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Cheap flights from Seattle to San José from $162

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 4/21. 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
9:15 pm - 6:50 pm
SEA
-
SJO
20h 35m
3 stops
Multiple Airlines Logo
7:45 pm - 8:05 pm
SJO
-
SEA
25h 20m
2 stops
$442Multiple Airlines
Thu, Aug 13 - Thu, Aug 20
Multiple Airlines Logo
9:08 am - 11:15 pm
SEA
-
SJO
13h 07m
2 stops
Multiple Airlines Logo
3:10 pm - 9:29 am
SJO
-
SEA
19h 19m
2 stops
$444Multiple Airlines
Tue, Apr 14 - Tue, Apr 28
Multiple Airlines Logo
7:06 pm - 11:45 am
SEA
-
SJO
15h 39m
3 stops
Multiple Airlines Logo
12:40 pm - 8:57 am
SJO
-
SEA
21h 17m
3 stops
$445Multiple Airlines
Sat, May 9 - Sun, May 24
Multiple Airlines Logo
7:15 pm - 8:45 am
SEA
-
SJO
12h 30m
2 stops
Multiple Airlines Logo
7:45 am - 9:49 pm
SJO
-
SEA
15h 04m
1 stop
$446Multiple Airlines
Sun, Apr 26 - Wed, May 20
Multiple Airlines Logo
10:43 pm - 11:15 am
SEA
-
SJO
11h 32m
1 stop
Multiple Airlines Logo
12:20 pm - 9:49 am
SJO
-
SEA
22h 29m
2 stops
$449Multiple Airlines
Sun, Apr 19 - Tue, Apr 21
Multiple Airlines Logo
11:07 am - 11:15 pm
SEA
-
SJO
35h 08m
2 stops
Multiple Airlines Logo
7:45 am - 9:27 am
SJO
-
SEA
50h 42m
2 stops
$451Multiple Airlines
Fri, Apr 17 - Mon, Apr 27
Multiple Airlines Logo
8:08 pm - 11:15 pm
SEA
-
SJO
26h 07m
2 stops
Multiple Airlines Logo
7:45 am - 10:03 pm
SJO
-
SEA
15h 18m
1 stop
$452Multiple Airlines
Wed, Apr 15 - Mon, Apr 20
Multiple Airlines Logo
5:59 pm - 11:15 pm
SEA
-
SJO
28h 16m
2 stops
Multiple Airlines Logo
2:20 am - 9:27 am
SJO
-
SEA
32h 07m
2 stops
$453Multiple Airlines
Mon, Apr 13 - Fri, Apr 24
Multiple Airlines Logo
7:55 am - 11:15 am
SEA
-
SJO
26h 20m
1 stop
Multiple Airlines Logo
12:20 pm - 4:10 pm
SJO
-
SEA
28h 50m
2 stops
$454Multiple Airlines
Tue, Apr 14 - Wed, Apr 29
Alaska Airlines Logo
9:51 pm - 11:45 pm
SEA
-
SJO
24h 54m
2 stops
Alaska Airlines Logo
12:55 am - 11:41 pm
SJO
-
SEA
23h 46m
2 stops
$458Alaska Airlines
Sun, May 3 - Wed, May 6

Alaska Airlines flights from Seattle to San José

Our best Alaska Airlines deals on Seattle to San José flight tickets
Alaska Airlines
May 3
SEA9:51 pmSeattle/Tacoma Intl
24h 54m
2 stops
SJO11:45 pmSan José Juan Santamaria Intl
May 6
SJO12:55 amSan José Juan Santamaria Intl
23h 46m
2 stops
SEA11:41 pmSeattle/Tacoma Intl
$458
Alaska Airlines
Apr 20
SEA8:42 pmSeattle/Tacoma Intl
26h 11m
2 stops
SJO11:53 pmSan José Juan Santamaria Intl
Apr 29
SJO12:55 amSan José Juan Santamaria Intl
21h 54m
2 stops
SEA9:49 pmSeattle/Tacoma Intl
$460
Alaska Airlines
Apr 25
SEA10:50 pmSeattle/Tacoma Intl
23h 55m
2 stops
SJO11:45 pmSan José Juan Santamaria Intl
Apr 29
SJO12:55 amSan José Juan Santamaria Intl
19h 58m
1 stop
SEA7:53 pmSeattle/Tacoma Intl
$472

