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$61+ 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 9/27. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BOI
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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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 August 14, 2025.

Round-trip from

$117
(Hawaiian Airlines)

One-way from

$61
(iWofly)

Popular in

December

Cheapest in

January

Average price

$197

Good round-trip deal

$137 or less

Good one-way deal

$98 or less
From Washington to Boise Air Term. Gowen Fld
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One-way flight from Washington to Boise Air Term. Gowen Fld
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Highest demand for flights based on searches. 13% potential increase in price ($32 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Washington to Boise Air Term. Gowen Fld.
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Price to beat on a one-way flight from Washington to Boise Air Term. Gowen Fld.
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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 August 14, 2025.

This Hawaiian Airlines deal was found by Cheapflights users on 8/13. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/145:11 amGEG - BOI
Nonstop1h 09mHawaiian Airlines
Tue 10/219:53 pmBOI - GEG
Nonstop1h 06mHawaiian Airlines
Deal found 8/13$117
This Hawaiian Airlines deal was found by Cheapflights users on 8/14. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1311:30 amSEA - BOI
1 stop6h 07mHawaiian Airlines
Sat 9/205:45 pmBOI - SEA
Nonstop1h 37mHawaiian Airlines
Deal found 8/14$127
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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 9/137:50 amSEA - BOI
1 stop3h 13mAlaska Airlines
Sat 9/134:00 pmBOI - SEA
1 stop5h 35mAlaska Airlines
Deal found 8/13$131
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 9/63:51 pmSEA - BOI
Nonstop1h 25mHawaiian Airlines
Sun 9/78:00 amBOI - SEA
Nonstop1h 35mHawaiian Airlines
Deal found 8/13$136
This Hawaiian Airlines deal was found by Cheapflights users on 8/14. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/168:45 amGEG - BOI
Nonstop1h 07mHawaiian Airlines
Sat 10/181:50 pmBOI - GEG
Nonstop1h 13mHawaiian Airlines
Deal found 8/14$137
This Delta deal was found by Cheapflights users on 8/14. 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 9/139:25 pmSEA - BOI
Nonstop1h 32mDelta
Fri 9/197:45 pmBOI - SEA
Nonstop1h 45mDelta
Deal found 8/14$137
This Alaska Airlines deal was found by Cheapflights users on 8/12. 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 10/159:40 pmPDX - BOI
Nonstop1h 17mAlaska Airlines
Wed 10/224:01 pmBOI - PDX
Nonstop1h 21mAlaska Airlines
Deal found 8/12$137
This Southwest deal was found by Cheapflights users on 8/11. 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.
Tue 9/163:50 pmGEG - BOI
1 stop5h 20mSouthwest
Wed 9/176:25 pmBOI - GEG
1 stop4h 05mSouthwest
Deal found 8/11$141
This Southwest deal was found by Cheapflights users on 8/12. 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.
Tue 9/95:45 pmPDX - BOI
1 stop4h 35mSouthwest
Tue 9/165:25 pmBOI - PDX
1 stop5h 45mSouthwest
Deal found 8/12$141
This Southwest deal was found by Cheapflights users on 8/12. 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.
Tue 10/1411:50 amGEG - BOI
2 stops9h 20mSouthwest
Tue 10/215:30 pmBOI - GEG
1 stop6h 00mSouthwest
Deal found 8/12$146
This Southwest deal was found by Cheapflights users on 8/14. 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.
Tue 9/168:00 amSEA - BOI
2 stops7h 50mSouthwest
Tue 9/236:05 pmBOI - SEA
1 stop5h 45mSouthwest
Deal found 8/14$146
This Hawaiian Airlines deal was found by Cheapflights users on 8/14. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1311:30 amSEA - BOI
1 stop6h 07mHawaiian Airlines
Mon 9/156:35 amBOI - SEA
Nonstop1h 39mHawaiian Airlines
Deal found 8/14$147

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 August 14, 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

Tue 10/14

8:45 am-10:52 am

Nonstop1h 07m

Boise Air Term. Gowen Fld

Tue 10/21

1:50 pm-2:03 pm

Nonstop1h 13m

$117

SpokaneBoise

GEG - BOI

GEGBOI

Spokane

Tue 10/14

7:48 pm-9:54 pm

Nonstop1h 06m

Boise Air Term. Gowen Fld

Tue 10/21

1:50 pm-2:03 pm

Nonstop1h 13m

$117

SpokaneBoise

GEG - BOI

GEGBOI

Spokane

Wed 10/22

4:17 pm-6:29 pm

Nonstop1h 12m

Boise Air Term. Gowen Fld

Sat 10/25

1:50 pm-2:03 pm

Nonstop1h 13m

$117

SpokaneBoise

GEG - BOI

GEGBOI

Spokane

Wed 9/10

9:54 am-12:03 pm

Nonstop1h 09m

Boise Air Term. Gowen Fld

Wed 9/17

10:37 pm-10:58 pm

Nonstop1h 21m

$117

SpokaneBoise

GEG - BOI

GEGBOI

Spokane

Wed 9/10

7:48 pm-9:57 pm

Nonstop1h 09m

Boise Air Term. Gowen Fld

Wed 9/17

7:15 am-7:24 am

Nonstop1h 09m

$117

SpokaneBoise

GEG - BOI

GEGBOI

Spokane

Tue 9/9

5:12 am-7:20 am

Nonstop1h 08m

Boise Air Term. Gowen Fld

Tue 9/16

10:37 pm-10:58 pm

Nonstop1h 21m

$117

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Sat 9/13

11:30 am-6:37 pm

1 stop6h 07m

Boise Air Term. Gowen Fld

Sat 9/20

5:45 pm-6:22 pm

Nonstop1h 37m

$127

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Tue 9/16

9:40 pm-12:08 am

Nonstop1h 28m

Boise Air Term. Gowen Fld

Tue 9/23

6:59 pm-9:02 pm

1 stop3h 03m

$127

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Wed 9/17

9:40 pm-12:08 am

Nonstop1h 28m

Boise Air Term. Gowen Fld

Sat 9/20

4:00 pm-6:45 pm

1 stop3h 45m

$127

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Sat 9/13

7:50 am-12:03 pm

1 stop3h 13m

Boise Air Term. Gowen Fld

Sat 9/13

4:00 pm-8:35 pm

1 stop5h 35m

$131

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

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, October is the cheapest month in which you can book a flight from State of Washington to Boise (average of $314). Flying from State of Washington to Boise in June is currently the most expensive (average of $399). 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 August 14, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from State of Washington to Boise as you normally would.

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 August 14, 2025.

The most flights from USWA to BOI are scheduled on a Thursday (69 on average). You will have fewer flight options on Tuesday, 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.

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

    The cheapest airline one-way is Alaska Airlines, with whom users have recently found tickets for as low as $61. However, be on the lookout for offers from Southwest and Spirit Airlines, 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 Portland - Boise Air Term. Gowen Fld, Seattle/Tacoma Intl - 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: Delta (87%), Virgin Atlantic (86%), KLM( 86%).

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

    While on average a flight from State of Washington to Boise is generally $228, our data shows the cheapest flight currently is $88. When looking at the most popular route, (Portland - 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, October is the cheapest month in which you can book a flight from State of Washington to Boise (average of $314). Flying from State of Washington to Boise in June is currently the most expensive (average of $399). 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

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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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$104Average$237FlexibilityNo cancel feeOn-time85%
DeltaCheapest$111Average$211FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$136Average$374FlexibilityNo cancel feeOn-time75%

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