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Cheap flights from San José to Seattle from $271

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San José to Seattle departing on 5/11. 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 San José to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:45 am - 6:33 pm
SJO
-
SEA
13h 48m
2 stops
Multiple Airlines Logo
7:00 am - 11:15 pm
SEA
-
SJO
15h 15m
2 stops
$390Multiple Airlines
Thu, Sep 24 - Sat, Oct 3
Multiple Airlines Logo
5:45 am - 6:33 pm
SJO
-
SEA
13h 48m
1 stop
Multiple Airlines Logo
9:50 am - 11:15 pm
SEA
-
SJO
12h 25m
1 stop
$395Multiple Airlines
Thu, Sep 24 - Sat, Oct 3
Multiple Airlines Logo
5:45 am - 6:26 pm
SJO
-
SEA
13h 41m
2 stops
Multiple Airlines Logo
6:50 am - 11:15 pm
SEA
-
SJO
15h 25m
2 stops
$432Multiple Airlines
Tue, Sep 1 - Tue, Sep 8
Multiple Airlines Logo
5:45 am - 6:10 pm
SJO
-
SEA
13h 25m
1 stop
Multiple Airlines Logo
10:03 am - 11:15 pm
SEA
-
SJO
12h 12m
1 stop
$434Multiple Airlines
Tue, Jul 28 - Tue, Aug 11
Multiple Airlines Logo
5:45 am - 10:44 pm
SJO
-
SEA
17h 59m
1 stop
Multiple Airlines Logo
9:15 pm - 11:15 pm
SEA
-
SJO
25h 00m
1 stop
$440Multiple Airlines
Thu, May 21 - Wed, May 27
Multiple Airlines Logo
5:45 am - 6:10 pm
SJO
-
SEA
13h 25m
2 stops
Multiple Airlines Logo
10:03 am - 11:15 pm
SEA
-
SJO
12h 12m
2 stops
$442Multiple Airlines
Tue, Jul 28 - Tue, Aug 11
Multiple Airlines Logo
5:45 am - 3:32 pm
SJO
-
SEA
34h 47m
2 stops
Multiple Airlines Logo
7:07 pm - 11:15 pm
SEA
-
SJO
27h 08m
2 stops
$444Multiple Airlines
Sat, Aug 22 - Mon, Aug 31
Multiple Airlines Logo
5:45 am - 6:10 pm
SJO
-
SEA
13h 25m
2 stops
Multiple Airlines Logo
9:18 pm - 11:15 pm
SEA
-
SJO
24h 57m
2 stops
$449Multiple Airlines
Thu, Jul 23 - Mon, Aug 3
Multiple Airlines Logo
5:45 am - 7:16 pm
SJO
-
SEA
14h 31m
1 stop
Multiple Airlines Logo
8:00 am - 11:15 pm
SEA
-
SJO
14h 15m
1 stop
$455Multiple Airlines
Thu, May 21 - Thu, May 28
Multiple Airlines Logo
4:35 pm - 10:03 pm
SJO
-
SEA
30h 28m
1 stop
Multiple Airlines Logo
9:06 pm - 11:15 pm
SEA
-
SJO
25h 09m
1 stop
$459Multiple Airlines
Wed, Apr 22 - Mon, Apr 27

Alaska Airlines flights from San José to Seattle

Our best Alaska Airlines deals on San José to Seattle flight tickets
Alaska Airlines
May 31
SJO12:53 amSan José Juan Santamaria Intl
31h 17m
2 stops
SEA7:10 amSeattle/Tacoma Intl
Jun 3
SEA6:00 amSeattle/Tacoma Intl
16h 33m
1 stop
SJO11:33 pmSan José Juan Santamaria Intl
$494
Alaska Airlines
Jun 1
SJO12:53 amSan José Juan Santamaria Intl
17h 30m
2 stops
SEA5:23 pmSeattle/Tacoma Intl
Jun 3
SEA6:00 amSeattle/Tacoma Intl
16h 33m
1 stop
SJO11:33 pmSan José Juan Santamaria Intl
$530
Alaska Airlines
Apr 7
SJO1:03 amSan José Juan Santamaria Intl
15h 45m
2 stops
SEA3:48 pmSeattle/Tacoma Intl
Apr 13
SEA9:42 pmSeattle/Tacoma Intl
25h 11m
2 stops
SJO11:53 pmSan José Juan Santamaria Intl
$648

