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Cheap flights from Seattle to San José from $164

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 1/20. 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
8:00 am - 11:15 pm
SEA
-
SJO
14h 15m1 stop
Multiple Airlines Logo
5:45 am - 8:22 pm
SJO
-
SEA
15h 37m1 stop
$347Multiple Airlines
Thu, May 14 - Thu, May 28
Multiple Airlines Logo
6:10 am - 11:15 pm
SEA
-
SJO
15h 05m2 stops
Multiple Airlines Logo
6:00 am - 8:58 pm
SJO
-
SEA
16h 58m2 stops
$351Multiple Airlines
Tue, Feb 24 - Tue, Mar 3
American Airlines Logo
8:04 am - 10:30 pm
SEA
-
SJO
12h 26m1 stop
American Airlines Logo
6:00 am - 11:42 pm
SJO
-
SEA
19h 42m1 stop
$359American Airlines
Tue, Feb 3 - Tue, Feb 10
Multiple Airlines Logo
9:08 am - 11:15 pm
SEA
-
SJO
13h 07m2 stops
Multiple Airlines Logo
6:10 am - 6:51 pm
SJO
-
SEA
13h 41m2 stops
$362Multiple Airlines
Tue, Apr 7 - Tue, Apr 14
American Airlines Logo
8:04 am - 10:30 pm
SEA
-
SJO
12h 26m1 stop
American Airlines Logo
6:00 am - 8:45 pm
SJO
-
SEA
16h 45m2 stops
$364American Airlines
Tue, Feb 3 - Tue, Feb 10
Multiple Airlines Logo
6:20 am - 11:15 pm
SEA
-
SJO
14h 55m2 stops
Multiple Airlines Logo
6:00 am - 5:52 pm
SJO
-
SEA
13h 52m2 stops
$367Multiple Airlines
Tue, Feb 3 - Tue, Feb 10
Multiple Airlines Logo
9:06 pm - 11:15 pm
SEA
-
SJO
25h 09m2 stops
Multiple Airlines Logo
6:10 am - 7:53 pm
SJO
-
SEA
14h 43m2 stops
$369Multiple Airlines
Fri, May 1 - Thu, May 7
Multiple Airlines Logo
6:10 am - 11:15 pm
SEA
-
SJO
15h 05m2 stops
Multiple Airlines Logo
6:00 am - 9:01 pm
SJO
-
SEA
17h 01m3 stops
$373Multiple Airlines
Tue, Feb 24 - Tue, Mar 3
Multiple Airlines Logo
9:27 am - 7:45 am
SEA
-
SJO
20h 18m2 stops
Multiple Airlines Logo
6:00 am - 8:58 pm
SJO
-
SEA
16h 58m2 stops
$374Multiple Airlines
Mon, Feb 23 - Thu, Feb 26
Multiple Airlines Logo
9:27 am - 7:45 am
SEA
-
SJO
20h 18m2 stops
Multiple Airlines Logo
5:00 am - 5:00 pm
SJO
-
SEA
14h 00m2 stops
$376Multiple Airlines
Mon, Feb 23 - Wed, Mar 4

Delta flights from Seattle to San José

Our best Delta deals on Seattle to San José flight tickets
Delta
Feb 23
SEA6:15 amSeattle/Tacoma Intl
13h 47m
1 stop
SJO10:02 pmSan José Juan Santamaria Intl
Feb 26
SJO7:00 amSan José Juan Santamaria Intl
18h 12m
1 stop
SEA11:12 pmSeattle/Tacoma Intl
$377
Find similar
Delta
Feb 26
SEA6:15 amSeattle/Tacoma Intl
13h 47m
1 stop
SJO10:02 pmSan José Juan Santamaria Intl
Mar 5
SJO7:00 amSan José Juan Santamaria Intl
18h 12m
1 stop
SEA11:12 pmSeattle/Tacoma Intl
$413
Find similar
Delta
Jan 12
SEA6:15 amSeattle/Tacoma Intl
14h 00m
1 stop
SJO10:15 pmSan José Juan Santamaria Intl
Jan 18
SJO7:00 amSan José Juan Santamaria Intl
17h 50m
1 stop
SEA10:50 pmSeattle/Tacoma Intl
$481
Find similar

