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 - Sun, Oct 11

8:59 am - 11:27 amSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 28mnonstop

3:36 pm - 4:24 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 48mnonstop

$172Delta

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 - Fri, Oct 2

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

1h 41mnonstop

6:23 am - 7:02 amBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 39mnonstop

$177Alaska Airlines

Mon, Oct 19 - Wed, Oct 21

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

8:59 am - 11:27 amSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 28mnonstop

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

1h 57mnonstop

$177Delta

Sat, Oct 17 - Wed, Oct 21

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

1h 30mnonstop

7:20 am - 2:17 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

7h 57m1 stop San Diego

$180Alaska Airlines

Thu, Oct 22 - Thu, Oct 29

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

1h 38mnonstop

2:49 pm - 9:45 amBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

19h 56m1 stop Las Vegas Harry Reid Intl

$190Multiple Airlines

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 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

$284Frontier

Sun, Sep 13 - Sun, Sep 20

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

Tue, Sep 15 - Thu, Sep 17

7:50 am - 3:00 pmPDX Portland-BOI Boise Air Term. Gowen Fld

6h 10m1 stop Oakland

4:55 pm - 11:20 pmBOI Boise Air Term. Gowen Fld-PDX Portland

7h 25m1 stop Phoenix Sky Harbor Intl

$391Southwest

Sat, Sep 12 - Sun, Sep 13

6:20 am - 12:15 pmPDX Portland-BOI Boise Air Term. Gowen Fld

4h 55m1 stop Las Vegas Harry Reid Intl

6:00 am - 11:20 amBOI Boise Air Term. Gowen Fld-PDX Portland

6h 20m1 stop Phoenix Sky Harbor Intl

$391Southwest

Tue, Sep 15 - Fri, Sep 18

4:00 pm - 11:15 pmPDX Portland-BOI Boise Air Term. Gowen Fld

6h 15m1 stop Denver Intl

3:50 pm - 10:15 pmBOI Boise Air Term. Gowen Fld-PDX Portland

7h 25m2 stops Las Vegas Harry Reid Intl Sacramento Intl

$396Southwest

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

Tue, Sep 15 - Mon, Sep 21

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

$479Delta

Recent direct flight deals from Washington to Boise

Thu, Oct 8 - Sun, Oct 11

8:59 am - 11:27 amSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 28mnonstop

3:36 pm - 4:24 pmBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 48mnonstop

$172Delta

Sun, Nov 1 - Mon, Nov 2

8:59 am - 11:27 amSEA Seattle/Tacoma Intl-BOI Boise Air Term. Gowen Fld

1h 28mnonstop

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

1h 57mnonstop

$177Delta

Thu, Oct 1 - Fri, Oct 2

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

1h 41mnonstop

6:23 am - 7:02 amBOI Boise Air Term. Gowen Fld-SEA Seattle/Tacoma Intl

1h 39mnonstop

$177Alaska Airlines

Mon, Oct 19 - Wed, Oct 21

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

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 15 - Sun, Oct 18

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

1h 30mnonstop

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

1h 37mnonstop

$201Alaska Airlines

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

Sat, Oct 17 - Wed, Oct 21

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

1h 30mnonstop

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

1h 42mnonstop

$207Alaska Airlines

Wed, Oct 28 - Tue, Nov 3

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

1h 30mnonstop

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

1h 39mnonstop

$207Alaska Airlines

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.