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Cheap flights from Seattle to San José from $279

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to San José

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:20 am - 2:15 pmSEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
28h 55m1 stop Miami
Multiple Airlines Logo
7:45 am - 9:56 pmSJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
15h 11m1 stop Miami
$558Multiple Airlines
Tue, Mar 16 - Tue, Mar 30
Multiple Airlines Logo
8:13 am - 2:15 pmSEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
28h 02m1 stop Miami
Multiple Airlines Logo
7:00 am - 10:00 pmSJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
17h 00m1 stop Miami
$571Multiple Airlines
Thu, Jan 28 - Thu, Feb 4
Southwest Logo
11:30 am - 12:50 pmSEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
23h 20m2 stops Phoenix Sky Harbor Intl Denver Intl
Southwest Logo
1:05 pm - 11:00 pmSJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
11h 55m2 stops Houston Hobby Denver Intl
$607Southwest
Fri, Feb 26 - Mon, Mar 1
Southwest Logo
4:20 pm - 1:45 pmSEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
19h 25m2 stops Las Vegas Harry Reid Intl Houston Hobby
Southwest Logo
1:05 pm - 12:55 amSJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
13h 50m2 stops Houston Hobby Phoenix Sky Harbor Intl
$607Southwest
Mon, Feb 22 - Mon, Mar 8
Alaska Airlines Logo
11:10 am - 11:57 pmSEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
10h 47m1 stop Los Angeles
Alaska Airlines Logo
1:45 am - 1:49 pmSJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
14h 04m1 stop Los Angeles
$612Alaska Airlines
Thu, Feb 18 - Wed, Mar 10
Alaska Airlines Logo
8:05 am - 11:57 pmSEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
13h 52m1 stop Los Angeles
Alaska Airlines Logo
1:45 am - 1:56 pmSJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
14h 11m2 stops Los Angeles Portland
$617Alaska Airlines
Thu, Feb 18 - Wed, Mar 10
American Airlines Logo
5:43 pm - 1:49 pmSEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
18h 06m1 stop Dallas/Fort Worth
American Airlines Logo
12:25 am - 1:38 pmSJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
15h 13m1 stop Dallas/Fort Worth
$631American Airlines
Tue, Feb 16 - Wed, Feb 24
American Airlines Logo
3:51 pm - 1:49 pmSEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
19h 58m1 stop Dallas/Fort Worth
American Airlines Logo
12:25 am - 1:38 pmSJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
15h 13m1 stop Dallas/Fort Worth
$631American Airlines
Sun, Feb 21 - Fri, Feb 26
Delta Logo
6:00 am - 9:49 pmSEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
13h 49m1 stop Atlanta Hartsfield-Jackson
Delta Logo
3:55 pm - 10:05 amSJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
20h 10m1 stop Atlanta Hartsfield-Jackson
$631Delta
Sat, Jan 23 - Sat, Jan 30
Delta Logo
6:00 am - 9:49 pmSEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
13h 49m1 stop Atlanta Hartsfield-Jackson
Delta Logo
7:00 am - 11:25 pmSJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
18h 25m1 stop Atlanta Hartsfield-Jackson
$631Delta
Thu, Jan 21 - Tue, Jan 26

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Alaska Airlines flights from Seattle to San José

Our best Alaska Airlines deals on Seattle to San José flight tickets
Alaska Airlines
Jan 25
SEA6:57 pmSeattle/Tacoma Intl
26h 42m
2 stops
SJO11:39 pmSan José Juan Santamaria Intl
Feb 7
SJO1:23 amSan José Juan Santamaria Intl
13h 04m
1 stop
SEA12:27 pmSeattle/Tacoma Intl
$627
Alaska Airlines
Jan 25
SEA6:43 pmSeattle/Tacoma Intl
26h 56m
1 stop
SJO11:39 pmSan José Juan Santamaria Intl
Feb 7
SJO1:23 amSan José Juan Santamaria Intl
13h 04m
1 stop
SEA12:27 pmSeattle/Tacoma Intl
$630
Alaska Airlines
Feb 21
SEA10:17 amSeattle/Tacoma Intl
12h 04m
2 stops
SJO12:21 amSan José Juan Santamaria Intl
Feb 26
SJO1:41 amSan José Juan Santamaria Intl
14h 18m
2 stops
SEA1:59 pmSeattle/Tacoma Intl
$643

United Airlines flights from Seattle to San José

Our best United Airlines deals on Seattle to San José flight tickets
United Airlines
Dec 1
SEA7:30 pmSeattle/Tacoma Intl
11h 02m
1 stop
SJO8:32 amSan José Juan Santamaria Intl
Dec 8
SJO8:45 amSan José Juan Santamaria Intl
15h 13m
2 stops
SEA9:58 pmSeattle/Tacoma Intl
$666
United Airlines
Dec 1
SEA7:30 pmSeattle/Tacoma Intl
11h 02m
1 stop
SJO8:32 amSan José Juan Santamaria Intl
Dec 5
SJO9:40 amSan José Juan Santamaria Intl
13h 07m
1 stop
SEA8:47 pmSeattle/Tacoma Intl
$668
United Airlines
Nov 21
SEA11:59 pmSeattle/Tacoma Intl
18h 40m
1 stop
SJO8:39 pmSan José Juan Santamaria Intl
Nov 24
SJO9:40 amSan José Juan Santamaria Intl
10h 53m
1 stop
SEA6:33 pmSeattle/Tacoma Intl
$779

momondo Fare Finder

 
Use the filters below to find and compare flights from Seattle to San José that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleSan José

SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl

SEASJO

Seattle/Tacoma Intl

Tue 3/16

8:20 am-2:15 pm

1 stop28h 55m

San José Juan Santamaria Intl

Tue 3/30

7:45 am-9:56 pm

1 stop15h 11m

$558

SeattleSan José

SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl

SEASJO

Seattle/Tacoma Intl

Thu 1/28

8:13 am-2:15 pm

1 stop28h 02m

San José Juan Santamaria Intl

Thu 2/4

7:00 am-10:00 pm

1 stop17h 00m

$571

SeattleSan José

SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl

SEASJO

Seattle/Tacoma Intl

Fri 2/26

11:30 am-12:50 pm

2 stops23h 20m

San José Juan Santamaria Intl

Mon 3/1

1:05 pm-11:00 pm

2 stops11h 55m

$607

SeattleSan José

SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl

SEASJO

Seattle/Tacoma Intl

Mon 2/22

4:20 pm-1:45 pm

2 stops19h 25m

San José Juan Santamaria Intl

Mon 3/8

1:05 pm-12:55 am

2 stops13h 50m

$607
Quickest round-trip

SeattleSan José

SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl

SEASJO

Seattle/Tacoma Intl

Thu 2/18

11:10 am-11:57 pm

1 stop10h 47m

San José Juan Santamaria Intl

Wed 3/10

1:45 am-1:49 pm

1 stop14h 04m

$612

SeattleSan José

SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl

SEASJO

Seattle/Tacoma Intl

Thu 2/18

8:05 am-11:57 pm

1 stop13h 52m

San José Juan Santamaria Intl

Wed 3/10

1:45 am-1:56 pm

2 stops14h 11m

$617

SeattleSan José

SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl

SEASJO

Seattle/Tacoma Intl

Tue 2/16

5:43 pm-1:49 pm

1 stop18h 06m

San José Juan Santamaria Intl

Wed 2/24

12:25 am-1:38 pm

1 stop15h 13m

$631

SeattleSan José

SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl

SEASJO

Seattle/Tacoma Intl

Sun 2/21

3:51 pm-1:49 pm

1 stop19h 58m

San José Juan Santamaria Intl

Fri 2/26

12:25 am-1:38 pm

1 stop15h 13m

$631

SeattleSan José

SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl

SEASJO

Seattle/Tacoma Intl

Sat 1/23

6:00 am-9:49 pm

1 stop13h 49m

San José Juan Santamaria Intl

Sat 1/30

3:55 pm-10:05 am

1 stop20h 10m

$631

SeattleSan José

SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl

SEASJO

Seattle/Tacoma Intl

Thu 1/21

6:00 am-9:49 pm

1 stop13h 49m

San José Juan Santamaria Intl

Tue 1/26

7:00 am-11:25 pm

1 stop18h 25m

$631

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 San José from

How to get the cheapest flight ticket from Seattle to San José

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 Seattle and San José?

Prices are currently low for flights on this route.

Typical prices usually range from $598 to $779.
The lowest price recently found on this route was $558.

What is the cheapest month to fly to San José?

In general, January is the cheapest month to fly from Seattle to San José. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $601. If you don’t want to visit San José in January, then you should wait until September to fly from Seattle, when ticket prices are also cheap, with an average price of $652.

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

You are more likely to see cheaper flights to San José from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to San José for around $707 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San José from Seattle for as low as $661 on momondo.

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

You could potentially save up to 6% on your flight if you consider stops on a Seattle to San José flight.

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

As of November 2026, prices for Seattle to San José flights are approximately 7% cheaper when compared to flights at the same time last year.

When to book flights from Seattle to San José

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

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

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

Best Price Found

$279

Fastest flight time

12h 57m

Direct flights

None
The best one-way flight to San José from Seattle in the past 72 hours is $279. The best round-trip flight deal from Seattle to San José found on momondo in the last 72 hours is $558.
The fastest flight from Seattle to San José takes 12h 57m
There are no direct flights from Seattle to San José. There are no popular flight routes from Seattle to San José.
Search flight deals

Frequently asked questions about flying from Seattle to San José

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

    San José Juan Santamaria Intl is 3420.5 mi away from Seattle/Tacoma Intl. A reasonable flight in good conditions will take 12h 57m.

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

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

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

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

  • What documentation or ID do you need to fly to San José Juan Santamaria Intl Airport?

    The travel and health documents you'll need for your trip to San José Juan Santamaria Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San José Juan Santamaria Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from Seattle to San José

Compare and see reviews for airlines that fly from Seattle to San José with momondo
Airline
Rating
Free Cancellation
Price
JetBluePriceFrom $362Free CancellationRating
7.1
3,075 reviews
Search JetBlue flights
Air CanadaPriceFrom $384Free CancellationRating
7.1
11,894 reviews
Search Air Canada flights
Alaska AirlinesPriceFrom $392Free CancellationRating
7.9
13,159 reviews
Search Alaska Airlines flights
DeltaPriceFrom $396Free CancellationRating
7.8
8,722 reviews
Search Delta flights
United AirlinesPriceFrom $415Free CancellationRating
7.3
10,487 reviews
Search United Airlines flights
American AirlinesPriceFrom $416Free CancellationRating
7.0
12,235 reviews
Search American Airlines flights
SouthwestPriceFrom $506Free CancellationRating
8.0
4,223 reviews
Search Southwest flights

Traveling to a place near San José?

Book flights to San José if you plan to visit one of these locations
Manuel Antonio
Jacó
Monteverde
Alajuela
Heredia
Santa Elena
San Gerardo de Dota
Dominical
Esterillos Este

Why use momondo?

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

Finding the right flight to San José from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San José quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for Seattle to San José flights to just show those with flexible booking policies.

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

Once all potential Seattle to San José 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 Seattle to San José right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Seattle to San José now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San José and let you know when they change.

An easier way to manage your San José trip

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