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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

$82 CHEAP FLIGHTS from Washington to Boise

BOI

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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

Fri, Apr 24 - Fri, May 1

5:31 pm - 7:30 pm

PUW

BOI

0h 59mnonstop

4:55 pm - 4:54 pm

BOI

PUW

0h 59mnonstop

$157Alaska Airlines

Tue, Apr 21 - Tue, Apr 28

10:55 am - 4:25 pm

GEG

BOI

4h 30m

1 stop

5:00 pm - 10:45 pm

BOI

GEG

6h 45m

1 stop

$162Southwest

Wed, Apr 22 - Wed, Apr 29

5:31 pm - 7:30 pm

PUW

BOI

0h 59mnonstop

4:55 pm - 4:54 pm

BOI

PUW

0h 59mnonstop

$167Alaska Airlines

Thu, Apr 16 - Sun, Apr 19

1:03 pm - 3:29 pm

SEA

BOI

1h 26mnonstop

6:00 am - 6:43 am

BOI

SEA

1h 43mnonstop

$168Hawaiian Airlines

Wed, Apr 22 - Wed, Apr 29

10:55 am - 4:25 pm

GEG

BOI

4h 30m

1 stop

7:05 am - 1:45 pm

BOI

GEG

7h 40m

2 stops

$168Southwest

Sat, Apr 18 - Sun, Apr 19

2:48 pm - 5:10 pm

PDX

BOI

1h 22mnonstop

5:50 am - 6:19 am

BOI

PDX

1h 29mnonstop

$169Hawaiian Airlines

Tue, Apr 14 - Wed, Apr 22

7:49 am - 10:21 am

SEA

BOI

1h 32mnonstop

7:20 pm - 7:53 pm

BOI

SEA

1h 33mnonstop

$171Alaska Airlines

Fri, Apr 24 - Mon, Apr 27

9:40 pm - 11:59 pm

PDX

BOI

1h 19mnonstop

4:27 pm - 4:50 pm

BOI

PDX

1h 23mnonstop

$171Alaska Airlines

Tue, May 5 - Tue, May 5

12:55 pm - 3:33 pm

SEA

BOI

1h 38mnonstop

6:08 pm - 6:48 pm

BOI

SEA

1h 40mnonstop

$172Alaska Airlines

Wed, May 13 - Tue, May 19

12:33 pm - 12:27 pm

GEG

BOI

22h 54m

1 stop

1:22 pm - 11:38 am

BOI

GEG

23h 16m

1 stop

$192Frontier

Useful Info

Low season	January
High season	July
Cheapest flight	$82

Best time to beat the crowds with an average 14% drop in price.

Most popular time to fly and prices are also 1% lower on average.

Flight from Portland to Boise

AllieFlew with Alaska Airlines

GEG

BOI

May 2025

If you can, arrive at airport no sooner than 4 hours before flight.

Verified travelerFlew with Alaska Airlines

SEA

BOI

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.

McCall

Ontario

Everything you need to know for your flight to Boise

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Cabin class

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Information on the airport you'll fly into in Boise

Boise (BOI)

BOI

$82 Find Cheap Flights from Washington to Boise

KAYAK searches hundreds of travel sites at once for deals on flights to Boise

Cheap Flights from Washington to Boise

Recent round-trip flight deals from Washington to Boise

Recent one-way flight deals from Washington to Boise

Recent last minute flight deals from Washington to Boise

Recent direct flight deals from Washington to Boise

Good to know

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

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?

Everything you need to know for your flight to Boise

Information on the airport you'll fly into in Boise

Cabin class types available on flights to Washington

Complete your trip to Boise with a hotel stay or car rental

Find direct flights for Boise

Flights to other popular destinations

Flights from domestic origins to Boise

Choose which airport to fly into in Boise

Find deals for your return flight