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Boise

$84+ 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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BOI
Jul 9 — Jul 161
Thu 7/9
Thu 7/16
1 adult, Economy
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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 June 9, 2026.

This Alaska Airlines deal was found by Cheapflights users on 6/7. 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 10/2111:33 am
SEA
-
BOI
Nonstop1h 38m
Alaska Airlines
Sat 10/246:01 pm
BOI
-
SEA
Nonstop1h 46m
Alaska Airlines
Deal found 6/7$197
This CheapOair deal was found by Cheapflights users on 6/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/139:33 pm
PDX
-
BOI
Nonstop1h 21m
Alaska Airlines
Sat 10/175:56 am
BOI
-
PDX
Nonstop1h 24m
Alaska Airlines
Deal found 6/9$197
This Southwest deal was found by Cheapflights users on 6/8. 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 8/255:45 am
GEG
-
BOI
1 stop7h 15m
Southwest
Sat 8/297:15 am
BOI
-
GEG
1 stop6h 45m
Southwest
Deal found 6/8$203
This Delta deal was found by Cheapflights users on 6/8. 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 9/2612:35 pm
SEA
-
BOI
Nonstop1h 37m
Delta
Sun 9/275:59 pm
BOI
-
SEA
Nonstop1h 42m
Delta
Deal found 6/8$207
This Priceline deal was found by Cheapflights users on 6/7. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/110:47 am
PDX
-
BOI
Nonstop1h 34m
Alaska Airlines
Sat 9/59:00 am
BOI
-
PDX
Nonstop1h 24m
Alaska Airlines
Deal found 6/7$207
This Southwest deal was found by Cheapflights users on 6/8. 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 7/215:55 pm
PDX
-
BOI
1 stop5h 35m
Southwest
Wed 8/1211:40 am
BOI
-
PDX
1 stop4h 45m
Southwest
Deal found 6/8$213
This Delta deal was found by Cheapflights users on 6/8. 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 8/277:50 pm
SEA
-
BOI
Nonstop1h 40m
Delta
Mon 8/316:49 am
BOI
-
SEA
Nonstop1h 46m
Delta
Deal found 6/8$217
This CheapOair deal was found by Cheapflights users on 6/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/242:33 pm
PDX
-
BOI
Nonstop1h 22m
Alaska Airlines
Sun 9/276:00 am
BOI
-
PDX
Nonstop1h 20m
Alaska Airlines
Deal found 6/7$217
This Southwest deal was found by Cheapflights users on 6/8. 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.
Sat 8/156:00 am
PDX
-
BOI
1 stop6h 00m
Southwest
Tue 8/1811:40 am
BOI
-
PDX
1 stop4h 45m
Southwest
Deal found 6/8$218
This Southwest deal was found by Cheapflights users on 6/9. 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 8/114:00 pm
PDX
-
BOI
1 stop5h 25m
Southwest
Sun 8/164:45 pm
BOI
-
PDX
1 stop8h 10m
Southwest
Deal found 6/9$221
This United Airlines deal was found by Cheapflights users on 6/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/189:00 am
PDX
-
BOI
1 stop5h 31m
United Airlines
Tue 8/257:05 pm
BOI
-
PDX
1 stop4h 40m
United Airlines
Deal found 6/5$222
This CheapOair deal was found by Cheapflights users on 6/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/94:18 pm
GEG
-
BOI
Nonstop1h 08m
Alaska Airlines
Sun 7/129:23 pm
BOI
-
GEG
Nonstop1h 10m
Alaska Airlines
Deal found 6/9$227

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 June 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$197
(Delta)

One-way from

$84
(Southwest)

Popular in

June

Cheapest in

January

Average price

$287

Good round-trip deal

$287 or less

Good one-way deal

$163 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. 21% potential increase in price ($57 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
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 June 9, 2026.
Use the filters below to find and compare flights from Washington to Boise that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

