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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 4/22. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BOI
ian 28 — feb 41
Ma 1/28
Ma 2/4
1 adult, Economy
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The best prices from Seattle/Tacoma Intl to Boise Air Term. Gowen Fld are usually found in January or September, booked 65 days in advance, depart on a Tuesday or Thursday and return on a Wednesday

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 ianuarie 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$143
(Cheapflightsfares)

One-way from

$69
(Delta)

Popular in

December

Cheapest in

January

Average price

$206

Good round-trip deal

$157 or less

Good one-way deal

$88 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Boise Air Term. Gowen Fld flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Boise Air Term. Gowen Fld flights.
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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. 6% potential increase in price ($17 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in January 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 ianuarie 23, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 1/22. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Ma 2/185:15 amSEA - BOI
1 stop12h 31mSpirit Airlines
Ma 2/257:41 pmBOI - SEA
1 stop5h 44mSpirit Airlines
Deal found 1/22$143
This Orbitz deal was found by Cheapflights users on 1/22. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Vi 2/215:15 amSEA - BOI
1 stop12h 31mMultiple Airlines
Jo 2/272:46 pmBOI - SEA
Nonstop1h 38mMultiple Airlines
Deal found 1/22$155
This Delta deal was found by Cheapflights users on 1/23. 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.
Ma 3/47:20 amSEA - BOI
Nonstop1h 34mDelta
Mi 3/127:15 pmBOI - SEA
Nonstop1h 40mDelta
Deal found 1/23$157
This Southwest deal was found by Cheapflights users on 1/22. 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.
Mi 4/237:35 amSEA - BOI
1 stop7h 20mSouthwest
Sâ 4/266:05 pmBOI - SEA
1 stop6h 30mSouthwest
Deal found 1/22$172
This Alaska Airlines deal was found by Cheapflights users on 1/22. 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.
Lu 3/33:55 pmSEA - BOI
1 stop4h 39mAlaska Airlines
Vi 3/72:46 pmBOI - SEA
Nonstop1h 38mAlaska Airlines
Deal found 1/22$197
This United Airlines deal was found by Cheapflights users on 1/22. 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.
Jo 3/612:55 pmSEA - BOI
1 stop5h 27mUnited Airlines
Du 3/96:56 pmBOI - SEA
1 stop6h 59mUnited Airlines
Deal found 1/22$214

Find flights from Seattle to Boise within your budget

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 ianuarie 23, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Ma 2/18

5:15 am-6:46 pm

1 stop12h 31m

Boise Air Term. Gowen Fld

Ma 2/25

7:41 pm-12:25 am

1 stop5h 44m

$143

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Vi 2/21

5:15 am-6:46 pm

1 stop12h 31m

Boise Air Term. Gowen Fld

Jo 2/27

2:46 pm-3:24 pm

Nonstop1h 38m

$155

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Ma 3/4

7:20 am-9:54 am

Nonstop1h 34m

Boise Air Term. Gowen Fld

Mi 3/12

7:15 pm-7:55 pm

Nonstop1h 40m

$157

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Mi 4/23

7:35 am-3:55 pm

1 stop7h 20m

Boise Air Term. Gowen Fld

Sâ 4/26

6:05 pm-11:35 pm

1 stop6h 30m

$172

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Lu 3/3

3:55 pm-9:34 pm

1 stop4h 39m

Boise Air Term. Gowen Fld

Vi 3/7

2:46 pm-3:24 pm

Nonstop1h 38m

$197

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Jo 3/6

12:55 pm-7:22 pm

1 stop5h 27m

Boise Air Term. Gowen Fld

Du 3/9

6:56 pm-12:55 am

1 stop6h 59m

$214

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Ma 4/22

1:55 pm-4:29 pm

Nonstop1h 34m

$69

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Lu 2/24

7:47 pm-6:46 pm

1 stop21h 59m

$75

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Jo 3/13

5:45 am-12:10 pm

1 stop5h 25m

$79

SeattleBoise

SEA - BOI

SEABOI

Seattle/Tacoma Intl

Lu 2/24

3:55 pm-9:34 pm

1 stop4h 39m

$108

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/22

Showing 1-10 of 12 results
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Compare providers for flights from Seattle to Boise

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Boise in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*1 star
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy2 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Boise flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Boise flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Boise flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Boise flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Boise flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

Travel insights for flights from Seattle to Boise

Get recent, data-driven insights about flights from Seattle to Boise including ideal travel times, pricing trends, and more.

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 January 17, 2025.

Booking 65 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 $436). 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 ianuarie 23, 2025.

It’s typically best to fly out from Seattle to Boise in the evening. Doing so could potentially save you 14% 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 January 21, 2025.

Travelers seeking maximum savings on their Seattle to Boise flight should consider departing on Tuesday mornings 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 ianuarie 23, 2025.

The most flights from SEA to BOI are scheduled on a Thursday (54 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (35 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 ianuarie 23, 2025.
Read through reviews of airlines operating flights from Seattle to Boise, such as Spirit Airlines, Delta and Southwest. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,652 reviews

Food

7.2

Crew

8.7

Overall

8.1

Boarding

8.2

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,652 reviews
Southwest
8.1
Very good
4,652 reviews

Food

7.2

Crew

8.7

Overall

8.1

Boarding

8.2

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,699 reviews
Southwest
8.1
Very good
4,652 reviews

Food

7.2

Crew

8.7

Overall

8.1

Boarding

8.2

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,512 reviews
Southwest
8.1
Very good
4,652 reviews

Food

7.2

Crew

8.7

Overall

8.1

Boarding

8.2

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,970 reviews
Southwest
8.1
Very good
4,652 reviews

Food

7.2

Crew

8.7

Overall

8.1

Boarding

8.2

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Spirit Airlines
6.3
Okay
8,109 reviews
Southwest
8.1
Very good
4,652 reviews

Food

7.2

Crew

8.7

Overall

8.1

Boarding

8.2

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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 24m on average. When it comes time to book airfare, you have a few options: there are 47 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 20 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 Spirit Airlines. Our recent data shows that you can find tickets from as low as $143 on this airline. Additional options worth looking into are Delta and Southwest, starting at $157 and $172 round-trip. Users have found that Spirit Airlines is 38% 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. Spirit Airlines flights start at $75 while deals on Southwest 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 (93%), Air France (92%), Aeromexico( 91%).

  • What are the cheapest flights from Seattle to Boise?

    Looking for the cheapest flight from Seattle to Boise? While on average our users pay $277, our data indicates the cheapest price to be $78. The most popular route (Seattle/Tacoma Intl - Boise Air Term. Gowen Fld), is priced around $129.

  • 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 $436). 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?

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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 ianuarie 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$117Average$222FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$119Average$178FlexibilityNo cancel feeOn-time65%
Alaska AirlinesCheapest$146Average$258FlexibilityNo cancel feeOn-time75%
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