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Cheap flights from Seattle to San José from $136

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to San José departing on 2/27. 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 Seattle to San José

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:45 am - 11:15 pm
SEA
-
SJO
12h 30m2 stops
Multiple Airlines Logo
6:10 am - 7:54 pm
SJO
-
SEA
14h 44m2 stops
$391Multiple Airlines
Tue, Mar 31 - Tue, Apr 14
Multiple Airlines Logo
8:06 am - 8:40 am
SEA
-
SJO
22h 34m2 stops
Multiple Airlines Logo
5:45 am - 8:52 pm
SJO
-
SEA
17h 07m2 stops
$392Multiple Airlines
Fri, Jan 23 - Sun, Jan 25
Delta Logo
6:05 am - 10:02 pm
SEA
-
SJO
13h 57m1 stop
Delta Logo
7:25 am - 6:21 pm
SJO
-
SEA
11h 56m1 stop
$394Delta
Sun, Feb 22 - Sat, Mar 14
American Airlines Logo
7:15 am - 8:13 pm
SEA
-
SJO
10h 58m1 stop
American Airlines Logo
3:55 pm - 11:00 am
SJO
-
SEA
21h 05m2 stops
$395American Airlines
Fri, Feb 20 - Tue, Feb 24
American Airlines Logo
8:04 am - 10:30 pm
SEA
-
SJO
12h 26m1 stop
American Airlines Logo
7:45 am - 10:15 pm
SJO
-
SEA
16h 30m2 stops
$396American Airlines
Tue, Feb 10 - Tue, Feb 24
American Airlines Logo
7:15 am - 8:13 pm
SEA
-
SJO
10h 58m1 stop
American Airlines Logo
11:35 pm - 7:29 pm
SJO
-
SEA
20h 54m1 stop
$397American Airlines
Fri, Feb 20 - Sun, Mar 8
Multiple Airlines Logo
3:57 pm - 1:40 pm
SEA
-
SJO
19h 43m2 stops
Multiple Airlines Logo
3:05 pm - 11:01 am
SJO
-
SEA
21h 56m2 stops
$398Multiple Airlines
Tue, Jan 27 - Sun, Feb 1
Multiple Airlines Logo
7:15 am - 11:15 pm
SEA
-
SJO
15h 00m2 stops
Multiple Airlines Logo
7:45 am - 10:04 pm
SJO
-
SEA
15h 19m1 stop
$399Multiple Airlines
Thu, Mar 12 - Mon, Mar 16
Southwest Logo
5:15 am - 7:30 pm
SEA
-
SJO
12h 15m2 stops
Southwest Logo
9:40 am - 10:35 pm
SJO
-
SEA
14h 55m2 stops
$400Southwest
Fri, Jan 23 - Wed, Feb 4
Multiple Airlines Logo
6:53 pm - 11:25 am
SEA
-
SJO
14h 32m2 stops
Multiple Airlines Logo
6:00 am - 10:46 pm
SJO
-
SEA
18h 46m2 stops
$402Multiple Airlines
Sat, Jan 17 - Sat, Jan 31

American Airlines flights from Seattle to San José

Our best American Airlines deals on Seattle to San José flight tickets
American Airlines
Feb 20
SEA7:15 amSeattle/Tacoma Intl
10h 58m
1 stop
SJO8:13 pmSan José Juan Santamaria Intl
Feb 24
SJO3:55 pmSan José Juan Santamaria Intl
21h 05m
2 stops
SEA11:00 amSeattle/Tacoma Intl
$395
Find similar
American Airlines
Feb 10
SEA8:04 amSeattle/Tacoma Intl
12h 26m
1 stop
SJO10:30 pmSan José Juan Santamaria Intl
Feb 24
SJO7:45 amSan José Juan Santamaria Intl
16h 30m
2 stops
SEA10:15 pmSeattle/Tacoma Intl
$396
Find similar
American Airlines
Feb 20
SEA7:15 amSeattle/Tacoma Intl
10h 58m
1 stop
SJO8:13 pmSan José Juan Santamaria Intl
Mar 8
SJO11:35 pmSan José Juan Santamaria Intl
20h 54m
1 stop
SEA7:29 pmSeattle/Tacoma Intl
$397
Find similar

