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$68+ Cheap flights from Boise to Seattle (BOI - SEA)

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 9/20. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SEA
Aug 26 — Sep 21
Tue 8/26
Tue 9/2
1 adult, Economy
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Cheapflights Tip: The best prices from Boise Air Term. Gowen Fld to Seattle/Tacoma Intl are usually found in October or February, booked 58 days in advance, depart on a Friday or Thursday and return on a Thursday

Cheap flight deals from Boise to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 21, 2025.

Round-trip from

$127
(Hawaiian Airlines)

One-way from

$68
(Hawaiian Airlines)

Popular in

November

Cheapest in

October

Average price

$197

Good round-trip deal

$260 or less

Good one-way deal

$166 or less
From Boise Air Term. Gowen Fld to Seattle/Tacoma Intl
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One-way flight from Boise Air Term. Gowen Fld to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 3% potential increase in price ($8 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($3 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 Boise Air Term. Gowen Fld to Seattle/Tacoma Intl.
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Price to beat on a one-way flight from Boise Air Term. Gowen Fld to Seattle/Tacoma Intl.
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Find flight deals from Boise to Seattle

Cheapest flights from Boise to Seattle
Explore the most affordable flight options available from Boise to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 21, 2025.

This Hawaiian Airlines deal was found by Cheapflights users on 8/19. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/94:34 pmBOI - SEA
Nonstop1h 35mHawaiian Airlines
Wed 9/173:42 pmSEA - BOI
1 stop5h 15mHawaiian Airlines
Deal found 8/19$127
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 9/136:35 amBOI - SEA
Nonstop1h 39mHawaiian Airlines
Sun 9/148:05 amSEA - BOI
Nonstop1h 32mHawaiian Airlines
Deal found 8/19$134
This Alaska Airlines deal was found by Cheapflights users on 8/19. 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.
Tue 9/94:00 pmBOI - SEA
1 stop5h 35mAlaska Airlines
Wed 9/172:48 pmSEA - BOI
1 stop6h 09mAlaska Airlines
Deal found 8/19$136
This Delta deal was found by Cheapflights users on 8/21. 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 9/134:20 pmBOI - SEA
Nonstop1h 40mDelta
Fri 9/1910:40 amSEA - BOI
Nonstop1h 43mDelta
Deal found 8/21$137
This Alaska Airlines deal was found by Cheapflights users on 8/21. 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 9/132:34 pmBOI - SEA
1 stop4h 19mAlaska Airlines
Sat 9/138:10 pmSEA - BOI
Nonstop1h 40mAlaska Airlines
Deal found 8/21$141
This Alaska Airlines deal was found by Cheapflights users on 8/21. 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 9/136:59 pmBOI - SEA
1 stop3h 03mAlaska Airlines
Wed 9/1712:25 pmSEA - BOI
Nonstop1h 35mAlaska Airlines
Deal found 8/21$147
This Alaska Airlines deal was found by Cheapflights users on 8/20. 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 10/291:40 pmBOI - SEA
1 stop20h 14mAlaska Airlines
Thu 10/3012:39 pmSEA - BOI
Nonstop1h 33mAlaska Airlines
Deal found 8/20$151
This Alaska Airlines deal was found by Cheapflights users on 8/21. 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.
Mon 9/156:59 pmBOI - SEA
1 stop3h 03mAlaska Airlines
Wed 9/173:42 pmSEA - BOI
1 stop5h 15mAlaska Airlines
Deal found 8/21$156
This Delta deal was found by Cheapflights users on 8/21. 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.
Fri 9/125:45 amBOI - SEA
Nonstop1h 50mDelta
Mon 9/157:46 pmSEA - BOI
Nonstop1h 36mDelta
Deal found 8/21$157
This Kissandfly.com deal was found by Cheapflights users on 8/20. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/134:00 pmBOI - SEA
1 stop5h 35mMultiple Airlines
Sun 9/147:00 amSEA - BOI
Nonstop1h 28mMultiple Airlines
Deal found 8/20$161
This Southwest deal was found by Cheapflights users on 8/21. 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.
Thu 11/202:30 pmBOI - SEA
1 stop6h 15mSouthwest
Thu 11/275:40 amSEA - BOI
2 stops11h 40mSouthwest
Deal found 8/21$162

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boise to Seattle 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 21, 2025.
Use the filters below to find and compare flights from Boise to Seattle that are best for you.

