BOI

$51 Find Cheap Flights from Washington to Boise

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Boise departing on 8/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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Cheap Flights from Washington to Boise

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington to Boise that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Washington to Boise

Tue, Aug 19 - Tue, Aug 19
Southwest Logo
8:00 am - 3:20 pmSEA-BOI
6h 20m1 stop
Southwest Logo
6:05 pm - 10:50 pmBOI-SEA
5h 45m1 stop
$101Southwest
Find Deal
Tue, Aug 19 - Tue, Aug 19
Southwest Logo
8:00 am - 4:50 pmSEA-BOI
7h 50m2 stops
Southwest Logo
6:05 pm - 10:50 pmBOI-SEA
5h 45m1 stop
$106Southwest
Find Deal
Sat, Aug 23 - Sat, Aug 30
Hawaiian Airlines Logo
1:30 pm - 3:54 pmSEA-BOI
1h 24mnonstop
Hawaiian Airlines Logo
8:46 pm - 9:21 pmBOI-SEA
1h 35mnonstop
$107Hawaiian Airlines
Find Deal
Sat, Aug 16 - Tue, Aug 19
Hawaiian Airlines Logo
10:11 am - 12:20 pmGEG-BOI
1h 09mnonstop
Hawaiian Airlines Logo
2:44 pm - 2:55 pmBOI-GEG
1h 11mnonstop
$117Hawaiian Airlines
Find Deal
Sat, Aug 23 - Tue, Aug 26
Delta Logo
1:10 pm - 3:40 pmSEA-BOI
1h 30mnonstop
Delta Logo
2:00 pm - 2:40 pmBOI-SEA
1h 40mnonstop
$117Delta
Find Deal
Sat, Aug 23 - Sun, Aug 24
Alaska Airlines Logo
9:40 pm - 11:59 pmPDX-BOI
1h 19mnonstop
Alaska Airlines Logo
6:00 am - 6:20 amBOI-PDX
1h 20mnonstop
$122Alaska Airlines
Find Deal
Sat, Aug 16 - Tue, Aug 19
Delta Logo
6:10 am - 11:04 amGEG-BOI
3h 54m1 stop
Delta Logo
2:00 pm - 6:45 pmBOI-GEG
5h 45m1 stop
$137Delta
Find Deal
Thu, Sep 4 - Sat, Sep 6
Alaska Airlines Logo
2:30 pm - 4:50 pmPDX-BOI
1h 20mnonstop
Alaska Airlines Logo
1:30 pm - 1:50 pmBOI-PDX
1h 20mnonstop
$137Alaska Airlines
Find Deal
Fri, Sep 19 - Mon, Sep 22
Spirit Airlines Logo
12:07 pm - 8:21 pmPDX-BOI
7h 14m1 stop
Spirit Airlines Logo
9:16 pm - 11:12 amBOI-PDX
14h 56m1 stop
$189Spirit Airlines
Find Deal
Fri, Sep 12 - Sun, Sep 14
Spirit Airlines Logo
12:07 pm - 8:21 pmPDX-BOI
7h 14m1 stop
Spirit Airlines Logo
9:16 pm - 11:12 amBOI-PDX
14h 56m1 stop
$196Spirit Airlines
Find Deal
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Good to know

Low seasonJanuary
High seasonJuly
Cheapest flight$51
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from Spokane to Boise

Flights from Washington to Boise: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Washington to Boise 
AllieFlew with Alaska AirlinesGEG-BOIMay 2025
If you can, arrive at airport no sooner than 4 hours before flight.
Verified travelerFlew with Alaska AirlinesSEA-BOIFeb 2024
Keep an eye on boarding time. At SEATAC, if you are not sitting at your exact gate, you cannot hear boarding announcements.

FAQs for booking flights from Washington to Boise

  • 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.

Traveling to a place near Boise?

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Everything you need to know for your flight to Boise

Information on the airport you'll fly into in Boise

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