American Airlines flights from Seattle to San José

Our best American Airlines deals on Seattle to San José flight tickets
American Airlines
Mar 10
SEA10:08 pmSeattle/Tacoma Intl
12h 38m
1 stop
SJO11:46 amSan José Juan Santamaria Intl
Mar 19
SJO12:26 pmSan José Juan Santamaria Intl
12h 14m
1 stop
SEA11:40 pmSeattle/Tacoma Intl
$532
American Airlines
Mar 11
SEA10:16 pmSeattle/Tacoma Intl
10h 09m
1 stop
SJO9:25 amSan José Juan Santamaria Intl
Mar 17
SJO7:00 amSan José Juan Santamaria Intl
17h 40m
1 stop
SEA11:40 pmSeattle/Tacoma Intl
$536
American Airlines
Mar 3
SEA10:08 pmSeattle/Tacoma Intl
13h 42m
1 stop
SJO1:50 pmSan José Juan Santamaria Intl
Mar 10
SJO7:00 amSan José Juan Santamaria Intl
17h 40m
1 stop
SEA11:40 pmSeattle/Tacoma Intl
$537

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 March 1, 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 8/13

9:15 pm-6:50 pm

3 stops20h 35m

San José Juan Santamaria Intl

Thu 8/20

7:45 pm-8:05 pm

2 stops25h 20m

$442

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Tue 4/14

9:08 am-11:15 pm

2 stops13h 07m

San José Juan Santamaria Intl

Tue 4/28

3:10 pm-9:29 am

2 stops19h 19m

$444

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Sat 5/9

7:06 pm-11:45 am

3 stops15h 39m

San José Juan Santamaria Intl

Sun 5/24

12:40 pm-8:57 am

3 stops21h 17m

$445

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Sun 4/26

7:15 pm-8:45 am

2 stops12h 30m

San José Juan Santamaria Intl

Wed 5/20

7:45 am-9:49 pm

1 stop15h 04m

$446

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Sun 4/19

10:43 pm-11:15 am

1 stop11h 32m

San José Juan Santamaria Intl

Tue 4/21

12:20 pm-9:49 am

2 stops22h 29m

$449

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Fri 4/17

11:07 am-11:15 pm

2 stops35h 08m

San José Juan Santamaria Intl

Mon 4/27

7:45 am-9:27 am

2 stops50h 42m

$451

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Wed 4/15

8:08 pm-11:15 pm

2 stops26h 07m

San José Juan Santamaria Intl

Mon 4/20

7:45 am-10:03 pm

1 stop15h 18m

$452

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Mon 4/13

5:59 pm-11:15 pm

2 stops28h 16m

San José Juan Santamaria Intl

Fri 4/24

2:20 am-9:27 am

2 stops32h 07m

$453

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Tue 4/14

7:55 am-11:15 am

1 stop26h 20m

San José Juan Santamaria Intl

Wed 4/29

12:20 pm-4:10 pm

2 stops28h 50m

$454

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Sun 5/3

9:51 pm-11:45 pm

2 stops24h 54m

San José Juan Santamaria Intl

Wed 5/6

12:55 am-11:41 pm

2 stops23h 46m

$458

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 $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 $500.

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 $612 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 $523 on momondo.

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

You could potentially save up to 14% 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 March 2026, prices for Seattle to San José flights are approximately 30% 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 26m

Direct flights

None
The fastest flight from Seattle to San José takes 11h 26m
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 11h 26m.

  • 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
2,494 reviews
Search Avianca flights
JetBluePriceFrom $341Free CancellationRating
7.2
2,895 reviews
Search JetBlue flights
DeltaPriceFrom $345Free CancellationRating
7.9
8,244 reviews
Search Delta flights
Alaska AirlinesPriceFrom $386Free CancellationRating
8.0
11,972 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $390Free CancellationRating
7.1
11,370 reviews
Search American Airlines flights
United AirlinesPriceFrom $397Free CancellationRating
7.4
9,370 reviews
Search United Airlines flights
SouthwestPriceFrom $572Free CancellationRating
8.0
4,303 reviews
Search Southwest flights
AeromexicoPriceFrom $809Free CancellationRating
7.4
1,573 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
San Gerardo de Dota
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

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