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$69+ 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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BOI
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 12, 2025.

Round-trip from

$156
(Hawaiian Airlines)

One-way from

$69
(Delta)

Popular in

December

Cheapest in

January

Average price

$237

Good round-trip deal

$196 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 ($29 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 12, 2025.

This Hawaiian Airlines deal was found by Cheapflights users on 6/9. 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.
Wed 8/2011:30 amSEA - BOI
1 stop6h 07mHawaiian Airlines
Wed 10/226:59 pmBOI - SEA
1 stop4h 05mHawaiian Airlines
Deal found 6/9$156
This Delta deal was found by Cheapflights users on 6/9. 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 8/228:30 amSEA - BOI
Nonstop1h 34mDelta
Fri 10/245:00 pmBOI - SEA
Nonstop1h 46mDelta
Deal found 6/9$157
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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 9/108:03 amSEA - BOI
Nonstop1h 32mAlaska Airlines
Wed 9/102:19 pmBOI - SEA
1 stop5h 39mAlaska Airlines
Deal found 6/11$161
This Southwest deal was found by Cheapflights users on 6/9. 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 8/205:25 pmSEA - BOI
1 stop4h 55mSouthwest
Wed 10/226:20 amBOI - SEA
2 stops10h 45mSouthwest
Deal found 6/9$168
This United Airlines deal was found by Cheapflights users on 6/9. 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 8/196:25 amSEA - BOI
1 stop6h 05mUnited Airlines
Thu 10/239:45 amBOI - SEA
1 stop7h 39mUnited Airlines
Deal found 6/9$237
This Mytrip deal was found by Cheapflights users on 6/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/124:58 pmSEA - BOI
1 stop26h 46mMultiple Airlines
Sun 9/144:35 pmBOI - SEA
2 stops24h 18mMultiple Airlines
Deal found 6/11$278
This Frontier deal was found by Cheapflights users on 6/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/208:42 pmSEA - BOI
2 stops13h 50mFrontier
Thu 10/2312:48 pmBOI - SEA
1 stop12h 43mFrontier
Deal found 6/9$392

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 12, 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

Wed 8/20

11:30 am-6:37 pm

1 stop6h 07m

Boise Air Term. Gowen Fld

Wed 10/22

6:59 pm-10:04 pm

1 stop4h 05m

$156

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Fri 8/22

7:46 pm-10:23 pm

Nonstop1h 37m

Boise Air Term. Gowen Fld

Mon 10/20

7:30 pm-8:20 pm

Nonstop1h 50m

$157

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Wed 9/10

8:03 am-10:35 am

Nonstop1h 32m

Boise Air Term. Gowen Fld

Wed 9/10

2:19 pm-6:58 pm

1 stop5h 39m

$161

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Wed 8/20

5:25 pm-11:20 pm

1 stop4h 55m

Boise Air Term. Gowen Fld

Wed 10/22

6:20 am-4:05 pm

2 stops10h 45m

$168

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Tue 8/19

6:25 am-1:30 pm

1 stop6h 05m

Boise Air Term. Gowen Fld

Thu 10/23

9:45 am-4:24 pm

1 stop7h 39m

$237

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Fri 9/12

4:58 pm-8:44 pm

1 stop26h 46m

Boise Air Term. Gowen Fld

Sun 9/14

4:35 pm-3:53 pm

2 stops24h 18m

$278

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Wed 8/20

8:42 pm-11:32 am

2 stops13h 50m

Boise Air Term. Gowen Fld

Thu 10/23

12:48 pm-12:31 am

1 stop12h 43m

$392

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Tue 11/4

3:59 pm-6:31 pm

Nonstop1h 32m

$69

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Mon 8/18

4:03 pm-9:06 pm

1 stop4h 03m

$88

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Tue 11/4

7:00 am-1:44 pm

1 stop5h 44m

$89

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 15 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 9, 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 $395). 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 12, 2025.

It’s typically best to fly out from Seattle to Boise in the evening. Doing so could potentially save you 21% 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 8, 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 12, 2025.

The most flights from SEA to BOI are scheduled on a Thursday (65 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (41 on average).

Rainfall in Boise by month

Plan your trip to Boise by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Boise ranges from 0.2 - 1.6 inches per month. December is typically the wettest month, when rainfall can reach 1.6 in. August is typically the driest time to visit Boise when rainfall is around 0.2 in.

Temperature in Boise by month

Plan your trip to Boise by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Boise, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 30.2 F).

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 12, 2025.
Read through reviews of airlines operating flights from Seattle to Boise, such as Alaska Airlines, Southwest and Delta. 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

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

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

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

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
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

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
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

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
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

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 26m on average. When it comes time to book airfare, you have a few options: there are 54 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 19 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 $156 on this airline. Additional options worth looking into are Delta and Alaska Airlines, starting at $157 and $161 round-trip. Users have found that Hawaiian Airlines is 27% 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 Delta, which is currently one of the cheapest options available, starting at $69. Alaska Airlines flights start at $88 while deals on United Airlines start at $89 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: Scandinavian Airlines (100%), Aeromexico (95%), Air France( 94%).

  • What are the cheapest flights from Seattle to Boise?

    Looking for the cheapest flight from Seattle to Boise? While on average our users pay $261, our data indicates the cheapest price to be $98. The most popular route (Seattle/Tacoma Intl - Boise Air Term. Gowen Fld), is priced around $137.

  • 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 $395). 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
Caldwell

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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 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$104Average$217FlexibilityNo cancel feeOn-time85%
DeltaCheapest$117Average$200FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$137Average$233FlexibilityNo cancel feeOn-time75%

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