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Cheap flights from San José to Seattle from $180

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 3/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
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.
American Airlines Logo
7:00 am - 12:24 am
SJO
-
SEA
19h 24m
1 stop
American Airlines Logo
12:07 am - 8:12 pm
SEA
-
SJO
18h 05m
1 stop
$342American Airlines
Thu, Feb 19 - Tue, Feb 24
Multiple Airlines Logo
5:05 am - 5:38 pm
SJO
-
SEA
13h 33m
2 stops
Multiple Airlines Logo
7:40 am - 11:15 pm
SEA
-
SJO
14h 35m
2 stops
$351Multiple Airlines
Mon, May 4 - Tue, May 12
Multiple Airlines Logo
5:45 am - 6:40 pm
SJO
-
SEA
13h 55m
2 stops
Multiple Airlines Logo
7:15 pm - 8:45 am
SEA
-
SJO
12h 30m
2 stops
$360Multiple Airlines
Thu, Apr 23 - Sun, May 3
American Airlines Logo
6:00 am - 11:49 pm
SJO
-
SEA
19h 49m
1 stop
American Airlines Logo
12:07 am - 8:12 pm
SEA
-
SJO
18h 05m
1 stop
$366American Airlines
Mon, Feb 9 - Mon, Feb 16
American Airlines Logo
10:25 am - 11:40 pm
SJO
-
SEA
14h 15m
1 stop
American Airlines Logo
11:59 pm - 1:55 pm
SEA
-
SJO
12h 56m
1 stop
$371American Airlines
Tue, Mar 17 - Tue, Mar 24
Multiple Airlines Logo
6:00 am - 6:57 pm
SJO
-
SEA
14h 57m
1 stop
Multiple Airlines Logo
6:10 am - 11:15 pm
SEA
-
SJO
15h 05m
1 stop
$373Multiple Airlines
Tue, Feb 24 - Tue, Mar 3
Multiple Airlines Logo
6:00 am - 6:57 pm
SJO
-
SEA
14h 57m
2 stops
Multiple Airlines Logo
6:10 am - 11:15 pm
SEA
-
SJO
15h 05m
2 stops
$374Multiple Airlines
Tue, Feb 24 - Tue, Mar 3
Multiple Airlines Logo
9:40 am - 9:29 am
SJO
-
SEA
24h 49m
2 stops
Multiple Airlines Logo
6:06 pm - 8:45 am
SEA
-
SJO
13h 39m
2 stops
$375Multiple Airlines
Thu, Apr 30 - Mon, May 4
Multiple Airlines Logo
12:40 pm - 9:29 am
SJO
-
SEA
21h 49m
3 stops
Multiple Airlines Logo
6:25 am - 11:40 pm
SEA
-
SJO
16h 15m
2 stops
$376Multiple Airlines
Mon, May 4 - Tue, May 12
Multiple Airlines Logo
5:05 am - 5:38 pm
SJO
-
SEA
13h 33m
2 stops
Multiple Airlines Logo
7:06 pm - 8:45 am
SEA
-
SJO
12h 39m
2 stops
$379Multiple Airlines
Wed, Apr 22 - Mon, Apr 27

American Airlines flights from San José to Seattle

Our best American Airlines deals on San José to Seattle flight tickets
American Airlines
Feb 19
SJO7:00 amSan José Juan Santamaria Intl
19h 24m
1 stop
SEA12:24 amSeattle/Tacoma Intl
Feb 24
SEA12:07 amSeattle/Tacoma Intl
18h 05m
1 stop
SJO8:12 pmSan José Juan Santamaria Intl
$342
American Airlines
Feb 9
SJO6:00 amSan José Juan Santamaria Intl
19h 49m
1 stop
SEA11:49 pmSeattle/Tacoma Intl
Feb 16
SEA12:07 amSeattle/Tacoma Intl
18h 05m
1 stop
SJO8:12 pmSan José Juan Santamaria Intl
$366
American Airlines
Mar 17
SJO10:25 amSan José Juan Santamaria Intl
14h 15m
1 stop
SEA11:40 pmSeattle/Tacoma Intl
Mar 24
SEA11:59 pmSeattle/Tacoma Intl
12h 56m
1 stop
SJO1:55 pmSan José Juan Santamaria Intl
$371