Avianca flights from Seattle to San José

Our best Avianca deals on Seattle to San José flight tickets
Avianca
Jan 26
SEA8:10 amSeattle/Tacoma Intl
21h 35m
2 stops
SJO7:45 amSan José Juan Santamaria Intl
Jan 30
SJO5:00 amSan José Juan Santamaria Intl
17h 57m
2 stops
SEA8:57 pmSeattle/Tacoma Intl
$388
Find similar
Avianca
Jan 8
SEA8:10 amSeattle/Tacoma Intl
17h 40m
1 stop
SJO3:50 amSan José Juan Santamaria Intl
Jan 29
SJO4:15 pmSan José Juan Santamaria Intl
30h 42m
2 stops
SEA8:57 pmSeattle/Tacoma Intl
$434
Find similar
Avianca
Jan 8
SEA7:00 amSeattle/Tacoma Intl
14h 40m
2 stops
SJO11:40 pmSan José Juan Santamaria Intl
Jan 29
SJO5:00 amSan José Juan Santamaria Intl
17h 57m
2 stops
SEA8:57 pmSeattle/Tacoma Intl
$444
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 January 6, 2026.
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

Thu 5/14

8:00 am-11:15 pm

1 stop14h 15m

San José Juan Santamaria Intl

Thu 5/28

5:45 am-8:22 pm

1 stop15h 37m

$347

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Tue 2/24

6:10 am-11:15 pm

2 stops15h 05m

San José Juan Santamaria Intl

Tue 3/3

6:00 am-8:58 pm

2 stops16h 58m

$351

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Tue 2/3

8:04 am-10:30 pm

1 stop12h 26m

San José Juan Santamaria Intl

Tue 2/10

6:00 am-11:42 pm

1 stop19h 42m

$359

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Tue 4/7

9:08 am-11:15 pm

2 stops13h 07m

San José Juan Santamaria Intl

Tue 4/14

6:10 am-6:51 pm

2 stops13h 41m

$362

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Tue 2/3

8:04 am-10:30 pm

1 stop12h 26m

San José Juan Santamaria Intl

Tue 2/10

6:00 am-8:45 pm

2 stops16h 45m

$364

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Tue 2/3

6:20 am-11:15 pm

2 stops14h 55m

San José Juan Santamaria Intl

Tue 2/10

6:00 am-5:52 pm

2 stops13h 52m

$367

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Fri 5/1

9:06 pm-11:15 pm

2 stops25h 09m

San José Juan Santamaria Intl

Thu 5/7

6:10 am-7:53 pm

2 stops14h 43m

$369

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Tue 2/24

6:10 am-11:15 pm

2 stops15h 05m

San José Juan Santamaria Intl

Tue 3/3

6:00 am-9:01 pm

3 stops17h 01m

$373

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Mon 2/23

9:27 am-7:45 am

2 stops20h 18m

San José Juan Santamaria Intl

Thu 2/26

6:00 am-8:58 pm

2 stops16h 58m

$374

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Mon 2/23

9:27 am-7:45 am

2 stops20h 18m

San José Juan Santamaria Intl

Wed 3/4

5:00 am-5:00 pm

2 stops14h 00m

$376

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 $502.

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 $614 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 $536 on momondo.

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

You could potentially save up to 32% 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 January 2026, prices for Seattle to San José flights are approximately 26% 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

Fastest flight time

12h 29m

Direct flights

None
The fastest flight from Seattle to San José takes 12h 29m
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 12h 29m.

  • 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
2,498 reviews
Search Avianca flights
DeltaPriceFrom $280Free CancellationRating
7.9
8,017 reviews
Search Delta flights
Alaska AirlinesPriceFrom $393Free CancellationRating
8.0
11,648 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $394Free CancellationRating
7.2
11,083 reviews
Search American Airlines flights
United AirlinesPriceFrom $412Free CancellationRating
7.4
9,132 reviews
Search United Airlines flights
SouthwestPriceFrom $568Free CancellationRating
8.0
4,247 reviews
Search Southwest flights
AeromexicoPriceFrom $809Free CancellationRating
7.4
1,611 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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