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$56+ 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 1/14. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BOI
Nov 19 — Nov 261
Wed 11/19
Wed 11/26
1 adult, Economy
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Find 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 October 20, 2025.

This Trip.com deal was found by Cheapflights users on 10/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:00 amGEG - BOI
Nonstop1h 15mHawaiian Airlines
Wed 12/107:25 amBOI - GEG
Nonstop1h 18mHawaiian Airlines
Deal found 10/19$111
This Cheapflightsfares deal was found by Cheapflights users on 10/18. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/226:15 amGEG - BOI
Nonstop1h 11mAlaska Airlines
Tue 11/2510:47 pmBOI - GEG
Nonstop1h 16mAlaska Airlines
Deal found 10/18$116
This Cheapflightsfares deal was found by Cheapflights users on 10/18. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1512:39 pmSEA - BOI
Nonstop1h 33mAlaska Airlines
Tue 11/1810:05 amBOI - SEA
Nonstop1h 35mAlaska Airlines
Deal found 10/18$116
This Alaska Airlines deal was found by Cheapflights users on 10/19. 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 12/36:00 amGEG - BOI
Nonstop1h 15mAlaska Airlines
Wed 12/1010:25 pmBOI - GEG
Nonstop1h 19mAlaska Airlines
Deal found 10/19$117
This Delta deal was found by Cheapflights users on 10/19. 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.
Wed 11/269:35 pmSEA - BOI
Nonstop1h 32mDelta
Tue 12/25:20 amBOI - SEA
Nonstop2h 02mDelta
Deal found 10/19$117
This Alaska Airlines deal was found by Cheapflights users on 10/20. 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.
Sat 11/154:17 pmPUW - BOI
Nonstop1h 01mAlaska Airlines
Sat 11/225:30 pmBOI - PUW
Nonstop1h 01mAlaska Airlines
Deal found 10/20$117
This Kiwi.com deal was found by Cheapflights users on 10/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/157:55 amSEA - BOI
Nonstop1h 34mHawaiian Airlines
Sun 11/166:05 pmBOI - SEA
Nonstop1h 40mHawaiian Airlines
Deal found 10/19$123
This Cheapflightsfares deal was found by Cheapflights users on 10/18. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/69:28 pmSEA - BOI
Nonstop1h 22mAlaska Airlines
Mon 12/83:39 pmBOI - SEA
Nonstop1h 40mAlaska Airlines
Deal found 10/18$126
This Alaska Airlines deal was found by Cheapflights users on 10/19. 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 11/124:24 pmGEG - BOI
Nonstop1h 10mAlaska Airlines
Sun 11/1610:35 pmBOI - GEG
Nonstop1h 11mAlaska Airlines
Deal found 10/19$127
This Delta deal was found by Cheapflights users on 10/19. 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.
Sat 11/151:30 pmSEA - BOI
Nonstop1h 35mDelta
Mon 11/174:45 pmBOI - SEA
Nonstop1h 40mDelta
Deal found 10/19$127
This Alaska Airlines deal was found by Cheapflights users on 10/20. 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 11/194:17 pmPUW - BOI
Nonstop1h 01mAlaska Airlines
Mon 11/245:30 pmBOI - PUW
Nonstop1h 01mAlaska Airlines
Deal found 10/20$127
This Kiwi.com deal was found by Cheapflights users on 10/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/41:53 pmSEA - BOI
Nonstop1h 23mHawaiian Airlines
Thu 12/113:39 pmBOI - SEA
Nonstop1h 40mHawaiian Airlines
Deal found 10/20$130

Cheap flight deals from Washington to Boise

Keep the following information in mind while searching for Washington to Boise flight deals. Data was last updated October 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$111
(Trip.com)

One-way from

$56
(Southwest)

Popular in

December

Cheapest in

January

Average price

$256

Good round-trip deal

$135 or less

Good one-way deal

$78 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. 4% potential increase in price ($8 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 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 October 20, 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

SpokaneBoise

GEG - BOI

GEGBOI

Spokane

Wed 12/3

6:00 am-8:15 am

Nonstop1h 15m

Boise Air Term. Gowen Fld

Wed 12/10

10:25 pm-10:44 pm

Nonstop1h 19m

$117

SpokaneBoise

GEG - BOI

GEGBOI

Spokane

Tue 1/6

6:05 am-8:18 am

Nonstop1h 13m

Boise Air Term. Gowen Fld

Sat 1/10

5:00 pm-5:13 pm

Nonstop1h 13m

$117

PullmanBoise

PUW - BOI

PUWBOI

Pullman Moscow Regional

Sat 11/15

4:17 pm-6:18 pm

Nonstop1h 01m

Boise Air Term. Gowen Fld

Sat 11/22

5:30 pm-5:31 pm

Nonstop1h 01m

$117

PullmanBoise

PUW - BOI

PUWBOI

Pullman Moscow Regional

Wed 12/24

6:22 pm-8:26 pm

Nonstop1h 04m

Boise Air Term. Gowen Fld

Tue 12/30

5:42 pm-5:45 pm

Nonstop1h 03m

$117

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Tue 11/25

9:35 pm-12:07 am

Nonstop1h 32m

Boise Air Term. Gowen Fld

Mon 12/1

5:20 am-6:18 am

Nonstop1h 58m

$127

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Mon 11/10

7:45 pm-10:22 pm

Nonstop1h 37m

Boise Air Term. Gowen Fld

Sat 11/15

1:50 pm-2:42 pm

Nonstop1h 52m

$127

SpokaneBoise

GEG - BOI

GEGBOI

Spokane

Wed 11/12

4:24 pm-6:34 pm

Nonstop1h 10m

Boise Air Term. Gowen Fld

Sun 11/16

10:35 pm-10:46 pm

Nonstop1h 11m

$127

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Fri 11/28

8:11 am-10:45 am

Nonstop1h 34m

Boise Air Term. Gowen Fld

Wed 1/7

1:55 pm-2:39 pm

Nonstop1h 44m

$127

PullmanBoise

PUW - BOI

PUWBOI

Pullman Moscow Regional

Wed 11/19

4:17 pm-6:18 pm

Nonstop1h 01m

Boise Air Term. Gowen Fld

Mon 11/24

5:30 pm-5:31 pm

Nonstop1h 01m

$127

SpokaneBoise

GEG - BOI

GEGBOI

Spokane

Tue 1/6

1:00 pm-6:25 pm

1 stop4h 25m

Boise Air Term. Gowen Fld

Sat 1/10

10:38 am-2:42 pm

1 stop5h 04m

$137

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/20

Showing 1-10 of 60 results
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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 October 20, 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 evening could potentially save you up to 35% 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 November 10, 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. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from State of Washington to Boise

Explore weekly flight availability from Washington to Boise. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated October 20, 2025.

The most flights from USWA to BOI are scheduled on a Friday (64 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (47 on average).

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 14 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 15m. Fly via Alaska Airlines or Delta 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 Southwest, with whom users have recently found tickets for as low as $56. 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, Spokane - Boise Air Term. Gowen Fld or Portland - 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: Air France (99%), Virgin Atlantic (95%), KLM( 95%).

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

    While on average a flight from State of Washington to Boise is generally $190, our data shows the cheapest flight currently is $58. When looking at the most popular route, (Seattle/Tacoma Intl - Boise Air Term. Gowen Fld), you can expect to pay $117 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

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Alternative routes for Washington to Boise

See prices for flight routes from nearby airports that may be better suited for you.
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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 October 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$97Average$214FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$117Average$227FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$127Average$355FlexibilityNo cancel feeOn-time75%

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