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Cheap flights from Seattle to San José from $202

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 5/19. 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.
Southwest Logo
8:55 am - 6:40 pm
SEA
-
SJO
8h 45m
1 stop
Southwest Logo
9:00 am - 11:05 pm
SJO
-
SEA
15h 05m
2 stops
$496Southwest
Wed, Sep 16 - Wed, Sep 23
Multiple Airlines Logo
1:50 pm - 8:30 am
SEA
-
SJO
17h 40m
2 stops
Multiple Airlines Logo
5:45 am - 6:56 pm
SJO
-
SEA
14h 11m
2 stops
$499Multiple Airlines
Sun, May 24 - Sat, May 30
Multiple Airlines Logo
1:30 pm - 8:30 am
SEA
-
SJO
18h 00m
2 stops
Multiple Airlines Logo
7:45 am - 9:57 pm
SJO
-
SEA
15h 12m
1 stop
$502Multiple Airlines
Wed, Sep 23 - Thu, Oct 1
Multiple Airlines Logo
9:15 pm - 11:15 pm
SEA
-
SJO
25h 00m
2 stops
Multiple Airlines Logo
5:45 am - 6:56 pm
SJO
-
SEA
14h 11m
2 stops
$503Multiple Airlines
Fri, May 22 - Tue, Jun 2
Multiple Airlines Logo
7:07 pm - 11:30 am
SEA
-
SJO
15h 23m
2 stops
Multiple Airlines Logo
3:10 pm - 8:52 am
SJO
-
SEA
18h 42m
2 stops
$505Multiple Airlines
Wed, Sep 23 - Mon, Sep 28
Multiple Airlines Logo
5:59 pm - 11:45 am
SEA
-
SJO
16h 46m
3 stops
Multiple Airlines Logo
3:10 pm - 8:52 am
SJO
-
SEA
18h 42m
2 stops
$507Multiple Airlines
Wed, Sep 16 - Wed, Sep 23
Multiple Airlines Logo
8:00 am - 11:40 pm
SEA
-
SJO
14h 40m
2 stops
Multiple Airlines Logo
5:45 am - 10:44 pm
SJO
-
SEA
17h 59m
2 stops
$509Multiple Airlines
Fri, May 29 - Sat, May 30
Multiple Airlines Logo
7:00 am - 8:30 am
SEA
-
SJO
24h 30m
2 stops
Multiple Airlines Logo
5:45 am - 9:42 pm
SJO
-
SEA
16h 57m
2 stops
$510Multiple Airlines
Sun, Aug 23 - Tue, Sep 1
Multiple Airlines Logo
8:00 am - 11:15 pm
SEA
-
SJO
14h 15m
2 stops
Multiple Airlines Logo
7:45 pm - 10:12 am
SJO
-
SEA
39h 27m
2 stops
$513Multiple Airlines
Sat, May 23 - Sun, May 31
Multiple Airlines Logo
5:59 pm - 11:45 am
SEA
-
SJO
16h 46m
3 stops
Multiple Airlines Logo
4:35 pm - 4:11 pm
SJO
-
SEA
24h 36m
2 stops
$514Multiple Airlines
Fri, Sep 18 - Fri, Sep 25

American Airlines flights from Seattle to San José

Our best American Airlines deals on Seattle to San José flight tickets
American Airlines
May 23
SEA5:10 amSeattle/Tacoma Intl
16h 32m
1 stop
SJO10:42 pmSan José Juan Santamaria Intl
Jun 2
SJO7:00 amSan José Juan Santamaria Intl
18h 08m
1 stop
SEA12:08 amSeattle/Tacoma Intl
$673
American Airlines
May 15
SEA6:00 amSeattle/Tacoma Intl
14h 36m
1 stop
SJO9:36 pmSan José Juan Santamaria Intl
May 24
SJO6:00 amSan José Juan Santamaria Intl
19h 08m
1 stop
SEA12:08 amSeattle/Tacoma Intl
$682
American Airlines
May 15
SEA6:00 amSeattle/Tacoma Intl
14h 36m
1 stop
SJO9:36 pmSan José Juan Santamaria Intl
May 17
SJO11:35 pmSan José Juan Santamaria Intl
12h 13m
1 stop
SEA10:48 amSeattle/Tacoma Intl
$683

