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$94+ Cheap flights from Boise (BOI) to Washington

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 5/27. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SEA
maj 21 — maj 281
czw. 5/21
czw. 5/28
1 adult, Economy
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Cheap flight deals from Boise to Washington

Cheapest flights from Boise to Washington
Explore the most affordable flight options available from Boise to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on Kwiecień 21, 2026.

This Delta deal was found by Cheapflights users on 4/16. 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.
śr. 5/1310:39 am
BOI
-
SEA
Nonstop1h 57m
Delta
sob. 5/165:59 pm
SEA
-
BOI
Nonstop1h 35m
Delta
Deal found 4/16$177
This Alaska Airlines deal was found by Cheapflights users on 4/17. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
wt. 5/125:50 am
BOI
-
PDX
Nonstop1h 24m
Alaska Airlines
sob. 5/169:35 pm
PDX
-
BOI
Nonstop1h 23m
Alaska Airlines
Deal found 4/17$177
This Delta deal was found by Cheapflights users on 4/19. 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.
ndz. 5/175:45 am
BOI
-
SEA
Nonstop1h 44m
Delta
sob. 5/232:35 pm
SEA
-
BOI
Nonstop1h 34m
Delta
Deal found 4/19$187
This United Airlines deal was found by Cheapflights users on 4/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sob. 5/164:20 pm
BOI
-
PDX
1 stop5h 38m
United Airlines
sob. 5/2311:16 am
PDX
-
BOI
1 stop4h 28m
United Airlines
Deal found 4/19$187
This Trip.com deal was found by Cheapflights users on 4/20. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
pon. 5/184:19 pm
BOI
-
SEA
Nonstop1h 40m
Alaska Airlines
pon. 5/258:26 am
SEA
-
BOI
Nonstop1h 37m
Alaska Airlines
Deal found 4/20$192
This Southwest deal was found by Cheapflights users on 4/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
pon. 9/219:05 am
BOI
-
GEG
1 stop4h 30m
Southwest
wt. 9/225:45 am
GEG
-
BOI
1 stop7h 15m
Southwest
Deal found 4/20$192
This Delta deal was found by Cheapflights users on 4/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
pt. 5/159:16 pm
BOI
-
SEA
Nonstop1h 49m
Delta
ndz. 5/177:15 am
SEA
-
BOI
Nonstop1h 39m
Delta
Deal found 4/20$197
This Delta deal was found by Cheapflights users on 4/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sob. 6/66:00 pm
BOI
-
PDX
1 stop4h 16m
Delta
ndz. 6/75:30 am
PDX
-
BOI
1 stop3h 26m
Delta
Deal found 4/20$197
This Southwest deal was found by Cheapflights users on 4/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
pon. 5/117:55 pm
BOI
-
PDX
1 stop6h 00m
Southwest
wt. 5/127:00 am
PDX
-
BOI
1 stop8h 25m
Southwest
Deal found 4/20$202
This Southwest deal was found by Cheapflights users on 4/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
wt. 8/113:30 pm
BOI
-
SEA
1 stop6h 30m
Southwest
wt. 8/183:35 pm
SEA
-
BOI
1 stop5h 40m
Southwest
Deal found 4/20$204
This Southwest deal was found by Cheapflights users on 4/18. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sob. 5/96:05 am
BOI
-
SEA
1 stop7h 10m
Southwest
ndz. 5/105:00 am
SEA
-
BOI
1 stop3h 55m
Southwest
Deal found 4/18$207
This Alaska Airlines deal was found by Cheapflights users on 4/17. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
pon. 5/114:55 pm
BOI
-
PUW
Nonstop0h 59m
Alaska Airlines
wt. 5/125:31 pm
PUW
-
BOI
Nonstop0h 59m
Alaska Airlines
Deal found 4/17$207

Find flight deals from Boise to Washington

Keep the following information in mind while searching for Boise to Washington flight deals. Data was last updated Kwiecień 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$177
(Delta)

One-way from

$94
(United Airlines)

Popular in

June

Cheapest in

January

Average price

$172

Good round-trip deal

$217 or less

Good one-way deal

$194 or less
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Seattle/Tacoma Intl flights.
Search Deals
From Boise Air Term. Gowen Fld to Washington
Search Deals
One-way flight from Boise Air Term. Gowen Fld to Washington
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($21 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a round-trip flight from Boise Air Term. Gowen Fld to Washington.
Search Deals
Price to beat on a one-way flight from Boise Air Term. Gowen Fld to Washington.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boise to Washington 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 Kwiecień 21, 2026.
Use the filters below to find and compare flights from Boise to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