Fly from

Boise

Fly to

Seattle

Route

Depart

Return

Price

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Tue 9/9

4:34 pm-5:09 pm

Nonstop1h 35m

Seattle/Tacoma Intl

Wed 9/17

3:42 pm-9:57 pm

1 stop5h 15m

$127

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Tue 9/16

5:45 pm-6:22 pm

Nonstop1h 37m

Seattle/Tacoma Intl

Tue 9/23

3:42 pm-9:57 pm

1 stop5h 15m

$127

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Sat 9/13

6:59 pm-9:02 pm

1 stop3h 03m

Seattle/Tacoma Intl

Tue 9/16

9:40 pm-12:08 am

Nonstop1h 28m

$127

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Sat 9/13

6:35 am-7:14 am

Nonstop1h 39m

Seattle/Tacoma Intl

Sun 9/14

8:05 am-10:37 am

Nonstop1h 32m

$134

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Sat 9/13

6:59 pm-10:03 pm

1 stop4h 04m

Seattle/Tacoma Intl

Tue 9/16

3:42 pm-9:57 pm

1 stop5h 15m

$136

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Sat 9/13

6:59 pm-10:03 pm

1 stop4h 04m

Seattle/Tacoma Intl

Wed 9/17

3:42 pm-9:57 pm

1 stop5h 15m

$136

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Tue 9/9

4:00 pm-8:35 pm

1 stop5h 35m

Seattle/Tacoma Intl

Wed 9/17

2:48 pm-9:57 pm

1 stop6h 09m

$136

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Tue 9/16

4:00 pm-6:45 pm

1 stop3h 45m

Seattle/Tacoma Intl

Tue 9/23

2:48 pm-9:57 pm

1 stop6h 09m

$136

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Tue 9/16

6:59 pm-9:02 pm

1 stop3h 03m

Seattle/Tacoma Intl

Wed 9/17

3:42 pm-9:57 pm

1 stop5h 15m

$136

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Sat 10/4

1:50 pm-7:10 pm

1 stop6h 20m

$68

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/20

Showing 1-10 of 16 results
1
2

Best time to book a flight from Boise to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle 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 Seattle

How far ahead should I book a flight from Boise to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Boise to Seattle. Price data was last updated on August 8, 2025.

Booking 58 days in advance of your planned departure date is, on average, the best time to get cheap flights from Boise to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Boise to Seattle?

Currently, January is the cheapest month in which you can book a flight from Boise to Seattle (average of $238). Flying from Boise to Seattle in June is currently the most expensive (average of $388). 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 SEA?

Find hourly flight availability from Boise to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 21, 2025.

When flying from Boise to Seattle, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 21% versus a flight in the afternoon.

What is the cheapest day to fly from Boise to Seattle?

Use this chart to determine the cheapest time to fly round-trip from Boise to Seattle. Price data was last updated on August 17, 2025.

Travelers seeking maximum savings on their Boise to Seattle flight should consider departing on Thursday evenings 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.

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated August 21, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Delta, and Hawaiian Airlines from Boise to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Hawaiian Airlines
7.8
Good
2,672 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

Related info for your journey

Find useful and relevant information for your journey from Boise to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Boise to Seattle?

    If you book a flight from Boise to Seattle, you will be flying from Air Term. Gowen Fld to Seattle/Tacoma Intl. Flights to Seattle/Tacoma Intl (SEA) from Boise Air Term. Gowen Fld (BOI) take 1h 35m for a nonstop flight. There are 59 flights from Air Term. Gowen Fld to Seattle per day from 3 airlines.

  • How popular is this Boise to Seattle flight route?

    Within the past month, 78 users have taken a look at flights from Boise Air Term. Gowen Fld to Seattle/Tacoma Intl.

  • How long is the flight from Boise to Seattle?

    For as low as $127, Hawaiian Airlines can have you in Seattle from Boise in 1h 35m. The distance from Boise to Seattle is about 398 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Boise to Seattle round-trip?

    Currently priced at $117, Delta will fly you from Boise to Seattle and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Hawaiian Airlines and Alaska Airlines - these airlines can fly you to your destination from $117 and $129, respectively. Delta is 39% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the most reliable airlines from Boise to Seattle?

    Consider Singapore Airlines (95%), Aeromexico (86%) or Delta (84%) when booking your flight. These represent the most reliable airlines when flying from Boise to Seattle.

  • What are the cheapest flights from Boise to Seattle?

    On average you can expect to pay $1,006 for a flight from Boise to Seattle. The cheapest flight overall is $88 while the most popular route, (Boise Air Term. Gowen Fld - Seattle/Tacoma Intl) is currently priced at $110.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Boise to Seattle 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 Seattle?

    Currently, January is the cheapest month in which you can book a flight from Boise to Seattle (average of $238). Flying from Boise to Seattle in June is currently the most expensive (average of $388). 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 Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Lacey
Ocean Shores
Lynnwood
Leavenworth
Renton
Olympia
Kent
Cle Elum
Puyallup
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline
Federal Way
Shelton

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Boise to Seattle

Discover the top 3 airlines that operate flights from Boise to Seattle. 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 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$117Average$197FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$117Average$197FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$129Average$200FlexibilityNo cancel feeOn-time75%

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