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Cheap flights from Seattle to San José from $157

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 10/1. 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

Southwest Logo
5:55 pm - 1:45 pmSEA-SJO
17h 50m2 stops
Southwest Logo
9:00 am - 10:55 pmSJO-SEA
15h 55m2 stops
$323Southwest
Find Deal
Fri, Nov 14 - Wed, Nov 19
American Airlines Logo
8:49 pm - 1:38 pmSEA-SJO
15h 49m1 stop
American Airlines Logo
1:00 pm - 11:41 pmSJO-SEA
11h 41m1 stop
$336American Airlines
Find Deal
Mon, Oct 6 - Wed, Oct 15
United Airlines Logo
7:37 pm - 7:15 amSEA-SJO
10h 38m1 stop
United Airlines Logo
8:37 am - 6:45 pmSJO-SEA
11h 08m1 stop
$346United Airlines
Find Deal
Wed, Oct 1 - Wed, Oct 15
Multiple Airlines Logo
8:05 am - 11:51 pmSEA-SJO
14h 46m1 stop
Multiple Airlines Logo
2:20 am - 12:13 pmSJO-SEA
35h 53m2 stops
$347Multiple Airlines
Find Deal
Tue, Oct 28 - Mon, Nov 10
United Airlines Logo
7:37 pm - 7:15 amSEA-SJO
10h 38m1 stop
United Airlines Logo
7:55 am - 11:15 pmSJO-SEA
16h 20m2 stops
$350United Airlines
Find Deal
Wed, Oct 1 - Wed, Oct 15
Alaska Airlines Logo
11:23 am - 11:51 pmSEA-SJO
11h 28m1 stop
Alaska Airlines Logo
1:55 am - 1:02 pmSJO-SEA
13h 07m1 stop
$358Alaska Airlines
Find Deal
Wed, Oct 29 - Mon, Nov 10
Delta Logo
3:40 pm - 1:06 pmSEA-SJO
19h 26m1 stop
Delta Logo
2:31 pm - 10:15 amSJO-SEA
21h 44m1 stop
$361Delta
Find Deal
Mon, Nov 10 - Tue, Nov 18
Alaska Airlines Logo
8:00 am - 11:51 pmSEA-SJO
14h 51m2 stops
Alaska Airlines Logo
1:55 am - 2:46 pmSJO-SEA
14h 51m2 stops
$362Alaska Airlines
Find Deal
Tue, Oct 28 - Mon, Nov 10
Multiple Airlines Logo
10:20 am - 11:51 pmSEA-SJO
12h 31m1 stop
Multiple Airlines Logo
2:20 am - 12:13 pmSJO-SEA
35h 53m2 stops
$364Multiple Airlines
Find Deal
Thu, Oct 30 - Mon, Nov 10
Delta Logo
3:45 pm - 11:58 amSEA-SJO
19h 13m1 stop
Delta Logo
2:31 pm - 10:15 amSJO-SEA
21h 44m1 stop
$411Delta
Find Deal
Tue, Oct 28 - Wed, Nov 12

Southwest flights from Seattle to San José, San José Province

Our best Southwest deals on Seattle to San José, San José Province flight tickets
Southwest
Nov 14
SEA5:55 pmSeattle/Tacoma Intl
17h 50m
2 stops
SJO1:45 pmSan José Juan Santamaria Intl
Nov 19
SJO9:00 amSan José Juan Santamaria Intl
15h 55m
2 stops
SEA10:55 pmSeattle/Tacoma Intl
$323
Find similar
Southwest
Nov 26
SEA7:45 pmSeattle/Tacoma Intl
15h 30m
2 stops
SJO1:15 pmSan José Juan Santamaria Intl
Dec 3
SJO9:00 amSan José Juan Santamaria Intl
15h 55m
2 stops
SEA10:55 pmSeattle/Tacoma Intl
$440
Find similar

American Airlines flights from Seattle to San José, San José Province

Our best American Airlines deals on Seattle to San José, San José Province flight tickets
American Airlines
Oct 6
SEA8:49 pmSeattle/Tacoma Intl
15h 49m
1 stop
SJO1:38 pmSan José Juan Santamaria Intl
Oct 15
SJO1:00 pmSan José Juan Santamaria Intl
11h 41m
1 stop
SEA11:41 pmSeattle/Tacoma Intl
$336
Find similar
American Airlines
Oct 6
SEA10:54 pmSeattle/Tacoma Intl
13h 44m
2 stops
SJO1:38 pmSan José Juan Santamaria Intl
Oct 15
SJO1:00 pmSan José Juan Santamaria Intl
11h 41m
1 stop
SEA11:41 pmSeattle/Tacoma Intl
$340
Find similar
American Airlines
Oct 22
SEA8:49 pmSeattle/Tacoma Intl
15h 49m
1 stop
SJO1:38 pmSan José Juan Santamaria Intl
Oct 30
SJO1:05 pmSan José Juan Santamaria Intl
11h 30m
1 stop
SEA11:35 pmSeattle/Tacoma Intl
$356
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to San José, San José Province 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 September 17, 2025.
Use the filters below to find and compare flights from Seattle to San José, San José Province that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Fri 11/14

