average 19% drop in price.

Most popular time to fly with an average 3% 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.