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$61+ Cheap flights from Seattle to Boise (SEA - 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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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Boise Air Term. Gowen Fld are usually found in January or April, booked 62 days in advance, depart on a Thursday or Friday and return on a Friday

Cheap flight deals from Seattle to Boise

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Boise (BOI). 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 14, 2025.

Round-trip from

$127
(Hawaiian Airlines)

One-way from

$61
(iWofly)

Popular in

December

Cheapest in

January

Average price

$197

Good round-trip deal

$157 or less

Good one-way deal

$118 or less
From Seattle/Tacoma Intl to Boise Air Term. Gowen Fld
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One-way flight from Seattle/Tacoma Intl 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 Seattle/Tacoma Intl to Boise Air Term. Gowen Fld.
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Price to beat on a one-way flight from Seattle/Tacoma Intl to Boise Air Term. Gowen Fld.
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Find flight deals from Seattle to Boise

Cheapest flights from Seattle to Boise
Explore the most affordable flight options available from Seattle 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 8/14. 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 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 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
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/25:00 amSEA - BOI
1 stop5h 55mSouthwest
Tue 10/75:30 pmBOI - SEA
1 stop6h 15mSouthwest
Deal found 8/13$149
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/143:50 pmSEA - BOI
1 stop5h 04mMultiple Airlines
Sun 10/1912:28 pmBOI - SEA
1 stop8h 20mMultiple Airlines
Deal found 8/13$152
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.
Fri 9/53:42 pmSEA - BOI
1 stop5h 15mHawaiian Airlines
Sat 9/66:59 pmBOI - SEA
1 stop3h 03mHawaiian Airlines
Deal found 8/13$156

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle 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 Seattle to Boise that are best for you.

Fly from

Seattle

Fly to

Boise

Route

Depart

Return

Price

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

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Sat 9/27

7:50 am-12:03 pm

1 stop3h 13m

Boise Air Term. Gowen Fld

Sat 9/27

4:00 pm-6:45 pm

1 stop3h 45m

$131

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Sat 9/13

2:48 pm-6:37 pm

1 stop2h 49m

Boise Air Term. Gowen Fld

Sat 9/20

4:00 pm-6:45 pm

1 stop3h 45m

$136

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Sat 9/6

3:51 pm-6:16 pm

Nonstop1h 25m

Boise Air Term. Gowen Fld

Sun 9/7

8:00 am-8:35 am

Nonstop1h 35m

$136

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Wed 9/17

2:48 pm-6:37 pm

1 stop2h 49m

Boise Air Term. Gowen Fld

Sat 9/20

4:00 pm-8:35 pm

1 stop5h 35m

$136

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Wed 11/5

11:10 am-6:34 pm

1 stop6h 24m

Boise Air Term. Gowen Fld

Sat 11/8

6:45 pm-8:55 pm

1 stop3h 10m

$136

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Sat 9/6

5:45 pm-8:20 pm

Nonstop1h 35m

Boise Air Term. Gowen Fld

Sun 9/7

2:00 pm-2:40 pm

Nonstop1h 40m

$137

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 20 results
1
2

Best time to book a flight from Seattle to Boise

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

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

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

Booking 62 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Boise. 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 Seattle to Boise?

Currently, October is the cheapest month in which you can book a flight from Seattle to Boise (average of $314). Flying from Seattle 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 SEA to BOI?

Find hourly flight availability from Seattle 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.

It’s typically best to fly out from Seattle to Boise in the afternoon. Doing so could potentially save you 7% on the flight price compared to flying at noon, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from Seattle to Boise. Price data was last updated on August 10, 2025.

Travelers seeking maximum savings on their Seattle to Boise 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.

Weekly flight availability from Seattle to Boise

Explore weekly flight availability from Seattle 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 SEA 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).

Reviews of airlines servicing Boise

Get insights into the airlines that provide service to Boise. 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 Boise. Reviews last updated August 14, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta, and Hawaiian Airlines from Seattle to Boise to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Crew

8.5

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Crew

8.5

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Crew

8.5

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,656 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Crew

8.5

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

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

    To fly from Seattle to Boise, you need to book a flight from Seattle/Tacoma Intl (SEA) to Air Term. Gowen Fld (BOI). Nonstop flights to Boise Air Term. Gowen Fld from Seattle/Tacoma Intl take 1h 25m on average. When it comes time to book airfare, you have a few options: there are 57 outbound flights from Seattle/Tacoma Intl to Air Term. Gowen Fld offered by 3 different airlines.

  • How popular is this Seattle to Boise flight route?

    Flights from Seattle/Tacoma Intl to Boise Air Term. Gowen Fld have been viewed 14 times in the past calendar month.

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

    Our cheapest airline available from Seattle to Boise is Hawaiian Airlines. Our recent data shows that you can find tickets from as low as $104 on this airline. Additional options worth looking into are Delta and Alaska Airlines, starting at $111 and $136 round-trip. Users have found that Hawaiian Airlines is 50% cheaper than the other options available to this destination.

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

    Before booking your flight to Boise from Seattle, 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 Seattle to Boise?

    Looking for the cheapest flight from Seattle to Boise? While on average our users pay $228, our data indicates the cheapest price to be $88. The most popular route (Seattle/Tacoma Intl - Boise Air Term. Gowen Fld), is priced around $117.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Seattle to Boise (average of $314). Flying from Seattle 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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Top 3 airlines flying from Seattle to Boise

Discover the top 3 airlines that operate flights from Seattle 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$217FlexibilityNo cancel feeOn-time85%
DeltaCheapest$111Average$206FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$136Average$231FlexibilityNo cancel feeOn-time75%

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