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Boise

$82+ 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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BOI
Aug 27 — Sep 31
Thu 8/27
Thu 9/3
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 July 28, 2026.

This Delta deal was found by Cheapflights users on 7/28. 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 9/262:45 pm
SEA
-
BOI
Nonstop1h 34m
Delta
Tue 9/293:28 pm
BOI
-
SEA
Nonstop1h 42m
Delta
Deal found 7/28$157
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 11/143:10 pm
GEG
-
BOI
Nonstop1h 07m
Alaska Airlines
Tue 11/178:42 pm
BOI
-
GEG
Nonstop1h 11m
Alaska Airlines
Deal found 7/28$167
This Delta deal was found by Cheapflights users on 7/28. 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 9/54:10 pm
SEA
-
BOI
Nonstop1h 38m
Delta
Mon 9/76:49 am
BOI
-
SEA
Nonstop1h 46m
Delta
Deal found 7/28$167
This Delta deal was found by Cheapflights users on 7/28. 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 9/163:59 pm
GEG
-
BOI
1 stop5h 35m
Delta
Sat 9/193:28 pm
BOI
-
GEG
1 stop4h 47m
Delta
Deal found 7/28$177
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 10/25:55 pm
SEA
-
BOI
Nonstop1h 30m
Alaska Airlines
Mon 10/56:43 am
BOI
-
SEA
Nonstop1h 37m
Alaska Airlines
Deal found 7/28$177
This Priceline deal was found by Cheapflights users on 7/27. 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.
Sat 9/510:47 am
PDX
-
BOI
Nonstop1h 25m
Alaska Airlines
Wed 9/96:00 am
BOI
-
PDX
Nonstop1h 20m
Alaska Airlines
Deal found 7/27$177
This Southwest deal was found by Cheapflights users on 7/28. 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 9/261:55 pm
SEA
-
BOI
2 stops7h 10m
Southwest
Tue 9/294:45 pm
BOI
-
SEA
1 stop6h 00m
Southwest
Deal found 7/28$182
This Priceline deal was found by Cheapflights users on 7/27. 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.
Fri 9/117:00 am
GEG
-
BOI
Nonstop1h 09m
Alaska Airlines
Sun 9/138:38 pm
BOI
-
GEG
Nonstop1h 08m
Alaska Airlines
Deal found 7/27$187
This Southwest deal was found by Cheapflights users on 7/28. 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 10/216:15 am
SEA
-
BOI
1 stop7h 30m
Southwest
Thu 10/226:50 pm
BOI
-
SEA
1 stop4h 40m
Southwest
Deal found 7/28$187
This Priceline deal was found by Cheapflights users on 7/27. 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.
Sat 9/52:53 pm
PDX
-
BOI
Nonstop1h 22m
Alaska Airlines
Fri 9/114:27 pm
BOI
-
PDX
Nonstop1h 18m
Alaska Airlines
Deal found 7/27$187
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 9/268:41 am
SEA
-
BOI
1 stop10h 39m
Alaska Airlines
Tue 9/294:20 pm
BOI
-
SEA
Nonstop1h 36m
Alaska Airlines
Deal found 7/28$190
This Alaska Airlines deal was found by Cheapflights users on 7/25. 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 8/261:04 pm
SEA
-
BOI
Nonstop1h 27m
Alaska Airlines
Tue 9/18:03 am
BOI
-
SEA
Nonstop1h 39m
Alaska Airlines
Deal found 7/25$192

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 July 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$157
(Travelocity)

One-way from

$82
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$327

Good round-trip deal

$187 or less

Good one-way deal

$143 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. 23% potential increase in price ($68 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 July 28, 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

Sat 11/14

3:10 pm-5:17 pm

Nonstop1h 07m

Boise Air Term. Gowen Fld

Tue 11/17

8:42 pm-8:53 pm

Nonstop1h 11m

$167

PortlandBoise

PDX - BOI

PDXBOI

Portland

Sat 9/5

10:47 am-1:12 pm

Nonstop1h 25m

Boise Air Term. Gowen Fld

Fri 9/11

8:25 pm-8:45 pm

Nonstop1h 20m

$207

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Mon 8/24

12:35 pm-3:18 pm

Nonstop1h 43m

Boise Air Term. Gowen Fld

Mon 8/31

5:59 pm-6:37 pm

Nonstop1h 38m

$217

PortlandBoise

PDX - BOI

PDXBOI

Portland

Wed 9/9

4:00 pm-10:30 pm

1 stop5h 30m

Boise Air Term. Gowen Fld

Sat 9/12

6:40 am-11:35 am

1 stop5h 55m

$217

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Thu 10/1

3:41 pm-6:07 pm

Nonstop1h 26m

Boise Air Term. Gowen Fld

Mon 10/5

6:43 am-7:20 am

Nonstop1h 37m

$217

PortlandBoise

PDX - BOI

PDXBOI

Portland

Thu 8/27

9:33 pm-11:55 pm

Nonstop1h 22m

Boise Air Term. Gowen Fld

Mon 8/31

8:25 pm-8:45 pm

Nonstop1h 20m

$217

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Mon 9/28

9:45 am-3:05 pm

1 stop4h 20m

Boise Air Term. Gowen Fld

Wed 9/30

3:40 pm-9:15 pm

1 stop6h 35m

$222

PortlandBoise

PDX - BOI

PDXBOI

Portland

Tue 9/1

7:00 am-3:31 pm

1 stop7h 31m

Boise Air Term. Gowen Fld

Sun 9/6

6:15 am-10:11 am

1 stop4h 56m

$227

PortlandBoise

PDX - BOI

PDXBOI

Portland

Tue 10/13

5:30 am-9:54 am

1 stop3h 24m

Boise Air Term. Gowen Fld

Sat 10/17

3:36 pm-8:00 pm

1 stop5h 24m

$227

SpokaneBoise

GEG - BOI

GEGBOI

Spokane

Sat 8/22

2:40 pm-8:55 pm

1 stop5h 15m

Boise Air Term. Gowen Fld

Sat 8/29

6:10 am-1:00 pm

2 stops7h 50m

$232

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/25

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, January is the cheapest month in which you can book a flight from State of Washington to Boise (average of $162). Flying from State of Washington to Boise in June is currently the most expensive (average of $321). 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 July 28, 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 44% 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 July 28, 2026.

The most flights from USWA to BOI are scheduled on a Tuesday (51 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (16 on average).

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

Airfare is below average for this route at the moment.
State of Washington to Boise flights typically cost between $167 and $397 in October.
The cheapest round-trip price found within the last 5 days was $157 on Alaska Airlines (Oct 21-Oct 27).

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 July 25, 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 afternoons 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, Delta, or Southwest 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: Aeromexico (91%), Japan Airlines (88%), Icelandair( 87%).

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

    While on average a flight from State of Washington to Boise is generally $327, our data shows the cheapest flight currently is $104. When looking at the most popular route, (Seattle/Tacoma Intl - Boise Air Term. Gowen Fld), you can expect to pay $187 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 $162). Flying from State of Washington to Boise in June is currently the most expensive (average of $321). 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
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Meridian
Nampa
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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 July 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$79Average$204FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$104Average$278FlexibilityNo cancel feeOn-time75%
Hawaiian AirlinesCheapest$127Average$297FlexibilityNo cancel feeOn-time85%

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