HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Boise

$68+ Cheap flights from Washington to Boise (BOI)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/17. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BOI
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Washington to Boise with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Washington to Boise

Cheapest flights from Washington to Boise
Explore the most affordable flight options available from Washington to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This Delta deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/267:45 amSEA - BOI
Nonstop1h 35mDelta
Tue 1/205:15 pmBOI - SEA
Nonstop1h 53mDelta
Deal found 12/16$247
This Alaska Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:22 pmPUW - BOI
Nonstop1h 04mAlaska Airlines
Mon 1/55:42 pmBOI - PUW
Nonstop1h 03mAlaska Airlines
Deal found 12/16$248
This Alaska Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/264:59 pmSEA - BOI
1 stop5h 58mAlaska Airlines
Tue 1/207:00 amBOI - SEA
1 stop4h 28mAlaska Airlines
Deal found 12/16$266
This Alaska Airlines deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:22 pmPUW - BOI
Nonstop1h 04mAlaska Airlines
Sun 1/45:42 pmBOI - PUW
Nonstop1h 03mAlaska Airlines
Deal found 12/15$278
This Delta deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/229:35 pmSEA - BOI
Nonstop1h 29mDelta
Tue 1/205:15 pmBOI - SEA
Nonstop1h 53mDelta
Deal found 12/16$307
This Alaska Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/313:43 pmSEA - BOI
Nonstop1h 22mAlaska Airlines
Sat 1/39:55 amBOI - SEA
Nonstop1h 43mAlaska Airlines
Deal found 12/16$317
This Alaska Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:06 amPDX - BOI
Nonstop1h 09mAlaska Airlines
Fri 1/24:16 pmBOI - PDX
Nonstop1h 28mAlaska Airlines
Deal found 12/16$318
This Alaska Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/165:06 pmSEA - BOI
1 stop5h 53mAlaska Airlines
Tue 1/207:00 amBOI - SEA
1 stop4h 28mAlaska Airlines
Deal found 12/16$326
This Delta deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/254:40 pmSEA - BOI
Nonstop1h 27mDelta
Wed 12/315:40 amBOI - SEA
Nonstop1h 57mDelta
Deal found 12/17$327
This Alaska Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/305:20 amSEA - BOI
1 stop2h 55mAlaska Airlines
Wed 12/315:43 amBOI - SEA
1 stop5h 48mAlaska Airlines
Deal found 12/16$336
This Southwest deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:00 amPDX - BOI
1 stop4h 20mSouthwest
Sat 1/35:35 amBOI - PDX
1 stop4h 55mSouthwest
Deal found 12/16$337
This Delta deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/167:45 pmSEA - BOI
Nonstop1h 31mDelta
Tue 1/205:40 amBOI - SEA
Nonstop1h 56mDelta
Deal found 12/16$338

Find flight deals from Washington to Boise

Keep the following information in mind while searching for Washington to Boise flight deals. Data was last updated December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$99
(Delta)

One-way from

$68
(Alaska Airlines)

Popular in

December

Cheapest in

January

Average price

$267

Good round-trip deal

$99 or less

Good one-way deal

$149 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Boise Air Term. Gowen Fld flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Boise Air Term. Gowen Fld flights.
Search Deals
From Washington to Boise Air Term. Gowen Fld
Search Deals
One-way flight from Washington to Boise Air Term. Gowen Fld
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($4 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Washington to Boise Air Term. Gowen Fld.
Search Deals
Price to beat on a one-way flight from Washington to Boise Air Term. Gowen Fld.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington to Boise that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from Washington to Boise that are best for you.

Fly from

Washington

Fly to

Boise

Route

Depart

Return

Price

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Wed 2/18

6:48 pm-9:15 pm

Nonstop1h 27m

Boise Air Term. Gowen Fld

Sat 2/21

6:28 am-7:13 am

Nonstop1h 45m

$99

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Tue 2/17

5:45 pm-8:10 pm

Nonstop1h 25m

Boise Air Term. Gowen Fld

Tue 2/24

1:51 pm-2:45 pm

Nonstop1h 54m

$99

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Tue 2/17

1:50 pm-4:15 pm

Nonstop1h 25m

Boise Air Term. Gowen Fld

Sun 2/22

7:30 am-8:25 am

Nonstop1h 55m

$99

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Tue 1/13

10:25 am-1:00 pm

Nonstop1h 35m

Boise Air Term. Gowen Fld

Mon 1/19

9:15 am-10:14 am

Nonstop1h 59m

$99

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Sat 1/17

7:30 pm-9:58 pm

Nonstop1h 28m

Boise Air Term. Gowen Fld

Mon 1/19

7:25 am-8:20 am

Nonstop1h 55m

$99

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Sat 2/21

5:45 pm-8:10 pm

Nonstop1h 25m

Boise Air Term. Gowen Fld

Sun 2/22

7:30 am-8:25 am

Nonstop1h 55m

$99

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Thu 2/19

10:40 am-1:11 pm

Nonstop1h 31m

Boise Air Term. Gowen Fld

Sat 2/21

7:30 am-8:25 am

Nonstop1h 55m

$99

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Tue 2/17

5:45 pm-8:10 pm

Nonstop1h 25m

Boise Air Term. Gowen Fld

Sat 2/21

7:30 am-8:25 am

Nonstop1h 55m

$99

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Thu 1/22

7:20 am-9:57 am

Nonstop1h 37m

Boise Air Term. Gowen Fld

Thu 2/5

9:15 am-10:14 am

Nonstop1h 59m

$99

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Sat 2/21

7:30 pm-9:56 pm

Nonstop1h 26m

Boise Air Term. Gowen Fld

Tue 2/24

7:30 am-8:25 am

Nonstop1h 55m

$99

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Washington to Boise

Have a flexible travel schedule? Discover the best time to fly to Boise from Washington with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington to Boise

What is the cheapest month to book a flight from State of Washington to Boise?

