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Cheap flights from Boise to Seattle from $63

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 11/19. 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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0 bags

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Find the cheapest flights from Boise to Seattle

Cheap round-trip flights

Hawaiian Airlines Logo
5:38 pm - 6:15 pmBOI-SEA
1h 37mnonstop
Hawaiian Airlines Logo
9:30 pm - 11:56 pmSEA-BOI
1h 26mnonstop
$126Hawaiian Airlines
Find Deal
Sat, Oct 11 - Mon, Oct 13
Hawaiian Airlines Logo
1:50 pm - 7:10 pmBOI-SEA
6h 20m1 stop
Hawaiian Airlines Logo
10:26 am - 1:10 pmSEA-BOI
1h 44mnonstop
$127Hawaiian Airlines
Find Deal
Sat, Oct 11 - Sat, Oct 18
Delta Logo
2:00 pm - 2:45 pmBOI-SEA
1h 45mnonstop
Delta Logo
5:45 pm - 8:16 pmSEA-BOI
1h 31mnonstop
$137Delta
Find Deal
Fri, Oct 24 - Sat, Nov 1
Alaska Airlines Logo
9:58 am - 10:40 amBOI-SEA
1h 42mnonstop
Alaska Airlines Logo
8:45 am - 11:09 amSEA-BOI
1h 24mnonstop
$143Alaska Airlines
Find Deal
Thu, Oct 9 - Sun, Oct 12
Southwest Logo
5:30 pm - 10:45 pmBOI-SEA
6h 15m1 stop
Southwest Logo
3:30 pm - 11:05 pmSEA-BOI
6h 35m1 stop
$144Southwest
Find Deal
Wed, Oct 22 - Sat, Oct 25
Southwest Logo
3:55 pm - 10:20 pmBOI-SEA
7h 25m1 stop
Southwest Logo
6:35 pm - 12:40 amSEA-BOI
5h 05m1 stop
$151Southwest
Find Deal
Thu, Oct 16 - Mon, Oct 20
Delta Logo
7:45 pm - 8:37 pmBOI-SEA
1h 52mnonstop
Delta Logo
9:35 pm - 12:08 amSEA-BOI
1h 33mnonstop
$157Delta
Find Deal
Thu, Oct 16 - Mon, Oct 20
Alaska Airlines Logo
1:50 pm - 7:10 pmBOI-SEA
6h 20m1 stop
Alaska Airlines Logo
10:26 am - 1:10 pmSEA-BOI
1h 44mnonstop
$158Alaska Airlines
Find Deal
Sat, Oct 11 - Mon, Oct 13
Logo
1:50 pm - 7:10 pmBOI-SEA
6h 20m1 stop
Logo
10:26 am - 1:10 pmSEA-BOI
1h 44mnonstop
$165
Find Deal
Sat, Oct 11 - Mon, Oct 13
Logo
1:50 pm - 7:10 pmBOI-SEA
6h 20m1 stop
Logo
7:00 am - 9:35 amSEA-BOI
1h 35mnonstop
$170
Find Deal
Sat, Oct 4 - Sun, Oct 5

Delta flights from Boise to Seattle

Our best Delta deals on Boise to Seattle flight tickets
Delta
Oct 24
BOI2:00 pmBoise Air Term. Gowen Fld
1h 45m
SEA2:45 pmSeattle/Tacoma Intl
Nov 1
SEA5:45 pmSeattle/Tacoma Intl
1h 31m
BOI8:16 pmBoise Air Term. Gowen Fld
$137
Find similar
Delta
Oct 16
BOI7:45 pmBoise Air Term. Gowen Fld
1h 52m
SEA8:37 pmSeattle/Tacoma Intl
Oct 20
SEA9:35 pmSeattle/Tacoma Intl
1h 33m
BOI12:08 amBoise Air Term. Gowen Fld
$157
Find similar
Delta
Oct 2
BOI7:45 pmBoise Air Term. Gowen Fld
1h 45m
SEA8:30 pmSeattle/Tacoma Intl
Oct 11
SEA1:30 pmSeattle/Tacoma Intl
1h 36m
BOI4:06 pmBoise Air Term. Gowen Fld
$207
Find similar