Alaska Airlines flights from San José to Seattle

Our best Alaska Airlines deals on San José to Seattle flight tickets
Alaska Airlines
Mar 5
SJO1:27 amSan José Juan Santamaria Intl
19h 30m
1 stop
SEA6:57 pmSeattle/Tacoma Intl
Mar 8
SEA9:14 pmSeattle/Tacoma Intl
25h 54m
1 stop
SJO12:08 amSan José Juan Santamaria Intl
$445
Alaska Airlines
Apr 22
SJO12:55 amSan José Juan Santamaria Intl
11h 57m
1 stop
SEA11:52 amSeattle/Tacoma Intl
May 3
SEA10:48 pmSeattle/Tacoma Intl
23h 57m
2 stops
SJO11:45 pmSan José Juan Santamaria Intl
$446
Alaska Airlines
Apr 29
SJO12:55 amSan José Juan Santamaria Intl
14h 09m
1 stop
SEA2:04 pmSeattle/Tacoma Intl
May 4
SEA7:40 amSeattle/Tacoma Intl
15h 05m
1 stop
SJO11:45 pmSan José Juan Santamaria Intl
$449

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 January 28, 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

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Thu 2/19

7:00 am-12:24 am

1 stop19h 24m

Seattle/Tacoma Intl

Tue 2/24

12:07 am-8:12 pm

1 stop18h 05m

$342

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Mon 5/4

5:05 am-5:38 pm

2 stops13h 33m

Seattle/Tacoma Intl

Tue 5/12

7:40 am-11:15 pm

2 stops14h 35m

$351

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Thu 4/23

5:45 am-6:40 pm

2 stops13h 55m

Seattle/Tacoma Intl

Sun 5/3

7:15 pm-8:45 am

2 stops12h 30m

$360

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Mon 2/9

6:00 am-11:49 pm

1 stop19h 49m

Seattle/Tacoma Intl

Mon 2/16

12:07 am-8:12 pm

1 stop18h 05m

$366

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Tue 3/17

10:25 am-11:40 pm

1 stop14h 15m

Seattle/Tacoma Intl

Tue 3/24

11:59 pm-1:55 pm

1 stop12h 56m

$371

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Tue 2/24

6:00 am-6:57 pm

1 stop14h 57m

Seattle/Tacoma Intl

Tue 3/3

6:10 am-11:15 pm

1 stop15h 05m

$373

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Tue 2/24

6:00 am-6:57 pm

2 stops14h 57m

Seattle/Tacoma Intl

Tue 3/3

6:10 am-11:15 pm

2 stops15h 05m

$374

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Thu 4/30

9:40 am-9:29 am

2 stops24h 49m

Seattle/Tacoma Intl

Mon 5/4

6:06 pm-8:45 am

2 stops13h 39m

$375

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Mon 5/4

12:40 pm-9:29 am

3 stops21h 49m

Seattle/Tacoma Intl

Tue 5/12

6:25 am-11:40 pm

2 stops16h 15m

$376

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Wed 4/22

5:05 am-5:38 pm

2 stops13h 33m

Seattle/Tacoma Intl

Mon 4/27

7:06 pm-8:45 am

2 stops12h 39m

$379

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 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 $476. 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 $503.

What is the cheapest San José Juan Santamaria Intl to Seattle/Tacoma Intl flight route?

Fly from San José Juan Santamaria Intl to Seattle/Tacoma Intl for the best San José Juan Santamaria Intl - 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 San José when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $544 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 $444 on momondo.

What cabin class options are available on San José Juan Santamaria Intl to Seattle/Tacoma Intl flights?

There is only 1 cabin class available to choose from on San José Juan Santamaria Intl 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 San José to Seattle flight prices changed over time?

As of January 2026, prices for San José to Seattle flights are approximately 12% cheaper 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

13h 33m

Direct flights

None
The fastest flight from San José to Seattle takes 13h 33m
There are no direct flights from San José to Seattle. There are no popular flight routes from San José to Seattle.
Search flight deals

  • 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. 13h 33m 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 $398Free CancellationRating
7.2
11,201 reviews
Search American Airlines flights
United AirlinesPriceFrom $426Free CancellationRating
7.4
9,208 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $447Free CancellationRating
8.0
11,800 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
Marysville
Puyallup
Redmond
Cle Elum
Tukwila
Lakewood
Federal Way
Centralia
Westport
Kirkland
Fife
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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