BOI

$60 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 10/7. 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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Flight Deals

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

Wed, Dec 3 - Tue, Dec 9
Alaska Airlines Logo
5:37 pm - 7:40 pmPUW-BOI
1h 03mnonstop
Alaska Airlines Logo
4:56 pm - 5:00 pmBOI-PUW
1h 04mnonstop
$117Alaska Airlines
Find Deal
Sat, Nov 1 - Sat, Nov 8
Hawaiian Airlines Logo
8:55 am - 11:03 amGEG-BOI
1h 08mnonstop
Hawaiian Airlines Logo
1:08 pm - 1:21 pmBOI-GEG
1h 13mnonstop
$134Hawaiian Airlines
Find Deal
Wed, Nov 19 - Mon, Nov 24
Delta Logo
1:30 pm - 4:05 pmSEA-BOI
1h 35mnonstop
Delta Logo
1:50 pm - 2:42 pmBOI-SEA
1h 52mnonstop
$137Delta
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Tue, Oct 14 - Wed, Oct 15
Southwest Logo
6:55 am - 6:45 pmSEA-BOI
10h 50m2 stops
Southwest Logo
4:40 pm - 11:00 pmBOI-SEA
7h 20m1 stop
$142Southwest
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Tue, Nov 18 - Sat, Nov 22
Southwest Logo
12:10 pm - 8:40 pmSEA-BOI
7h 30m1 stop
Southwest Logo
6:50 pm - 1:00 amBOI-SEA
7h 10m1 stop
$144Southwest
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Wed, Oct 15 - Wed, Oct 22
Multiple Airlines Logo
12:00 pm - 2:36 pmSEA-BOI
1h 36mnonstop
Multiple Airlines Logo
1:50 pm - 7:10 pmBOI-SEA
6h 20m1 stop
$148Multiple Airlines
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Wed, Dec 31 - Wed, Jan 14
Delta Logo
5:00 am - 10:21 amGEG-BOI
4h 21m1 stop
Delta Logo
6:00 pm - 9:03 pmBOI-GEG
4h 03m1 stop
$157Delta
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Wed, Oct 15 - Wed, Oct 22
United Airlines Logo
7:00 am - 1:43 pmSEA-BOI
5h 43m1 stop
United Airlines Logo
7:05 pm - 11:15 pmBOI-SEA
5h 10m1 stop
$177United Airlines
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Thu, Oct 16 - Thu, Oct 23
United Airlines Logo
7:00 am - 1:43 pmSEA-BOI
5h 43m1 stop
United Airlines Logo
9:45 am - 4:24 pmBOI-SEA
7h 39m1 stop
$224United Airlines
Find Deal
Sat, Oct 4 - Tue, Oct 7
Multiple Airlines Logo
7:15 am - 11:37 amPDX-BOI
27h 22m1 stop
Multiple Airlines Logo
6:00 am - 6:20 amBOI-PDX
1h 20mnonstop
$224Multiple Airlines
Find Deal

Everything you should know

Cheapest round-trip
$117
Overall average: $362
Alaska Airlines
Wed 12/3Tue 12/9
PUW - BOI • Non-stop
Cheapest one-way
$60
Typical prices: $98-213
Delta
Tue 10/7
SEA - BOI • Non-stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Boise!
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$60
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from Seattle 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?

Book flights to Boise if you plan to visit one of these locations
McCall
Ontario

Everything you need to know for your flight to Boise

Information on the airport you'll fly into in Boise

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