Currently, January is the cheapest month in which you can book a flight from State of Washington to Boise (average of $77). Flying from State of Washington to Boise in July is currently the most expensive (average of $175). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from WA to BOI?

Find hourly flight availability from Washington to Boise. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

One of the essential ways to save on airfare from State of Washington to Boise is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 34% on airfare.

What is the cheapest day to fly from State of Washington to Boise?

Use this chart to determine the cheapest time to fly round-trip from Washington to Boise. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their State of Washington to Boise flight should consider departing on Friday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

Find useful and relevant information for your journey from Washington to Boise. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Boise from Washington?

    Boise Air Term. Gowen Fld (BOI) is the airport you will fly into if you book a flight from Washington to Boise. It is only a 3.3 mi journey from Air Term. Gowen Fld (BOI) to Boise’s city center.

  • How popular is this State of Washington to Boise flight route?

    This flight path from Washington to Boise Air Term. Gowen Fld was viewed by 8 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from State of Washington to Boise?

    There are many flights that can get you from State of Washington to Boise in 1h 13m. Fly via Alaska Airlines, Delta, or Hawaiian Airlines to get the fastest option. Airlines will cover a distance of 287 mi. All flights are typically nonstop.

  • What are the cheapest airlines to fly from State of Washington to Boise one-way?

    The cheapest airline one-way is Hawaiian Airlines, with whom users have recently found tickets for as low as $58. However, be on the lookout for offers from Alaska Airlines and Delta, as they are both options that can get you from State of Washington to Boise for a low price.

  • What are the most popular routes from State of Washington to Boise?

    When deciding which route to take from State of Washington to Boise consider Seattle/Tacoma Intl - Boise Air Term. Gowen Fld, Portland - Boise Air Term. Gowen Fld or Spokane - Boise Air Term. Gowen Fld as they are the most popular.

  • What are the most reliable airlines from State of Washington to Boise?

    Before booking your flight to Boise from State of Washington, check out the most reliable airlines to get you to your destination on time: WestJet (97%), Japan Airlines (93%), KLM( 90%).

  • What are the cheapest flights from State of Washington to Boise?

    While on average a flight from State of Washington to Boise is generally $235, our data shows the cheapest flight currently is $59. When looking at the most popular route, (Seattle/Tacoma Intl - Boise Air Term. Gowen Fld), you can expect to pay $99 for that flight.

  • Can I find deals for flights from Washington to Boise that include hotel bookings?

    Yes. In addition to deals on Washington to Boise flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington to Boise?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Boise.

  • Can I find deals for business class flights from Washington to Boise?

    Yes. Cheapflights offers flight deals from Washington to Boise by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from State of Washington to Boise?

    Currently, January is the cheapest month in which you can book a flight from State of Washington to Boise (average of $77). Flying from State of Washington to Boise in July is currently the most expensive (average of $175). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Boise?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Washington to Boise

See prices for flight routes from nearby airports that may be better suited for you.
Newark to Jackson flights
John F Kennedy Intl to Jackson flights
LaGuardia to Jackson flights
Seattle to Spokane flights
Seattle to Boise flights
San Francisco to Jackson flights
Los Angeles to Jackson flights
Los Angeles to Spokane flights
Denver to Boise flights
Minneapolis to Spokane flights
Dallas/Fort Worth to Boise flights
Los Angeles to Boise flights
O'Hare Intl to Jackson flights
O'Hare Intl to Boise flights
Boston to Jackson flights
Denver to Spokane flights
Dallas/Fort Worth to Jackson flights
Dulles Intl to Jackson flights
Minneapolis to Boise flights
San Francisco to Boise flights
San Francisco to Hailey flights
Reagan-National to Jackson flights
Burbank to Boise flights
Newark to Hailey flights
O'Hare Intl to Spokane flights
John F Kennedy Intl to Hailey flights
Sky Harbor Intl to Spokane flights
Sky Harbor Intl to Boise flights
Dallas/Fort Worth to Spokane flights
San Diego to Spokane flights
Baltimore to Jackson flights
John F Kennedy Intl to Boise flights
Las Vegas to Boise flights
Santa Ana to Boise flights
LaGuardia to Hailey flights
Portland to Boise flights
Atlanta to Jackson flights
Boston to Boise flights
San Diego to Boise flights
Denver to Jackson flights
Seattle to Jackson flights
San Francisco to Spokane flights
Philadelphia to Jackson flights
Ontario to Boise flights
Nashville to Spokane flights
Newark to Boise flights
Cincinnati to Jackson flights
Portland to Spokane flights
Sacramento to Spokane flights
Santa Ana to Spokane flights

Top 3 airlines flying from Washington to Boise

Discover the top 3 airlines that operate flights from Washington to Boise. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$99Average$211FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$116Average$295FlexibilityNo cancel feeOn-time75%
Hawaiian AirlinesCheapest$117Average$235FlexibilityNo cancel feeOn-time85%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.