Southwest flights from Seattle to San José

Our best Southwest deals on Seattle to San José flight tickets
Southwest
Jan 23
SEA5:15 amSeattle/Tacoma Intl
12h 15m
2 stops
SJO7:30 pmSan José Juan Santamaria Intl
Feb 4
SJO9:40 amSan José Juan Santamaria Intl
14h 55m
2 stops
SEA10:35 pmSeattle/Tacoma Intl
$400
Find similar
Southwest
Dec 13
SEA5:00 amSeattle/Tacoma Intl
13h 10m
1 stop
SJO8:10 pmSan José Juan Santamaria Intl
Dec 19
SJO9:00 amSan José Juan Santamaria Intl
16h 40m
2 stops
SEA11:40 pmSeattle/Tacoma Intl
$471
Find similar
Southwest
Dec 13
SEA12:20 pmSeattle/Tacoma Intl
22h 55m
2 stops
SJO1:15 pmSan José Juan Santamaria Intl
Dec 19
SJO9:00 amSan José Juan Santamaria Intl
16h 40m
2 stops
SEA11:40 pmSeattle/Tacoma Intl
$516
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to San José 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 December 11, 2025.
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

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Tue 3/31

9:45 am-11:15 pm

2 stops12h 30m

San José Juan Santamaria Intl

Tue 4/14

6:10 am-7:54 pm

2 stops14h 44m

$391

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Fri 1/23

8:06 am-8:40 am

2 stops22h 34m

San José Juan Santamaria Intl

Sun 1/25

5:45 am-8:52 pm

2 stops17h 07m

$392

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Sun 2/22

6:05 am-10:02 pm

1 stop13h 57m

San José Juan Santamaria Intl

Sat 3/14

7:25 am-6:21 pm

1 stop11h 56m

$394

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Fri 2/20

7:15 am-8:13 pm

1 stop10h 58m

San José Juan Santamaria Intl

Tue 2/24

3:55 pm-11:00 am

2 stops21h 05m

$395

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Tue 2/10

8:04 am-10:30 pm

1 stop12h 26m

San José Juan Santamaria Intl

Tue 2/24

7:45 am-10:15 pm

2 stops16h 30m

$396

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Fri 2/20

7:15 am-8:13 pm

1 stop10h 58m

San José Juan Santamaria Intl

Sun 3/8

11:35 pm-7:29 pm

1 stop20h 54m

$397

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Tue 1/27

3:57 pm-1:40 pm

2 stops19h 43m

San José Juan Santamaria Intl

Sun 2/1

3:05 pm-11:01 am

2 stops21h 56m

$398

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Thu 3/12

7:15 am-11:15 pm

2 stops15h 00m

San José Juan Santamaria Intl

Mon 3/16

7:45 am-10:04 pm

1 stop15h 19m

$399

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Fri 1/23

5:15 am-7:30 pm

2 stops12h 15m

San José Juan Santamaria Intl

Wed 2/4

9:40 am-10:35 pm

2 stops14h 55m

$400

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Sat 1/17

6:53 pm-11:25 am

2 stops14h 32m

San José Juan Santamaria Intl

Sat 1/31

6:00 am-10:46 pm

2 stops18h 46m

$402

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 cheapest month to fly to San José?

In general, October 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 $495. If you don’t want to visit San José in October, then you should wait until September to fly from Seattle, when ticket prices are also cheap, with an average price of $499.

What is the cheapest day to depart on your flight to San José?

On average, the least expensive day to fly to San José from Seattle is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $576. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Seattle to San José on a Friday will generally be more expensive and average around $782. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Our data shows that the cheapest Seattle to San José flights are usually those with departure times at noon. Our users have found flights to San José at noon for as low as $658. Flights in the morning are often more expensive with an average ticket price of $693.

How far in advance should I book a flight 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 $626 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 $535 on momondo.

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

You could potentially save up to 9% 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 December 2025, prices for Seattle to San José flights are approximately 6% more expensive 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

Fastest flight time

9h 12m

Direct flights

None
The fastest flight from Seattle to San José takes 9h 12m
There are no direct flights from Seattle to San José. There are no popular flight routes from Seattle to San José.
Search flight deals

  • 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 9h 12m.

  • 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
AviancaPriceFrom $152Free CancellationRating
6.6
2,480 reviews
Search Avianca flights
DeltaPriceFrom $280Free CancellationRating
7.9
8,005 reviews
Search Delta flights
American AirlinesPriceFrom $400Free CancellationRating
7.2
11,050 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $403Free CancellationRating
8.0
11,431 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $413Free CancellationRating
7.4
9,095 reviews
Search United Airlines flights
Copa AirlinesPriceFrom $416Free CancellationRating
7.6
1,558 reviews
Search Copa Airlines flights
SouthwestPriceFrom $568Free CancellationRating
7.9
4,253 reviews
Search Southwest flights
AeromexicoPriceFrom $809Free CancellationRating
7.4
1,643 reviews
Search Aeromexico 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
Dominical
Santa Elena
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

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.
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