Alaska Airlines flights from Boise to Seattle

Our best Alaska Airlines deals on Boise to Seattle flight tickets
Alaska Airlines
Oct 9
BOI9:58 amBoise Air Term. Gowen Fld
1h 42m
SEA10:40 amSeattle/Tacoma Intl
Oct 12
SEA8:45 amSeattle/Tacoma Intl
1h 24m
BOI11:09 amBoise Air Term. Gowen Fld
$143
Find similar
Alaska Airlines
Oct 11
BOI1:50 pmBoise Air Term. Gowen Fld
6h 20m
1 stop
SEA7:10 pmSeattle/Tacoma Intl
Oct 13
SEA10:26 amSeattle/Tacoma Intl
1h 44m
BOI1:10 pmBoise Air Term. Gowen Fld
$158
Find similar
Alaska Airlines
Oct 21
BOI10:15 amBoise Air Term. Gowen Fld
5h 39m
1 stop
SEA2:54 pmSeattle/Tacoma Intl
Oct 23
SEA12:00 pmSeattle/Tacoma Intl
1h 36m
BOI2:36 pmBoise Air Term. Gowen Fld
$176
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Boise to Seattle 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, momondo users made 832,500 searches. Data last updated September 15, 2025.
Use the filters below to find and compare flights from Boise to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Sat 10/11

5:38 pm-6:15 pm

Nonstop1h 37m

Seattle/Tacoma Intl

Mon 10/13

9:30 pm-11:56 pm

Nonstop1h 26m

$126

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Sat 10/11

1:50 pm-7:10 pm

1 stop6h 20m

Seattle/Tacoma Intl

Sat 10/18

10:26 am-1:10 pm

Nonstop1h 44m

$127

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Fri 10/24

2:00 pm-2:45 pm

Nonstop1h 45m

Seattle/Tacoma Intl

Sat 11/1

5:45 pm-8:16 pm

Nonstop1h 31m

$137

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Thu 10/9

9:58 am-10:40 am

Nonstop1h 42m

Seattle/Tacoma Intl

Sun 10/12

8:45 am-11:09 am

Nonstop1h 24m

$143

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Wed 10/22

5:30 pm-10:45 pm

1 stop6h 15m

Seattle/Tacoma Intl

Sat 10/25

3:30 pm-11:05 pm

1 stop6h 35m

$144

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Thu 10/16

3:55 pm-10:20 pm

1 stop7h 25m

Seattle/Tacoma Intl

Mon 10/20

6:35 pm-12:40 am

1 stop5h 05m

$151

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Thu 10/16

7:45 pm-8:37 pm

Nonstop1h 52m

Seattle/Tacoma Intl

Mon 10/20

9:35 pm-12:08 am

Nonstop1h 33m

$157

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Sat 10/11

1:50 pm-7:10 pm

1 stop6h 20m

Seattle/Tacoma Intl

Mon 10/13

10:26 am-1:10 pm

Nonstop1h 44m

$158

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Sat 10/11

1:50 pm-7:10 pm

1 stop6h 20m

Seattle/Tacoma Intl

Mon 10/13

10:26 am-1:10 pm

Nonstop1h 44m

$165

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Sat 10/4

1:50 pm-7:10 pm

1 stop6h 20m

Seattle/Tacoma Intl

Sun 10/5

7:00 am-9:35 am

Nonstop1h 35m

$170

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

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

What is the typical price of a round-trip flight between Boise and Seattle?

What is the cheapest month to fly to Seattle?

In general, February 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 $177. If you don’t want to visit Seattle in February, then you should wait until April to fly from Boise, when ticket prices are also cheap, with an average price of $177.

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 $415. 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 $522.

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 $387 when looking at flights departing in the evening. Flights to Seattle are more costly in the afternoon, with an average ticket price of $512. 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 $198 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 $175 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 September 2025, prices for Boise to Seattle flights are approximately 13% 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

$141

Fastest flight time

1h 30m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Boise in the past 72 hours is $141. The best round-trip flight deal from Boise to Seattle found on momondo in the last 72 hours is $254.
The fastest flight from Boise to Seattle takes 1h 30m
Direct flights go from Boise to Seattle every day.
There is 1 airport near Seattle: 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 37m, 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?

  • 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?

  • 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
Airline
Rating
Free Cancellation
Price
Hawaiian AirlinesPriceFrom $117Free CancellationRating
7.8
2,723 reviews
Search Hawaiian Airlines flights
DeltaPriceFrom $118Free CancellationRating
7.9
7,954 reviews
Search Delta flights
Alaska AirlinesPriceFrom $137Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights

  • Alaska Airlines Flights From Boise to Seattle

    Alaska Airlines flight deals from Boise to Seattle start from $137 round-trip. Over the 58 Alaska Airlines flights for this route in a normal week, average airfare is usually $199 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 $118 round-trip, depending on your selected dates, with average Delta deals seen on momondo around $197. Delta operates 36 flights to Seattle from Boise in an average week. Users have rated it 7.9/10 across 7,954 reviews.

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Leavenworth
Tacoma
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Marysville
Puyallup
Federal Way
Kirkland
Tukwila
Shoreline
Lakewood
Centralia
Fife
Cle Elum
Redmond
Westport

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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