Alaska Airlines flights from Seattle to San José

Our best Alaska Airlines deals on Seattle to San José flight tickets
Alaska Airlines
May 26
SEA9:02 amSeattle/Tacoma Intl
13h 31m
1 stop
SJO11:33 pmSan José Juan Santamaria Intl
Jun 2
SJO12:53 amSan José Juan Santamaria Intl
13h 10m
1 stop
SEA1:03 pmSeattle/Tacoma Intl
$592
Alaska Airlines
May 25
SEA7:00 amSeattle/Tacoma Intl
15h 33m
1 stop
SJO11:33 pmSan José Juan Santamaria Intl
May 27
SJO12:53 amSan José Juan Santamaria Intl
19h 01m
2 stops
SEA6:54 pmSeattle/Tacoma Intl
$597
Alaska Airlines
May 26
SEA7:05 amSeattle/Tacoma Intl
15h 28m
2 stops
SJO11:33 pmSan José Juan Santamaria Intl
May 31
SJO12:53 amSan José Juan Santamaria Intl
13h 21m
2 stops
SEA1:14 pmSeattle/Tacoma Intl
$643

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 12, 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
Quickest round-trip

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Wed 9/16

8:55 am-6:40 pm

1 stop8h 45m

San José Juan Santamaria Intl

Wed 9/23

9:00 am-11:05 pm

2 stops15h 05m

$496

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Sun 5/24

1:50 pm-8:30 am

2 stops17h 40m

San José Juan Santamaria Intl

Sat 5/30

5:45 am-6:56 pm

2 stops14h 11m

$499

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Wed 9/23

1:30 pm-8:30 am

2 stops18h 00m

San José Juan Santamaria Intl

Thu 10/1

7:45 am-9:57 pm

1 stop15h 12m

$502

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Fri 5/22

9:15 pm-11:15 pm

2 stops25h 00m

San José Juan Santamaria Intl

Tue 6/2

5:45 am-6:56 pm

2 stops14h 11m

$503

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Wed 9/23

7:07 pm-11:30 am

2 stops15h 23m

San José Juan Santamaria Intl

Mon 9/28

3:10 pm-8:52 am

2 stops18h 42m

$505

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Wed 9/16

5:59 pm-11:45 am

3 stops16h 46m

San José Juan Santamaria Intl

Wed 9/23

3:10 pm-8:52 am

2 stops18h 42m

$507

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Fri 5/29

8:00 am-11:40 pm

2 stops14h 40m

San José Juan Santamaria Intl

Sat 5/30

5:45 am-10:44 pm

2 stops17h 59m

$509

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Sun 8/23

7:00 am-8:30 am

2 stops24h 30m

San José Juan Santamaria Intl

Tue 9/1

5:45 am-9:42 pm

2 stops16h 57m

$510

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Sat 5/23

8:00 am-11:15 pm

2 stops14h 15m

San José Juan Santamaria Intl

Sun 5/31

7:45 pm-10:12 am

2 stops39h 27m

$513

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

Fri 9/25

4:35 pm-4:11 pm

2 stops24h 36m

$514

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 $629 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

12h 10m

Direct flights

None
The fastest flight from Seattle to San José takes 12h 10m
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 10m.

  • 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
2,523 reviews
Search Avianca flights
DeltaPriceFrom $345Free CancellationRating
7.9
8,451 reviews
Search Delta flights
JetBluePriceFrom $362Free CancellationRating
7.1
2,974 reviews
Search JetBlue flights
Alaska AirlinesPriceFrom $386Free CancellationRating
7.9
12,352 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $388Free CancellationRating
7.1
11,668 reviews
Search American Airlines flights
United AirlinesPriceFrom $395Free CancellationRating
7.4
9,705 reviews
Search United Airlines flights
SouthwestPriceFrom $516Free CancellationRating
7.9
4,297 reviews
Search Southwest flights
AeromexicoPriceFrom $766Free CancellationRating
7.4
1,516 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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