Southwest flights from San José to Seattle

Our best Southwest deals on San José to Seattle flight tickets
Southwest
Apr 15
SJO9:00 amSan José Juan Santamaria Intl
16h 10m
2 stops
SEA12:10 amSeattle/Tacoma Intl
Apr 21
SEA5:35 pmSeattle/Tacoma Intl
17h 35m
2 stops
SJO12:10 pmSan José Juan Santamaria Intl
$536
Southwest
Apr 16
SJO9:00 amSan José Juan Santamaria Intl
16h 05m
2 stops
SEA12:05 amSeattle/Tacoma Intl
Apr 20
SEA5:30 amSeattle/Tacoma Intl
12h 30m
2 stops
SJO7:00 pmSan José Juan Santamaria Intl
$550
Southwest
Apr 15
SJO9:00 amSan José Juan Santamaria Intl
16h 10m
2 stops
SEA12:10 amSeattle/Tacoma Intl
Apr 22
SEA6:30 amSeattle/Tacoma Intl
11h 30m
2 stops
SJO7:00 pmSan José Juan Santamaria Intl
$555

momondo Fare Finder

 
Customize your flight search to find flights from San José 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 April 4, 2026.
Use the filters below to find and compare flights from San José to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Thu 9/24

5:45 am-6:33 pm

2 stops13h 48m

Seattle/Tacoma Intl

Sat 10/3

7:00 am-11:15 pm

2 stops15h 15m

$390

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Thu 9/24

5:45 am-6:33 pm

1 stop13h 48m

Seattle/Tacoma Intl

Sat 10/3

9:50 am-11:15 pm

1 stop12h 25m

$395

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Tue 9/1

5:45 am-6:26 pm

2 stops13h 41m

Seattle/Tacoma Intl

Tue 9/8

6:50 am-11:15 pm

2 stops15h 25m

$432
Quickest round-trip

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Tue 7/28

5:45 am-6:10 pm

1 stop13h 25m

Seattle/Tacoma Intl

Tue 8/11

10:03 am-11:15 pm

1 stop12h 12m

$434

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Thu 5/21

5:45 am-10:44 pm

1 stop17h 59m

Seattle/Tacoma Intl

Wed 5/27

9:15 pm-11:15 pm

1 stop25h 00m

$440

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Tue 7/28

5:45 am-6:10 pm

2 stops13h 25m

Seattle/Tacoma Intl

Tue 8/11

10:03 am-11:15 pm

2 stops12h 12m

$442

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Sat 8/22

5:45 am-3:32 pm

2 stops34h 47m

Seattle/Tacoma Intl

Mon 8/31

7:07 pm-11:15 pm

2 stops27h 08m

$444

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Thu 7/23

5:45 am-6:10 pm

2 stops13h 25m

Seattle/Tacoma Intl

Mon 8/3

9:18 pm-11:15 pm

2 stops24h 57m

$449

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Thu 5/21

5:45 am-7:16 pm

1 stop14h 31m

Seattle/Tacoma Intl

Thu 5/28

8:00 am-11:15 pm

1 stop14h 15m

$455

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Wed 4/22

4:35 pm-10:03 pm

1 stop30h 28m

Seattle/Tacoma Intl

Mon 4/27

9:06 pm-11:15 pm

1 stop25h 09m

$459

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 San José 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 San José and Seattle?

What is the cheapest month to fly to Seattle?

In general, October is the cheapest month to fly from San José to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $459. If you don’t want to visit Seattle in October, then you should wait until September to fly from San José, when ticket prices are also cheap, with an average price of $492.

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

You are more likely to see cheaper flights to Seattle from San José when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $543 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from San José for as low as $471 on momondo.

Can stopping save me money on San José to Seattle flights?

You could potentially save up to 28% on your flight if you consider stops on a San José to Seattle flight.

How have San José to Seattle flight prices changed over time?

As of April 2026, prices for San José to Seattle flights are approximately 15% more expensive when compared to flights at the same time last year.

When to book flights from San José to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from San José to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San José to Seattle (SJO to SEA) flight deals and tips

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

Fastest flight time

10h 47m

Direct flights

None
The fastest flight from San José to Seattle takes 10h 47m
There are no direct flights from San José to Seattle. There are no popular flight routes from San José to Seattle.
Search flight deals

Frequently asked questions about flying from San José to Seattle

  • How far is San José Juan Santamaria Intl to Seattle/Tacoma Intl by plane?

    San José Juan Santamaria Intl and Seattle/Tacoma Intl are 3420.5 mi apart from one another. 10h 47m is a normal flight duration for this route.

  • When did momondo last update prices for flights from San José Juan Santamaria Intl Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from San José Juan Santamaria Intl Airport to Seattle/Tacoma Intl Airport refresh daily.

  • How many operators does momondo search for flights from San José Juan Santamaria Intl Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from San José Juan Santamaria Intl 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 San José Juan Santamaria Intl Airport to Seattle/Tacoma Intl Airport.

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

    The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from San José to Seattle?

  • What is the most popular airline from San José to Seattle?

Best airlines flying from San José to Seattle

Compare and see reviews for airlines that fly from San José to Seattle with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $376Free CancellationRating
7.1
11,557 reviews
Search American Airlines flights
United AirlinesPriceFrom $416Free CancellationRating
7.4
9,542 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $447Free CancellationRating
7.9
12,162 reviews
Search Alaska Airlines flights

Traveling to a place near Seattle?

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

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from San José to Seattle. Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to Seattle from San José which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from San José to Seattle?

Once all potential San José to Seattle flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for San José to Seattle flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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