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Cheap flights from Seattle to San José from $245

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 9/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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.
Southwest Logo
11:05 pm - 12:45 pm
SEA
-
SJO
12h 40m
2 stops
Southwest Logo
9:00 am - 11:35 pm
SJO
-
SEA
15h 35m
2 stops
$502Southwest
Tue, Sep 15 - Tue, Sep 29
Southwest Logo
8:55 am - 6:40 pm
SEA
-
SJO
8h 45m
1 stop
Southwest Logo
9:00 am - 11:35 pm
SJO
-
SEA
15h 35m
2 stops
$522Southwest
Wed, Aug 12 - Wed, Aug 26
Multiple Airlines Logo
5:55 pm - 11:45 am
SEA
-
SJO
15h 50m
3 stops
Multiple Airlines Logo
5:00 am - 4:57 pm
SJO
-
SEA
13h 57m
2 stops
$524Multiple Airlines
Wed, Nov 11 - Sun, Nov 15
Multiple Airlines Logo
5:59 pm - 11:45 am
SEA
-
SJO
16h 46m
3 stops
Multiple Airlines Logo
12:40 pm - 10:35 am
SJO
-
SEA
22h 55m
3 stops
$529Multiple Airlines
Fri, Sep 18 - Sat, Oct 3
Southwest Logo
6:40 am - 6:40 pm
SEA
-
SJO
11h 00m
2 stops
Southwest Logo
9:00 am - 11:25 pm
SJO
-
SEA
15h 25m
2 stops
$533Southwest
Tue, Aug 18 - Wed, Sep 2
Southwest Logo
6:40 am - 6:40 pm
SEA
-
SJO
11h 00m
2 stops
Southwest Logo
9:00 am - 11:35 pm
SJO
-
SEA
15h 35m
2 stops
$543Southwest
Wed, Sep 9 - Wed, Sep 16
Southwest Logo
8:00 pm - 6:00 am
SEA
-
SJO
9h 00m
1 stop
Southwest Logo
1:20 pm - 1:15 am
SJO
-
SEA
13h 55m
1 stop
$544Southwest
Mon, Oct 26 - Thu, Nov 5
Southwest Logo
6:40 am - 6:40 pm
SEA
-
SJO
11h 00m
2 stops
Southwest Logo
9:00 am - 11:05 pm
SJO
-
SEA
15h 05m
2 stops
$549Southwest
Tue, Aug 18 - Wed, Sep 2
Multiple Airlines Logo
5:04 pm - 8:19 am
SEA
-
SJO
14h 15m
2 stops
Multiple Airlines Logo
8:45 am - 9:51 pm
SJO
-
SEA
14h 06m
2 stops
$555Multiple Airlines
Mon, Aug 3 - Wed, Sep 9
Southwest Logo
6:10 pm - 12:45 pm
SEA
-
SJO
17h 35m
2 stops
Southwest Logo
9:00 am - 11:35 pm
SJO
-
SEA
15h 35m
2 stops
$559Southwest
Wed, Aug 12 - Wed, Aug 26

Alaska Airlines flights from Seattle to San José

Our best Alaska Airlines deals on Seattle to San José flight tickets
Alaska Airlines
Jun 2
SEA9:02 amSeattle/Tacoma Intl
13h 31m
1 stop
SJO11:33 pmSan José Juan Santamaria Intl
Jun 8
SJO12:53 amSan José Juan Santamaria Intl
13h 03m
1 stop
SEA12:56 pmSeattle/Tacoma Intl
$622
Alaska Airlines
Jun 1
SEA8:30 pmSeattle/Tacoma Intl
26h 03m
2 stops
SJO11:33 pmSan José Juan Santamaria Intl
Jun 8
SJO12:53 amSan José Juan Santamaria Intl
15h 35m
1 stop
SEA3:28 pmSeattle/Tacoma Intl
$627
Alaska Airlines
Nov 9
SEA5:55 pmSeattle/Tacoma Intl
27h 13m
1 stop
SJO11:08 pmSan José Juan Santamaria Intl
Nov 24
SJO1:45 amSan José Juan Santamaria Intl
20h 20m
1 stop
SEA8:05 pmSeattle/Tacoma Intl
$632

