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Cheap flights from Seattle to San José from $214

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 9/8. 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
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.
American Airlines Logo
5:24 am - 10:59 pm
SEA
-
SJO
15h 35m
1 stop
American Airlines Logo
2:40 pm - 12:55 am
SJO
-
SEA
12h 15m
1 stop
$480American Airlines
Thu, Nov 26 - Sat, Dec 5
American Airlines Logo
11:16 pm - 1:52 pm
SEA
-
SJO
13h 36m
1 stop
American Airlines Logo
2:57 pm - 10:09 am
SJO
-
SEA
20h 12m
2 stops
$485American Airlines
Mon, Aug 31 - Wed, Sep 9
Southwest Logo
2:15 pm - 6:00 am
SEA
-
SJO
14h 45m
1 stop
Southwest Logo
1:30 pm - 1:35 am
SJO
-
SEA
13h 05m
2 stops
$486Southwest
Mon, Oct 19 - Mon, Oct 26
American Airlines Logo
3:51 pm - 2:10 pm
SEA
-
SJO
20h 19m
1 stop
American Airlines Logo
6:22 am - 12:58 am
SJO
-
SEA
20h 36m
1 stop
$492American Airlines
Mon, Nov 2 - Thu, Nov 19
American Airlines Logo
5:30 am - 8:07 pm
SEA
-
SJO
13h 37m
2 stops
American Airlines Logo
1:00 pm - 9:25 am
SJO
-
SEA
21h 25m
1 stop
$496American Airlines
Fri, Sep 11 - Fri, Sep 25
American Airlines Logo
12:40 am - 1:52 pm
SEA
-
SJO
12h 12m
1 stop
American Airlines Logo
1:00 pm - 9:25 am
SJO
-
SEA
21h 25m
1 stop
$517American Airlines
Thu, Sep 3 - Fri, Sep 11
Multiple Airlines Logo
6:03 am - 11:15 pm
SEA
-
SJO
16h 12m
1 stop
Multiple Airlines Logo
7:45 am - 10:00 pm
SJO
-
SEA
15h 15m
1 stop
$525Multiple Airlines
Sat, Aug 8 - Mon, Aug 31
Southwest Logo
8:30 pm - 6:25 am
SEA
-
SJO
8h 55m
1 stop
Southwest Logo
12:55 pm - 12:55 am
SJO
-
SEA
13h 00m
1 stop
$526Southwest
Sun, Oct 18 - Mon, Oct 19
Southwest Logo
7:25 pm - 12:45 pm
SEA
-
SJO
16h 20m
2 stops
Southwest Logo
12:35 pm - 11:35 pm
SJO
-
SEA
12h 00m
1 stop
$531Southwest
Mon, Sep 7 - Sun, Sep 20
Multiple Airlines Logo
6:03 am - 11:15 pm
SEA
-
SJO
16h 12m
2 stops
Multiple Airlines Logo
5:45 am - 6:10 pm
SJO
-
SEA
13h 25m
2 stops
$532Multiple Airlines
Tue, Aug 11 - Tue, Aug 18

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American Airlines flights from Seattle to San José

Our best American Airlines deals on Seattle to San José flight tickets
American Airlines
Nov 26
SEA10:35 amSeattle/Tacoma Intl
10h 24m
1 stop
SJO10:59 pmSan José Juan Santamaria Intl
Dec 10
SJO2:40 pmSan José Juan Santamaria Intl
12h 15m
1 stop
SEA12:55 amSeattle/Tacoma Intl
$480
American Airlines
Aug 30
SEA12:40 amSeattle/Tacoma Intl
12h 12m
1 stop
SJO1:52 pmSan José Juan Santamaria Intl
Sep 9
SJO2:57 pmSan José Juan Santamaria Intl
20h 12m
2 stops
SEA10:09 amSeattle/Tacoma Intl
$485
American Airlines
Nov 2
SEA3:51 pmSeattle/Tacoma Intl
20h 19m
1 stop
SJO2:10 pmSan José Juan Santamaria Intl
Nov 19
SJO6:22 amSan José Juan Santamaria Intl
20h 36m
1 stop
SEA12:58 amSeattle/Tacoma Intl
$492

