How often are flights from Boise to Seattle delayed?

Historically, on average around 12% of flights between Boise and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 115 minutes.

How many flights depart from Boise to Seattle on average per week?

As of January 2026, 295 flights take off from Boise and land in Seattle each week. The most common flight departure day for this route is Mon, with 17% of weekly flights taking off on this day.

What airlines fly to Seattle?

Alaska Airlines, Delta and Hawaiian Airlines are the top three most popular airlines that fly to Seattle from Boise according to our data. Alaska Airlines is the first choice among our users, with 52% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 3 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

How many flights depart from Boise to Seattle on average per day?

As of January 2026, there are 42 flights per day flying from Boise to Seattle. The most common time of day flights depart is 10:00AM, with 62% of flights taking off at noon.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

What is the most punctual flight time for Boise to Seattle flights?

Generally, flights departing at night tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

What is the cheapest airline that flies from Boise Air Term. Gowen Fld to Seattle/Tacoma Intl?

Southwest and Alaska Airlines are the most popular carriers operating from Boise Air Term. Gowen Fld to Seattle/Tacoma Intl

Which airline has the best punctuality record on Boise to Seattle flights?

According to our data, Delta have had the least number of delays on this route over the last 12 months; with about 7% of their flights experiencing any sort of delay.

When did momondo last update prices for flights from Boise Air Term. Gowen Fld Airport to Seattle/Tacoma Intl Airport?

Prices for flights from Boise Air Term. Gowen Fld Airport to Seattle/Tacoma Intl Airport refresh daily.

How many operators does momondo search for flights from Boise Air Term. Gowen Fld Airport to Seattle/Tacoma Intl Airport?

As of January 2026, there are 3 operators available to choose from for flights from Boise Air Term. Gowen Fld Airport to Seattle/Tacoma Intl Airport.

How old do you have to be to fly from Boise Air Term. Gowen Fld Airport to Seattle/Tacoma Intl Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boise Air Term. Gowen Fld Airport to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$67 Cheap Flights from Boise to Seattle in 2026