Southwest flights from Seattle to San José

Our best Southwest deals on Seattle to San José flight tickets
Southwest
Sep 15
SEA8:55 amSeattle/Tacoma Intl
8h 45m
1 stop
SJO6:40 pmSan José Juan Santamaria Intl
Sep 29
SJO9:00 amSan José Juan Santamaria Intl
15h 35m
2 stops
SEA11:35 pmSeattle/Tacoma Intl
$502
Southwest
Aug 12
SEA8:55 amSeattle/Tacoma Intl
8h 45m
1 stop
SJO6:40 pmSan José Juan Santamaria Intl
Aug 26
SJO9:00 amSan José Juan Santamaria Intl
15h 35m
2 stops
SEA11:35 pmSeattle/Tacoma Intl
$522
Southwest
Aug 18
SEA6:40 amSeattle/Tacoma Intl
11h 00m
2 stops
SJO6:40 pmSan José Juan Santamaria Intl
Sep 2
SJO9:00 amSan José Juan Santamaria Intl
15h 25m
2 stops
SEA11:25 pmSeattle/Tacoma Intl
$533

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 May 27, 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

Tue 9/15

11:05 pm-12:45 pm

2 stops12h 40m

San José Juan Santamaria Intl

Tue 9/29

9:00 am-11:35 pm

2 stops15h 35m

$502

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Wed 8/12

8:55 am-6:40 pm

1 stop8h 45m

San José Juan Santamaria Intl

Wed 8/26

9:00 am-11:35 pm

2 stops15h 35m

$522

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Wed 11/11

5:55 pm-11:45 am

3 stops15h 50m

San José Juan Santamaria Intl

Sun 11/15

5:00 am-4:57 pm

2 stops13h 57m

$524

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Fri 9/18

5:59 pm-11:45 am

3 stops16h 46m

San José Juan Santamaria Intl

Sat 10/3

12:40 pm-10:35 am

3 stops22h 55m

$529

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Tue 8/18

6:40 am-6:40 pm

2 stops11h 00m

San José Juan Santamaria Intl

Wed 9/2

9:00 am-11:25 pm

2 stops15h 25m

$533

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Wed 9/9

6:40 am-6:40 pm

2 stops11h 00m

San José Juan Santamaria Intl

Wed 9/16

9:00 am-11:35 pm

2 stops15h 35m

$543
Quickest round-trip

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Mon 10/26

8:00 pm-6:00 am

1 stop9h 00m

San José Juan Santamaria Intl

Thu 11/5

1:20 pm-1:15 am

1 stop13h 55m

$544

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Tue 8/18

6:40 am-6:40 pm

2 stops11h 00m

San José Juan Santamaria Intl

Wed 9/2

9:00 am-11:05 pm

2 stops15h 05m

$549

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Mon 8/3

5:04 pm-8:19 am

2 stops14h 15m

San José Juan Santamaria Intl

Wed 9/9

8:45 am-9:51 pm

2 stops14h 06m

$555

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Wed 8/12

6:10 pm-12:45 pm

2 stops17h 35m

San José Juan Santamaria Intl

Wed 8/26

9:00 am-11:35 pm

2 stops15h 35m

$559

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 $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 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 $630 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 $512 on momondo.

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

As of May 2026, prices for Seattle to San José flights are approximately 1% 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

11h 30m

Direct flights

None
The fastest flight from Seattle to San José takes 11h 30m
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 11h 30m.

  • 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
6.5
2,528 reviews
Search Avianca flights
DeltaPriceFrom $345Free CancellationRating
7.9
8,425 reviews
Search Delta flights
JetBluePriceFrom $362Free CancellationRating
7.1
2,982 reviews
Search JetBlue flights
Alaska AirlinesPriceFrom $386Free CancellationRating
7.9
12,422 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $386Free CancellationRating
7.1
11,639 reviews
Search American Airlines flights
United AirlinesPriceFrom $394Free CancellationRating
7.4
9,751 reviews
Search United Airlines flights
SouthwestPriceFrom $516Free CancellationRating
7.9
4,265 reviews
Search Southwest flights
AeromexicoPriceFrom $766Free CancellationRating
7.4
1,501 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
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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