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$76+ 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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BOI
Jul 5 — Jul 121
Sat 7/5
Sat 7/12
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 September, booked 88 days in advance, depart on a Thursday or Saturday and return on a Thursday

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 June 30, 2025.

Round-trip from

$167
(Hawaiian Airlines)

One-way from

$76
(Southwest)

Popular in

December

Cheapest in

January

Average price

$242

Good round-trip deal

$177 or less

Good one-way deal

$98 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. 12% potential increase in price ($30 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 30, 2025.

This Hawaiian Airlines deal was found by Cheapflights users on 6/28. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/308:04 amSEA - BOI
1 stop2h 59mHawaiian Airlines
Mon 9/19:00 amBOI - SEA
Nonstop1h 38mHawaiian Airlines
Deal found 6/28$167
This Southwest deal was found by Cheapflights users on 6/28. 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.
Fri 8/1511:50 amSEA - BOI
1 stop6h 15mSouthwest
Mon 8/186:15 amBOI - SEA
2 stops8h 20mSouthwest
Deal found 6/28$169
This Alaska Airlines deal was found by Cheapflights users on 6/28. 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.
Tue 10/143:45 pmSEA - BOI
Nonstop1h 25mAlaska Airlines
Thu 10/161:42 pmBOI - SEA
Nonstop1h 33mAlaska Airlines
Deal found 6/28$177
This Delta deal was found by Cheapflights users on 6/30. 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 7/255:45 pmSEA - BOI
Nonstop1h 35mDelta
Fri 8/17:45 pmBOI - SEA
Nonstop1h 45mDelta
Deal found 6/30$197
This United Airlines deal was found by Cheapflights users on 6/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/147:00 amSEA - BOI
1 stop5h 48mUnited Airlines
Tue 10/212:12 pmBOI - SEA
2 stops8h 03mUnited Airlines
Deal found 6/28$242
This FlightHub deal was found by Cheapflights users on 6/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/175:30 pmSEA - BOI
1 stop24h 22mSpirit Airlines
Mon 7/217:48 pmBOI - SEA
1 stop21h 37mSpirit Airlines
Deal found 6/28$243
This FlightHub deal was found by Cheapflights users on 6/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/166:25 amSEA - BOI
1 stop28h 21mFrontier
Sun 7/2012:36 pmBOI - SEA
1 stop12h 58mFrontier
Deal found 6/28$271

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 June 30, 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 8/30

8:04 am-12:03 pm

1 stop2h 59m

Boise Air Term. Gowen Fld

Mon 9/1

9:00 am-9:38 am

Nonstop1h 38m

$167

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Fri 8/15

11:50 am-7:05 pm

1 stop6h 15m

Boise Air Term. Gowen Fld

Mon 8/18

6:15 am-1:35 pm

2 stops8h 20m

$169

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Sun 8/31

7:55 pm-10:32 pm

Nonstop1h 37m

Boise Air Term. Gowen Fld

Wed 9/3

5:45 am-6:27 am

Nonstop1h 42m

$177

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Sun 8/31

3:51 pm-6:16 pm

Nonstop1h 25m

Boise Air Term. Gowen Fld

Sun 8/31

8:42 pm-9:17 pm

Nonstop1h 35m

$191

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Thu 7/17

5:30 pm-6:52 pm

1 stop24h 22m

Boise Air Term. Gowen Fld

Mon 7/21

7:48 pm-4:25 pm

1 stop21h 37m

$243

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Wed 7/16

6:25 am-11:46 am

1 stop28h 21m

Boise Air Term. Gowen Fld

Sun 7/20

12:36 pm-12:34 am

1 stop12h 58m

$271

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Tue 9/2

6:25 am-1:30 pm

1 stop6h 05m

Boise Air Term. Gowen Fld

Wed 9/3

9:52 am-3:14 pm

1 stop6h 22m

$277

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Sat 7/12

7:48 pm-11:46 am

1 stop14h 58m

Boise Air Term. Gowen Fld

Mon 7/14

7:48 pm-4:25 pm

1 stop21h 37m

$295

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Tue 8/5

8:00 am-3:20 pm

1 stop6h 20m

$76

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Wed 8/13

9:45 pm-12:11 am

Nonstop1h 26m

$77

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/27

Showing 1-10 of 16 results
1
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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 June 27, 2025.

Booking 76 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 $398). 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 June 30, 2025.

It’s typically best to fly out from Seattle to Boise in the afternoon. Doing so could potentially save you 10% 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 June 29, 2025.

Travelers seeking maximum savings on their Seattle to Boise flight should consider departing on Monday afternoons 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 June 30, 2025.

The most flights from SEA to BOI are scheduled on a Monday (68 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (55 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 June 30, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta 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

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Southwest
8.0
Very good
4,278 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Delta
8.0
Very good
7,973 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Hawaiian Airlines
7.8
Good
2,529 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
United Airlines
7.4
Good
8,852 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

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 21m on average. When it comes time to book airfare, you have a few options: there are 60 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 15 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 $167 on this airline. Additional options worth looking into are Southwest and Delta, starting at $169 and $177 round-trip. Users have found that Hawaiian Airlines is 21% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Seattle to Boise one-way?

    To fly one-way, consider booking your trip with Southwest, which is currently one of the cheapest options available, starting at $76. Hawaiian Airlines flights start at $77 while deals on Delta start at $79 one-way.

  • 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: KLM (88%), Delta (87%), Horizon Air( 87%).

  • What are the cheapest flights from Seattle to Boise?

    Looking for the cheapest flight from Seattle to Boise? While on average our users pay $186, our data indicates the cheapest price to be $98. 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 $398). 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
Nampa
Meridian
Ontario
McCall
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Alternative routes for Seattle to Boise

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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 June 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$104Average$217FlexibilityNo cancel feeOn-time85%
DeltaCheapest$117Average$203FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$137Average$234FlexibilityNo cancel feeOn-time75%

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