5:55 pm-1:45 pm

2 stops17h 50m

San José Juan Santamaria Intl

Wed 11/19

9:00 am-10:55 pm

2 stops15h 55m

$323

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Mon 10/6

8:49 pm-1:38 pm

1 stop15h 49m

San José Juan Santamaria Intl

Wed 10/15

1:00 pm-11:41 pm

1 stop11h 41m

$336

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Wed 10/1

7:37 pm-7:15 am

1 stop10h 38m

San José Juan Santamaria Intl

Wed 10/15

8:37 am-6:45 pm

1 stop11h 08m

$346

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Tue 10/28

8:05 am-11:51 pm

1 stop14h 46m

San José Juan Santamaria Intl

Mon 11/10

2:20 am-12:13 pm

2 stops35h 53m

$347

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Wed 10/1

7:37 pm-7:15 am

1 stop10h 38m

San José Juan Santamaria Intl

Wed 10/15

7:55 am-11:15 pm

2 stops16h 20m

$350

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Wed 10/29

11:23 am-11:51 pm

1 stop11h 28m

San José Juan Santamaria Intl

Mon 11/10

1:55 am-1:02 pm

1 stop13h 07m

$358

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Mon 11/10

3:40 pm-1:06 pm

1 stop19h 26m

San José Juan Santamaria Intl

Tue 11/18

2:31 pm-10:15 am

1 stop21h 44m

$361

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Tue 10/28

8:00 am-11:51 pm

2 stops14h 51m

San José Juan Santamaria Intl

Mon 11/10

1:55 am-2:46 pm

2 stops14h 51m

$362

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Thu 10/30

10:20 am-11:51 pm

1 stop12h 31m

San José Juan Santamaria Intl

Mon 11/10

2:20 am-12:13 pm

2 stops35h 53m

$364

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Tue 10/28

3:45 pm-11:58 am

1 stop19h 13m

San José Juan Santamaria Intl

Wed 11/12

2:31 pm-10:15 am

1 stop21h 44m

$411

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Seattle to San José, San José Province

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, San José Province?

The month of September is, on average, the cheapest month to fly to San José, San José Province from Seattle, with most prices found around $514. If you’re not able to fly to San José, San José Province in September, then October is your next best option. Flight prices from Seattle to San José, San José Province during October average around $531.

What is the cheapest day to depart on your flight to San José, San José Province?

The cheapest day to depart from Seattle to San José, San José Province is on a Tuesday when prices can be found for as low as $576. The most expensive day to fly to San José, San José Province is Friday, with ticket prices averaging around $782.

What is the cheapest time of day to depart on your flight to San José, San José Province?

At noon is the cheapest time of day to fly from Seattle to San José, San José Province when you can find flight prices for as low as $658. Flying to San José, San José Province at noon is an ideal time because this is during off-peak travel hours. In the morning is when there is more demand to fly to San José, San José Province, so prices are often more expensive at around $693 per ticket.

How far in advance should I book a flight to San José, San José Province?

You are more likely to see cheaper flights to San José, San José Province from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to San José, San José Province for around $643 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San José, San José Province from Seattle for as low as $577 on momondo.

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

You could potentially save up to 18% on your flight if you consider stops on a Seattle to San José, San José Province flight.

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

As of September 2025, prices for Seattle to San José, San José Province flights are approximately 17% cheaper when compared to flights at the same time last year.

When to book flights from Seattle to San José, San José Province

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to San José, San José Province according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to San José, San José Province (SEA to SJO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to San José, San José Province

Direct flights

None
There are no direct flights from Seattle to San José, San José Province. There are no popular flight routes from Seattle to San José, San José Province.
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  • 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 9h 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, San José Province?

Best airlines flying from Seattle to San José, San José Province

Compare and see reviews for airlines that fly from Seattle to San José, San José Province with momondo
Airline
Rating
Free Cancellation
Price
AviancaPriceFrom $152Free CancellationRating
6.7
2,436 reviews
Search Avianca flights
Spirit AirlinesPriceFrom $308Free CancellationRating
6.3
8,023 reviews
Search Spirit Airlines flights
Copa AirlinesPriceFrom $423Free CancellationRating
7.6
1,533 reviews
Search Copa Airlines flights
Alaska AirlinesPriceFrom $431Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $448Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $486Free CancellationRating
7.9
7,961 reviews
Search Delta flights
United AirlinesPriceFrom $489Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights
SouthwestPriceFrom $543Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
AeromexicoPriceFrom $709Free CancellationRating
7.4
1,696 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
Alajuela
Monteverde
Heredia
Dominical
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.

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