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6:23 am - 7:15 am

BOI

SEA

1h 52mnonstop

9:36 pm - 11:59 pm

SEA

BOI

1h 23mnonstop

$109Hawaiian Airlines

Thu, Feb 5 - Sun, Feb 8

5:55 pm - 6:33 pm

BOI

SEA

1h 38mnonstop

9:36 pm - 11:59 pm

SEA

BOI

1h 23mnonstop

$110Hawaiian Airlines

Thu, Feb 5 - Sun, Feb 8

1:55 pm - 2:39 pm

BOI

SEA

1h 44mnonstop

10:20 am - 12:51 pm

SEA

BOI

1h 31mnonstop

$119Alaska Airlines

Fri, Feb 6 - Sun, Feb 8

6:28 am - 7:13 am

BOI

SEA

1h 45mnonstop

7:10 am - 9:40 am

SEA

BOI

1h 30mnonstop

$128Alaska Airlines

Wed, Feb 18 - Sun, Feb 22

8:01 pm - 8:50 pm

BOI

SEA

1h 49mnonstop

7:15 am - 9:56 am

SEA

BOI

1h 41mnonstop

$137Delta

Tue, Apr 14 - Sat, Apr 18

6:28 am - 7:13 am

BOI

SEA

1h 45mnonstop

8:10 pm - 10:40 pm

SEA

BOI

1h 30mnonstop

$138Alaska Airlines

Thu, Feb 19 - Mon, Feb 23

7:15 pm - 8:11 pm

BOI

SEA

1h 56mnonstop

7:15 am - 9:50 am

SEA

BOI

1h 35mnonstop

$139Delta

Fri, Feb 13 - Sun, Feb 15

7:59 pm - 10:33 pm

BOI

SEA

3h 34m

1 stop

9:36 pm - 11:59 pm

SEA

BOI

1h 23mnonstop

$144Hawaiian Airlines

Thu, Feb 5 - Sun, Feb 8

8:55 am - 9:49 am

BOI

SEA

1h 54mnonstop

7:51 pm - 10:25 pm

SEA

BOI

1h 34mnonstop

$147Delta

Fri, Apr 24 - Sat, May 2

3:47 pm - 4:23 pm

BOI

SEA

1h 36mnonstop

3:12 pm - 5:35 pm

SEA

BOI

1h 23mnonstop

$148Alaska Airlines

Thu, Feb 19 - Mon, Feb 23

Southwest flights from Boise to Seattle

Our best Southwest deals on Boise to Seattle flight tickets

Southwest

Feb 18

BOI3:35 pmBoise Air Term. Gowen Fld

8h 00m

1 stop

SEA10:35 pmSeattle/Tacoma Intl

Feb 22

SEA5:50 amSeattle/Tacoma Intl

4h 05m

1 stop

BOI10:55 amBoise Air Term. Gowen Fld

$151

Southwest

Apr 14

BOI4:05 pmBoise Air Term. Gowen Fld

8h 30m

1 stop

SEA11:35 pmSeattle/Tacoma Intl

Apr 18

SEA6:40 amSeattle/Tacoma Intl

6h 30m

1 stop

BOI2:10 pmBoise Air Term. Gowen Fld

$154

Southwest

Feb 25

BOI3:35 pmBoise Air Term. Gowen Fld

8h 00m

1 stop

SEA10:35 pmSeattle/Tacoma Intl

Feb 28

SEA5:50 amSeattle/Tacoma Intl

10h 40m

2 stops

BOI5:30 pmBoise Air Term. Gowen Fld

$156

Alaska Airlines flights from Boise to Seattle

Our best Alaska Airlines deals on Boise to Seattle flight tickets

Alaska Airlines

Feb 6

BOI1:55 pmBoise Air Term. Gowen Fld

1h 44m

SEA2:39 pmSeattle/Tacoma Intl

Feb 8

SEA10:20 amSeattle/Tacoma Intl

1h 31m

BOI12:51 pmBoise Air Term. Gowen Fld

$119

Alaska Airlines

Feb 18

BOI6:28 amBoise Air Term. Gowen Fld

1h 45m

SEA7:13 amSeattle/Tacoma Intl

Feb 22

SEA7:10 amSeattle/Tacoma Intl

1h 30m

BOI9:40 amBoise Air Term. Gowen Fld

$128

Alaska Airlines

Feb 19

BOI6:28 amBoise Air Term. Gowen Fld

1h 45m

SEA7:13 amSeattle/Tacoma Intl

Feb 23

SEA8:10 pmSeattle/Tacoma Intl

1h 30m

BOI10:40 pmBoise Air Term. Gowen Fld

$138

Fly from

Fly to

Route

Depart

Return

Price

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Thu 2/5

6:23 am-7:15 am

Nonstop1h 52m

Seattle/Tacoma Intl

Sun 2/8

9:36 pm-11:59 pm

Nonstop1h 23m

$109

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Thu 2/5

5:55 pm-6:33 pm

Nonstop1h 38m

Seattle/Tacoma Intl

Sun 2/8

9:36 pm-11:59 pm

Nonstop1h 23m

$110

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Fri 2/6

1:55 pm-2:39 pm

Nonstop1h 44m

Seattle/Tacoma Intl

Sun 2/8

10:20 am-12:51 pm

Nonstop1h 31m

$119

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Wed 2/18

6:28 am-7:13 am

Nonstop1h 45m

Seattle/Tacoma Intl

Sun 2/22

7:10 am-9:40 am

Nonstop1h 30m

$128

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Tue 4/14

8:01 pm-8:50 pm

Nonstop1h 49m

Seattle/Tacoma Intl

Sat 4/18

7:15 am-9:56 am

Nonstop1h 41m

$137

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Thu 2/19

6:28 am-7:13 am

Nonstop1h 45m

Seattle/Tacoma Intl

Mon 2/23

8:10 pm-10:40 pm

Nonstop1h 30m

$138

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Fri 2/13

7:15 pm-8:11 pm

Nonstop1h 56m

Seattle/Tacoma Intl

Sun 2/15

7:15 am-9:50 am

Nonstop1h 35m

$139

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Thu 2/5

7:59 pm-10:33 pm

1 stop3h 34m

Seattle/Tacoma Intl

Sun 2/8

9:36 pm-11:59 pm

Nonstop1h 23m

$144

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Fri 4/24

8:55 am-9:49 am

Nonstop1h 54m

Seattle/Tacoma Intl

Sat 5/2

7:51 pm-10:25 pm

Nonstop1h 34m

$147

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Thu 2/19

3:47 pm-4:23 pm

Nonstop1h 36m

Seattle/Tacoma Intl

Mon 2/23

3:12 pm-5:35 pm

Nonstop1h 23m

$148

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How to get the cheapest flight ticket from Boise to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Delays

Other information

What is the cheapest month to fly to Seattle?