SpokaneBoise

GEG - BOI

GEGBOI

Spokane

Wed 7/15

4:19 pm-6:27 pm

Nonstop1h 08m

Boise Air Term. Gowen Fld

Wed 7/22

6:53 pm-7:01 pm

Nonstop1h 08m

$227

SpokaneBoise

GEG - BOI

GEGBOI

Spokane

Fri 7/17

5:25 am-11:45 am

1 stop5h 20m

Boise Air Term. Gowen Fld

Fri 7/24

5:55 pm-1:25 am

1 stop8h 30m

$243

PortlandBoise

PDX - BOI

PDXBOI

Portland

Sat 8/1

9:00 am-3:35 pm

1 stop5h 35m

Boise Air Term. Gowen Fld

Mon 8/3

5:55 pm-1:25 am

1 stop8h 30m

$243

PortlandBoise

PDX - BOI

PDXBOI

Portland

Tue 7/7

5:25 am-12:30 pm

1 stop6h 05m

Boise Air Term. Gowen Fld

Tue 7/14

5:30 am-10:30 am

1 stop6h 00m

$243

SpokaneBoise

GEG - BOI

GEGBOI

Spokane

Thu 7/23

6:10 pm-1:50 am

1 stop6h 40m

Boise Air Term. Gowen Fld

Sat 7/25

6:00 pm-11:25 pm

1 stop6h 25m

$245

SpokaneBoise

GEG - BOI

GEGBOI

Spokane

Fri 9/11

10:50 am-6:35 pm

1 stop6h 45m

Boise Air Term. Gowen Fld

Mon 9/14

3:29 pm-7:06 pm

1 stop4h 37m

$247

SpokaneBoise

GEG - BOI

GEGBOI

Spokane

Fri 7/3

4:30 pm-10:28 pm

1 stop4h 58m

Boise Air Term. Gowen Fld

Fri 7/10

6:51 am-12:11 pm

1 stop6h 20m

$257

SpokaneBoise

GEG - BOI

GEGBOI

Spokane

Thu 7/9

5:37 pm-10:18 pm

1 stop3h 41m

Boise Air Term. Gowen Fld

Sun 7/12

12:20 pm-4:55 pm

1 stop5h 35m

$257

SpokaneBoise

GEG - BOI

GEGBOI

Spokane

Sat 8/8

6:15 am-12:15 pm

1 stop5h 00m

Boise Air Term. Gowen Fld

Mon 8/10

6:00 am-11:40 am

1 stop6h 40m

$262

PortlandBoise

PDX - BOI

PDXBOI

Portland

Fri 7/3

6:00 pm-1:10 am

1 stop6h 10m

Boise Air Term. Gowen Fld

Fri 7/10

5:55 pm-1:25 am

1 stop8h 30m

$265

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

Showing 1-10 of 60 resultsSorted by cheapest first
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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, September is the cheapest month in which you can book a flight from State of Washington to Boise (average of $59). Flying from State of Washington to Boise in July is currently the most expensive (average of $167). 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 June 9, 2026.

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 evening tend to be the most expensive. A flight in the morning could potentially save you up to 47% on airfare.

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 June 9, 2026.

The most flights from USWA to BOI are scheduled on a Tuesday (47 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (10 on average).

How much does it cost to fly round-trip from State of Washington to Boise?

How far ahead should I book a flight from State of Washington to Boise?

The price you pay for your flight from State of Washington to Boise may vary depending on when you book. For the best chance of a lower fare, look to book 61 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 June 8, 2026.

Travelers seeking maximum savings on their State of Washington to Boise flight should consider departing on Tuesday at noon when fares are most often at their lowest. Sunday evenings 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 9 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 08m. Fly via Alaska Airlines, Southwest, or Delta to get the fastest option. Airlines will cover a distance of 287 mi. This flight may include one or multiple stops.

  • 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: Japan Airlines (93%), Aeromexico (92%), WestJet( 91%).

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

    While on average a flight from State of Washington to Boise is generally $294, our data shows the cheapest flight currently is $118. When looking at the most popular route, (Seattle/Tacoma Intl - Boise Air Term. Gowen Fld), you can expect to pay $197 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, September is the cheapest month in which you can book a flight from State of Washington to Boise (average of $59). Flying from State of Washington to Boise in July is currently the most expensive (average of $167). 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
Meridian
Nampa
Caldwell
Ontario
McCall

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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 June 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$79Average$204FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$105Average$271FlexibilityNo cancel feeOn-time75%
Hawaiian AirlinesCheapest$117Average$248FlexibilityNo cancel feeOn-time85%

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