United Airlines flights from Seattle to San José

Our best United Airlines deals on Seattle to San José flight tickets
United Airlines
Jun 27
SEA7:05 pmSeattle/Tacoma Intl
11h 10m
1 stop
SJO7:15 amSan José Juan Santamaria Intl
Jul 1
SJO8:45 amSan José Juan Santamaria Intl
11h 02m
1 stop
SEA6:47 pmSeattle/Tacoma Intl
$568
United Airlines
Jun 26
SEA11:55 amSeattle/Tacoma Intl
9h 44m
1 stop
SJO10:39 pmSan José Juan Santamaria Intl
Jun 28
SJO7:55 amSan José Juan Santamaria Intl
12h 17m
1 stop
SEA7:12 pmSeattle/Tacoma Intl
$569
United Airlines
Sep 11
SEA7:00 amSeattle/Tacoma Intl
11h 37m
1 stop
SJO7:37 pmSan José Juan Santamaria Intl
Sep 19
SJO7:55 amSan José Juan Santamaria Intl
13h 48m
2 stops
SEA8:43 pmSeattle/Tacoma Intl
$573

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 June 21, 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

Cheapest round-trip

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Thu 11/26

5:24 am-10:59 pm

1 stop15h 35m

San José Juan Santamaria Intl

Sat 12/5

2:40 pm-12:55 am

1 stop12h 15m

$480

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Mon 8/31

11:16 pm-1:52 pm

1 stop13h 36m

San José Juan Santamaria Intl

Wed 9/9

2:57 pm-10:09 am

2 stops20h 12m

$485

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Mon 10/19

2:15 pm-6:00 am

1 stop14h 45m

San José Juan Santamaria Intl

Mon 10/26

1:30 pm-1:35 am

2 stops13h 05m

$486

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Mon 11/2

3:51 pm-2:10 pm

1 stop20h 19m

San José Juan Santamaria Intl

Thu 11/19

6:22 am-12:58 am

1 stop20h 36m

$492

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Fri 9/11

5:30 am-8:07 pm

2 stops13h 37m

San José Juan Santamaria Intl

Fri 9/25

1:00 pm-9:25 am

1 stop21h 25m

$496

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Thu 9/3

12:40 am-1:52 pm

1 stop12h 12m

San José Juan Santamaria Intl

Fri 9/11

1:00 pm-9:25 am

1 stop21h 25m

$517

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Sat 8/8

6:03 am-11:15 pm

1 stop16h 12m

San José Juan Santamaria Intl

Mon 8/31

7:45 am-10:00 pm

1 stop15h 15m

$525
Quickest round-trip

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Sun 10/18

8:30 pm-6:25 am

1 stop8h 55m

San José Juan Santamaria Intl

Mon 10/19

12:55 pm-12:55 am

1 stop13h 00m

$526

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Mon 9/7

7:25 pm-12:45 pm

2 stops16h 20m

San José Juan Santamaria Intl

Sun 9/20

12:35 pm-11:35 pm

1 stop12h 00m

$531

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Tue 8/11

6:03 am-11:15 pm

2 stops16h 12m

San José Juan Santamaria Intl

Tue 8/18

5:45 am-6:10 pm

2 stops13h 25m

$532

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?

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 $489. 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 $506.

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 $652 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 $612 on momondo.

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

You could potentially save up to 4% 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 June 2026, prices for Seattle to San José flights are approximately 10% 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 03m

Direct flights

None
The fastest flight from Seattle to San José takes 12h 03m
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 03m.

  • 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
DeltaPriceFrom $345Free CancellationRating
7.8
8,423 reviews
Search Delta flights
JetBluePriceFrom $362Free CancellationRating
7.1
2,990 reviews
Search JetBlue flights
American AirlinesPriceFrom $384Free CancellationRating
7.1
11,723 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $386Free CancellationRating
7.9
12,556 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $394Free CancellationRating
7.4
9,868 reviews
Search United Airlines flights
SouthwestPriceFrom $516Free CancellationRating
7.9
4,242 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
Dominical
San Gerardo de Dota
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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