In general, January is the cheapest month to fly from Boise to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $158. If you don’t want to visit Seattle in January, then you should wait until December to fly from Boise, when ticket prices are also cheap, with an average price of $159.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Boise is on a Friday. momondo users have found tickets for Friday departures for as low as $386. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Boise because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $566.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Boise in the evening is the least expensive time of day to depart. momondo users have found prices as low as $383 when looking at flights departing in the evening. Flights to Seattle are more costly in the afternoon, with an average ticket price of $532. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Boise Air Term. Gowen Fld to Seattle/Tacoma Intl flight route?

Fly from Boise Air Term. Gowen Fld to Seattle/Tacoma Intl for the best Boise Air Term. Gowen Fld - Seattle/Tacoma Intl flight prices

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Boise when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $186 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Boise for as low as $159 on momondo.

What cabin class options are available on Boise Air Term. Gowen Fld to Seattle/Tacoma Intl flights?

There are 4 cabin classes available to choose from on Boise Air Term. Gowen Fld to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Boise to Seattle flight prices changed over time?

As of January 2026, prices for Boise to Seattle flights are approximately 0% more expensive when compared to flights at the same time last year.

When to book flights from Boise to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Boise to Seattle according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Boise to Seattle (BOI to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boise to Seattle

Best Price Found	$137
Fastest flight time	1h 38m
Direct flights	Every day
Airports in Seattle	1 airport

The best one-way flight to Seattle from Boise in the past 72 hours is $137. The best round-trip flight deal from Boise to Seattle found on momondo in the last 72 hours is $284.

The fastest flight from Boise to Seattle takes 1h 38m

Direct flights go from Boise to Seattle every day.

There is 1 airport in Seattle. From Boise there are direct flights to Seattle/Tacoma Intl (SEA).

Search flight deals

How far is Boise Air Term. Gowen Fld to Seattle/Tacoma Intl by plane?
There are 404.9 mi between Boise Air Term. Gowen Fld and Seattle/Tacoma Intl. Flights usually cover this in 1h 38m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Boise Air Term. Gowen Fld Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Boise Air Term. Gowen Fld Airport to Seattle/Tacoma Intl Airport refresh daily.
How many operators does momondo search for flights from Boise Air Term. Gowen Fld Airport to Seattle/Tacoma Intl Airport?
As of January 2026, there are 3 operators available to choose from for flights from Boise Air Term. Gowen Fld Airport to Seattle/Tacoma Intl Airport.
How old do you have to be to fly from Boise Air Term. Gowen Fld Airport to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boise Air Term. Gowen Fld Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Boise to Seattle?
Based on momondo bookings for flights between Boise and Seattle, the leading plane model is Boeing 737-800 Passenger/BBJ2 (winglets), making up 28.91% of the total bookings. Other popular models include Embraer 175 with 22.35%, Boeing 737-900 Passenger/BBJ3 (winglets) with 8.40%, and Embraer 175 (Enhanced Winglets) with 7.90%.
What is the most popular airline from Boise to Seattle?
momondo data reveals that the most frequently booked airline on the route from Boise to Seattle is Alaska Airlines, representing 52% of all bookings. The subsequent popular airlines are Delta at 43% and Hawaiian Airlines at 6%.

Best airlines flying from Boise to Seattle

Compare and see reviews for airlines that fly from Boise to Seattle with momondo

Airline	Rating	Free Cancellation	Price
Alaska Airlines	PriceFrom $99	Free Cancellation	Rating 8.0 11,706 reviews	Search Alaska Airlines flights
Delta	PriceFrom $105	Free Cancellation	Rating 7.9 8,040 reviews	Search Delta flights
Hawaiian Airlines	PriceFrom $117	Free Cancellation	Rating 7.8 2,827 reviews	Search Hawaiian Airlines flights

Alaska Airlines Flights From Boise to Seattle
Alaska Airlines flight deals from Boise to Seattle start from $99 round-trip. Over the 32 Alaska Airlines flights for this route in a normal week, average airfare is usually $197 round-trip - but some users have found much cheaper deals with momondo.
Delta Flights From Boise to Seattle
Delta is also a popular choice for this route. Delta flight deals for Boise to Seattle start from as low as $105 round-trip, depending on your selected dates, with average Delta deals seen on momondo around $197. Delta operates 32 flights to Seattle from Boise in an average week. Users have rated it 7.9/10 across 8,042 reviews.

