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Cheap flights from Seattle to San José from $229

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 9/28. 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.
Southwest Logo
7:25 pm - 12:45 pm-
16h 20m
Southwest Logo
9:00 am - 12:35 am-
16h 35m
$506Southwest
Mon, Sep 28 - Thu, Oct 1
Southwest Logo
5:10 pm - 12:35 pm-
18h 25m
Southwest Logo
2:10 pm - 10:05 am-
21h 55m
$506Southwest
Sun, Oct 25 - Sun, Nov 1
Multiple Airlines Logo
2:19 pm - 8:45 am-
17h 26m
Multiple Airlines Logo
5:45 am - 6:48 pm-
14h 03m
$519Multiple Airlines
Thu, Oct 8 - Sat, Oct 17
Multiple Airlines Logo
7:08 pm - 11:45 am-
15h 37m
Multiple Airlines Logo
5:45 am - 6:48 pm-
14h 03m
$521Multiple Airlines
Thu, Oct 8 - Sat, Oct 17
United Airlines Logo
7:03 am - 8:39 pm-
11h 36m
United Airlines Logo
8:45 am - 7:12 pm-
12h 27m
$568United Airlines
Sat, Dec 5 - Fri, Dec 11
American Airlines Logo
6:00 am - 11:43 pm-
15h 43m
American Airlines Logo
6:38 am - 7:18 pm-
14h 40m
$578American Airlines
Mon, Jan 25 - Mon, Feb 8
American Airlines Logo
3:41 pm - 1:46 pm-
20h 05m
American Airlines Logo
2:46 pm - 9:37 am-
20h 51m
$578American Airlines
Tue, Nov 3 - Tue, Nov 10
United Airlines Logo
5:23 pm - 8:32 am-
13h 09m
United Airlines Logo
12:35 pm - 10:51 pm-
12h 16m
$578United Airlines
Wed, Nov 4 - Thu, Nov 12
Delta Logo
5:55 pm - 7:00 am-
11h 05m
Delta Logo
8:25 am - 8:31 pm-
14h 06m
$578Delta
Fri, Jan 22 - Sat, Feb 6
Delta Logo
2:00 pm - 12:45 pm-
20h 45m
Delta Logo
8:25 am - 8:31 pm-
14h 06m
$629Delta
Sat, Jan 16 - Sat, Jan 30

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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
Sep 11
SEA5:30 amSeattle/Tacoma Intl
13h 37m
2 stops
SJO8:07 pmSan José Juan Santamaria Intl
Sep 18
SJO6:00 amSan José Juan Santamaria Intl
16h 05m
2 stops
SEA9:05 pmSeattle/Tacoma Intl
$583
American Airlines
Oct 21
SEA5:38 pmSeattle/Tacoma Intl
17h 22m
2 stops
SJO12:00 pmSan José Juan Santamaria Intl
Oct 25
SJO1:00 pmSan José Juan Santamaria Intl
12h 10m
1 stop
SEA12:10 amSeattle/Tacoma Intl
$588
American Airlines
Aug 6
SEA8:21 pmSeattle/Tacoma Intl
14h 42m
1 stop
SJO12:03 pmSan José Juan Santamaria Intl
Aug 10
SJO2:56 pmSan José Juan Santamaria Intl
22h 02m
1 stop
SEA11:58 amSeattle/Tacoma Intl
$713

Southwest flights from Seattle to San José

Our best Southwest deals on Seattle to San José flight tickets
Southwest
Sep 28
SEA7:25 pmSeattle/Tacoma Intl
16h 20m
2 stops
SJO12:45 pmSan José Juan Santamaria Intl
Oct 1
SJO9:00 amSan José Juan Santamaria Intl
16h 35m
2 stops
SEA12:35 amSeattle/Tacoma Intl
$506
Southwest
Sep 1
SEA8:55 amSeattle/Tacoma Intl
8h 45m
1 stop
SJO6:40 pmSan José Juan Santamaria Intl
Sep 18
SJO9:00 amSan José Juan Santamaria Intl
15h 55m
2 stops
SEA11:55 pmSeattle/Tacoma Intl
$579
Southwest
Sep 1
SEA6:40 amSeattle/Tacoma Intl
11h 00m
2 stops
SJO6:40 pmSan José Juan Santamaria Intl
Sep 14
SJO9:00 amSan José Juan Santamaria Intl
12h 50m
2 stops
SEA8:50 pmSeattle/Tacoma Intl
$585

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 August 4, 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

Mon 9/28

7:25 pm-12:45 pm

2 stops16h 20m

San José Juan Santamaria Intl

Thu 10/1

9:00 am-12:35 am

2 stops16h 35m

$506

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Sun 10/25

5:10 pm-12:35 pm

2 stops18h 25m

San José Juan Santamaria Intl

Sun 11/1

2:10 pm-10:05 am

2 stops21h 55m

$506

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Thu 10/8

2:19 pm-8:45 am

2 stops17h 26m

San José Juan Santamaria Intl

Sat 10/17

5:45 am-6:48 pm

2 stops14h 03m

$519

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Thu 10/8

7:08 pm-11:45 am

3 stops15h 37m

San José Juan Santamaria Intl

Sat 10/17

5:45 am-6:48 pm

2 stops14h 03m

$521
Quickest round-trip

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Sat 12/5

7:03 am-8:39 pm

1 stop11h 36m

San José Juan Santamaria Intl

Fri 12/11

8:45 am-7:12 pm

1 stop12h 27m

$568

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Mon 1/25

6:00 am-11:43 pm

1 stop15h 43m

San José Juan Santamaria Intl

Mon 2/8

6:38 am-7:18 pm

1 stop14h 40m

$578

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Tue 11/3

3:41 pm-1:46 pm

1 stop20h 05m

San José Juan Santamaria Intl

Tue 11/10

2:46 pm-9:37 am

1 stop20h 51m

$578

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Wed 11/4

5:23 pm-8:32 am

1 stop13h 09m

San José Juan Santamaria Intl

Thu 11/12

12:35 pm-10:51 pm

1 stop12h 16m

$578

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Fri 1/22

5:55 pm-7:00 am

1 stop11h 05m

San José Juan Santamaria Intl

Sat 2/6

8:25 am-8:31 pm

1 stop14h 06m

$578

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Sat 1/16

2:00 pm-12:45 pm

1 stop20h 45m

San José Juan Santamaria Intl

Sat 1/30

8:25 am-8:31 pm

1 stop14h 06m

$629

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 $578 to $774.
The lowest price recently found on this route was $506.

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 $503. 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 $513.

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 $656 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 $613 on momondo.

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

You could potentially save up to 1% 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 August 2026, prices for Seattle to San José flights are approximately 15% 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

11h 23m

Direct flights

None
The fastest flight from Seattle to San José takes 11h 23m
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 23m.

  • 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
8,482 reviews
Search Delta flights
JetBluePriceFrom $362Free CancellationRating
7.2
3,025 reviews
Search JetBlue flights
Alaska AirlinesPriceFrom $387Free CancellationRating
7.9
12,760 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $389Free CancellationRating
7.1
11,845 reviews
Search American Airlines flights
United AirlinesPriceFrom $400Free CancellationRating
7.4
10,059 reviews
Search United Airlines flights
SouthwestPriceFrom $516Free CancellationRating
8.0
4,221 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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