wt. 5/26

12:15 pm-12:55 pm

Nonstop1h 40m

Seattle/Tacoma Intl

ndz. 5/31

5:59 pm-8:34 pm

Nonstop1h 35m

$187

BoisePortland

BOI - PDX

BOIPDX

Boise Air Term. Gowen Fld

sob. 6/6

6:00 pm-9:16 pm

1 stop4h 16m

Portland

ndz. 6/7

5:30 am-9:56 am

1 stop3h 26m

$197

BoisePortland

BOI - PDX

BOIPDX

Boise Air Term. Gowen Fld

śr. 5/20

5:45 am-8:37 am

1 stop3h 52m

Portland

czw. 5/28

7:05 am-2:43 pm

1 stop6h 38m

$197

BoisePortland

BOI - PDX

BOIPDX

Boise Air Term. Gowen Fld

pt. 5/15

3:14 pm-7:26 pm

1 stop5h 12m

Portland

ndz. 5/17

5:30 am-9:54 am

1 stop3h 24m

$207

BoisePortland

BOI - PDX

BOIPDX

Boise Air Term. Gowen Fld

czw. 5/21

6:00 pm-9:18 pm

1 stop4h 18m

Portland

pon. 5/25

7:05 am-2:43 pm

1 stop6h 38m

$207

BoisePortland

BOI - PDX

BOIPDX

Boise Air Term. Gowen Fld

pt. 6/5

9:18 pm-11:53 pm

1 stop3h 35m

Portland

pon. 6/8

5:30 am-9:56 am

1 stop3h 26m

$207

BoiseSpokane

BOI - GEG

BOIGEG

Boise Air Term. Gowen Fld

wt. 7/7

9:23 pm-9:33 pm

Nonstop1h 10m

Spokane

sob. 7/11

4:05 pm-6:13 pm

Nonstop1h 08m

$217

BoiseSpokane

BOI - GEG

BOIGEG

Boise Air Term. Gowen Fld

śr. 6/3

7:00 am-7:07 am

Nonstop1h 07m

Spokane

sob. 6/6

9:08 am-11:16 am

Nonstop1h 08m

$217

BoiseSpokane

BOI - GEG

BOIGEG

Boise Air Term. Gowen Fld

czw. 6/4

2:50 pm-2:58 pm

Nonstop1h 08m

Spokane

pon. 6/8

7:11 pm-9:17 pm

Nonstop1h 06m

$217

BoiseSpokane

BOI - GEG

BOIGEG

Boise Air Term. Gowen Fld

pt. 5/15

7:00 am-7:07 am

Nonstop1h 07m

Spokane

pt. 5/22

7:11 pm-9:17 pm

Nonstop1h 06m

$217

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/20

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Boise to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Boise 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 Boise to Washington

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

Currently, March is the cheapest month in which you can book a flight from Boise to State of Washington (average of $59). Flying from Boise to State of Washington in July is currently the most expensive (average of $147). 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 BOI to WA?

Find hourly flight availability from Boise to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated Kwiecień 21, 2026.

One of the essential ways to save on airfare from Boise to State of Washington 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 11% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Boise to Washington. Price data was last updated on April 18, 2026.

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

Weekly flight availability from Boise to State of Washington

Explore weekly flight availability from Boise to Washington. 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 Kwiecień 21, 2026.

The most flights from BOI to USWA are scheduled on a Monday (51 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (18 on average).

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

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington. Reviews last updated Kwiecień 21, 2026.
Get a feel of what it's like to fly with Alaska Airlines,Delta, andHawaiian Airlines from Boise to Washington by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
12,269 reviews

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.0

Entertainment

7.0

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
Alaska Airlines
7.9
Good
12,269 reviews
Alaska Airlines
7.9
Good
12,269 reviews

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.0

Entertainment

7.0

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
Delta
7.9
Good
8,434 reviews
Alaska Airlines
7.9
Good
12,269 reviews

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.0

Entertainment

7.0

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
Hawaiian Airlines
7.8
Good
2,837 reviews
Alaska Airlines
7.9
Good
12,269 reviews

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.0

Entertainment

7.0

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well

Related info for your journey

Find useful and relevant information for your journey from Boise to Washington. 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 from for flights from Boise to Washington?

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

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

    This flight path from Boise Air Term. Gowen Fld to Washington was viewed by 76 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 Boise to State of Washington?

    Airlines like Delta and Alaska Airlines fly from Boise to State of Washington in about 1h 10m. The time it takes to get you to your destination is usually consistent. Boise and State of Washington are separated by a distance of 287 mi. Most flights are nonstop.

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

    The cheapest airline one-way is Alaska Airlines, with whom users have recently found tickets for as low as $69. However, be on the lookout for offers from Delta and Southwest, as they are both options that can get you from Boise to State of Washington for a low price.

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

    The most popular route from Boise to State of Washington is Boise Air Term. Gowen Fld - Seattle/Tacoma Intl. You may also consider Boise Air Term. Gowen Fld - Portland or Boise Air Term. Gowen Fld - Spokane.

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

    The top 3 most reliable airlines when flying from Boise to State of Washington are Condor (98%), Icelandair (94%) and Air Tahiti Nui (93%).

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

    On average you can expect to pay $709 for a flight from Boise to State of Washington. The cheapest flight overall is $98 while the most popular route, (Boise Air Term. Gowen Fld - Seattle/Tacoma Intl) is currently priced at $177.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Boise to Washington 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 Boise to State of Washington?

    Currently, March is the cheapest month in which you can book a flight from Boise to State of Washington (average of $59). Flying from Boise to State of Washington in July is currently the most expensive (average of $147). 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

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Top 3 airlines flying from Boise to Washington

Discover the top 3 airlines that operate flights from Boise to Washington. 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 Kwiecień 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$96Average$206FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$99Average$234FlexibilityNo cancel feeOn-time75%
Hawaiian AirlinesCheapest$117Average$237FlexibilityNo cancel feeOn-time85%

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