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Kent

Marysville

Puyallup

Redmond

Tukwila

Cle Elum

Lakewood

Federal Way

Fife

Kirkland

Westport

Centralia

Shoreline

Why use momondo?

Why should I use momondo to find a flight deal from Boise to Seattle?

It is quick and easy to find Boise to Seattle flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Seattle that suits you.

Can I find flights from Boise to Seattle with flexible booking policies on momondo?

All flight searches from Boise to Seattle on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Boise to Seattle?

momondo provides multiple filters to help you find the best flight to Seattle from Boise. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Boise to Seattle right now. Can momondo alert me if prices change?

Price alerts on flights to Seattle from Boise are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Cheap flights from Boise to Seattle from $67

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boise to Seattle departing on 2/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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How to get the cheapest flight ticket from Boise to Seattle

What is the cheapest month to fly to Seattle?

What is the cheapest day to depart on your flight to Seattle?

What is the cheapest time of day to depart on your flight to Seattle?

What is the cheapest Boise Air Term. Gowen Fld to Seattle/Tacoma Intl flight route?

Fly from Boise Air Term. Gowen Fld to Seattle/Tacoma Intl for the best Boise Air Term. Gowen Fld - Seattle/Tacoma Intl flight prices

How far in advance should I book a flight to Seattle?

What cabin class options are available on Boise Air Term. Gowen Fld to Seattle/Tacoma Intl flights?

There are 4 cabin classes available to choose from on Boise Air Term. Gowen Fld to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Boise to Seattle flight prices changed over time?

As of January 2026, prices for Boise to Seattle flights are approximately 0% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from Boise Air Term. Gowen Fld to Seattle/Tacoma Intl?

Southwest and Alaska Airlines are the most popular carriers operating from Boise Air Term. Gowen Fld to Seattle/Tacoma Intl

What airlines fly to Seattle?

How often are flights from Boise to Seattle delayed?

Historically, on average around 12% of flights between Boise and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 115 minutes.

What is the most punctual flight time for Boise to Seattle flights?

Generally, flights departing at night tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Boise to Seattle flights?

According to our data, Delta have had the least number of delays on this route over the last 12 months; with about 7% of their flights experiencing any sort of delay.

How many flights depart from Boise to Seattle on average per day?

As of January 2026, there are 42 flights per day flying from Boise to Seattle. The most common time of day flights depart is 10:00AM, with 62% of flights taking off at noon.

How many flights depart from Boise to Seattle on average per week?

As of January 2026, 295 flights take off from Boise and land in Seattle each week. The most common flight departure day for this route is Mon, with 17% of weekly flights taking off on this day.

When to book flights from Boise to Seattle

Cheap Boise to Seattle (BOI to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boise to Seattle

Best Price Found

Fastest flight time

Direct flights

Airports in Seattle

How far is Boise Air Term. Gowen Fld to Seattle/Tacoma Intl by plane?

When did momondo last update prices for flights from Boise Air Term. Gowen Fld Airport to Seattle/Tacoma Intl Airport?

How many operators does momondo search for flights from Boise Air Term. Gowen Fld Airport to Seattle/Tacoma Intl Airport?

How old do you have to be to fly from Boise Air Term. Gowen Fld Airport to Seattle/Tacoma Intl Airport?

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

What is the most popular plane model from Boise to Seattle?

What is the most popular airline from Boise to Seattle?

Best airlines flying from Boise to Seattle

Compare and see reviews for airlines that fly from Boise to Seattle with momondo

Alaska Airlines Flights From Boise to Seattle

Delta Flights From Boise to Seattle

Traveling to a place near Seattle?

Why use momondo?

Why should I use momondo to find a flight deal from Boise to Seattle?

Can I find flights from Boise to Seattle with flexible booking policies on momondo?

How can momondo help me find flights from Boise to Seattle?

I’m not ready to book a flight from Boise to Seattle right now. Can momondo alert me if prices change?

An easier way to manage your Seattle trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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Airports servicing Washington