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Cheap flights from Seattle to San José from $178

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 4/20. 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

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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
8:07 pm - 11:30 am
SEA
-
SJO
14h 23m
2 stops
Multiple Airlines Logo
3:10 pm - 8:57 am
SJO
-
SEA
18h 47m
2 stops
$442Multiple Airlines
Sun, Apr 26 - Wed, May 20
Multiple Airlines Logo
9:00 am - 11:15 pm
SEA
-
SJO
13h 15m
2 stops
Multiple Airlines Logo
7:45 am - 9:47 pm
SJO
-
SEA
15h 02m
1 stop
$444Multiple Airlines
Thu, Apr 30 - Tue, May 5
Multiple Airlines Logo
7:15 pm - 11:45 am
SEA
-
SJO
15h 30m
3 stops
Multiple Airlines Logo
12:40 pm - 8:57 am
SJO
-
SEA
21h 17m
3 stops
$445Multiple Airlines
Sun, Apr 26 - Wed, May 20
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
9:58 am - 11:15 pm
SEA
-
SJO
12h 17m
2 stops
Multiple Airlines Logo
5:45 am - 8:05 pm
SJO
-
SEA
15h 20m
2 stops
$447Multiple Airlines
Sat, Aug 15 - Sat, Aug 22
Multiple Airlines Logo
2:53 pm - 11:15 pm
SEA
-
SJO
31h 22m
2 stops
Multiple Airlines Logo
7:45 am - 9:47 pm
SJO
-
SEA
15h 02m
1 stop
$452Multiple Airlines
Mon, Apr 20 - Thu, Apr 23
Alaska Airlines Logo
10:50 pm - 11:45 pm
SEA
-
SJO
23h 55m
2 stops
Alaska Airlines Logo
12:55 am - 8:50 am
SJO
-
SEA
32h 55m
2 stops
$453Alaska Airlines
Fri, May 1 - Wed, May 6
Multiple Airlines Logo
8:08 pm - 11:30 am
SEA
-
SJO
14h 22m
2 stops
Multiple Airlines Logo
9:40 am - 9:29 am
SJO
-
SEA
24h 49m
2 stops
$457Multiple Airlines
Mon, Apr 20 - Thu, Apr 23
Multiple Airlines Logo
7:15 am - 11:40 pm
SEA
-
SJO
15h 25m
2 stops
Multiple Airlines Logo
5:05 am - 7:14 pm
SJO
-
SEA
15h 09m
2 stops
$458Multiple Airlines
Fri, Aug 7 - Fri, Aug 14
Multiple Airlines Logo
6:25 am - 11:40 pm
SEA
-
SJO
16h 15m
2 stops
Multiple Airlines Logo
12:40 pm - 10:42 am
SJO
-
SEA
23h 02m
3 stops
$459Multiple Airlines
Mon, Apr 20 - Thu, Apr 23

Alaska Airlines flights from Seattle to San José

Our best Alaska Airlines deals on Seattle to San José flight tickets
Alaska Airlines
May 1
SEA10:50 pmSeattle/Tacoma Intl
23h 55m
2 stops
SJO11:45 pmSan José Juan Santamaria Intl
May 6
SJO12:55 amSan José Juan Santamaria Intl
32h 55m
2 stops
SEA8:50 amSeattle/Tacoma Intl
$453
Alaska Airlines
May 1
SEA8:45 pmSeattle/Tacoma Intl
26h 00m
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
$491
Alaska Airlines
May 1
SEA10:50 pmSeattle/Tacoma Intl
23h 55m
2 stops
SJO11:45 pmSan José Juan Santamaria Intl
May 18
SJO12:53 amSan José Juan Santamaria Intl
31h 18m
2 stops
SEA7:11 amSeattle/Tacoma Intl
$504

American Airlines flights from Seattle to San José

Our best American Airlines deals on Seattle to San José flight tickets
American Airlines
Mar 15
SEA12:13 amSeattle/Tacoma Intl
17h 59m
1 stop
SJO7:12 pmSan José Juan Santamaria Intl
Apr 1
SJO2:20 pmSan José Juan Santamaria Intl
11h 35m
1 stop
SEA12:55 amSeattle/Tacoma Intl
$552
American Airlines
Mar 16
SEA10:08 pmSeattle/Tacoma Intl
12h 18m
2 stops
SJO11:26 amSan José Juan Santamaria Intl
Apr 1
SJO2:20 pmSan José Juan Santamaria Intl
11h 35m
1 stop
SEA12:55 amSeattle/Tacoma Intl
$557
American Airlines
Mar 17
SEA7:21 amSeattle/Tacoma Intl
10h 51m
1 stop
SJO7:12 pmSan José Juan Santamaria Intl
Apr 3
SJO2:20 pmSan José Juan Santamaria Intl
11h 35m
1 stop
SEA12:55 amSeattle/Tacoma Intl
$572

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 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

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Sun 4/26

8:07 pm-11:30 am

2 stops14h 23m

San José Juan Santamaria Intl

Wed 5/20

3:10 pm-8:57 am

2 stops18h 47m

$442

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Thu 4/30

9:00 am-11:15 pm

2 stops13h 15m

San José Juan Santamaria Intl

Tue 5/5

7:45 am-9:47 pm

1 stop15h 02m

$444

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Sun 4/26

7:15 pm-11:45 am

3 stops15h 30m

San José Juan Santamaria Intl

Wed 5/20

12:40 pm-8:57 am

3 stops21h 17m

$445
Quickest round-trip

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

Sat 8/15

9:58 am-11:15 pm

2 stops12h 17m

San José Juan Santamaria Intl

Sat 8/22

5:45 am-8:05 pm

2 stops15h 20m

$447

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Mon 4/20

2:53 pm-11:15 pm

2 stops31h 22m

San José Juan Santamaria Intl

Thu 4/23

7:45 am-9:47 pm

1 stop15h 02m

$452

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Fri 5/1

10:50 pm-11:45 pm

2 stops23h 55m

San José Juan Santamaria Intl

Wed 5/6

12:55 am-8:50 am

2 stops32h 55m

$453

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Mon 4/20

8:08 pm-11:30 am

2 stops14h 22m

San José Juan Santamaria Intl

Thu 4/23

9:40 am-9:29 am

2 stops24h 49m

$457

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Fri 8/7

7:15 am-11:40 pm

2 stops15h 25m

San José Juan Santamaria Intl

Fri 8/14

5:05 am-7:14 pm

2 stops15h 09m

$458

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Mon 4/20

6:25 am-11:40 pm

2 stops16h 15m

San José Juan Santamaria Intl

Thu 4/23

12:40 pm-10:42 am

3 stops23h 02m

$459

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 $492.

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 $608 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.

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

9h 22m

Direct flights

None
The fastest flight from Seattle to San José takes 9h 22m
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 9h 22m.

  • 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
2,498 reviews
Search Avianca flights
DeltaPriceFrom $345Free CancellationRating
7.9
8,285 reviews
Search Delta flights
JetBluePriceFrom $362Free CancellationRating
7.2
2,902 reviews
Search JetBlue flights
Alaska AirlinesPriceFrom $386Free CancellationRating
8.0
12,027 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $387Free CancellationRating
7.1
11,427 reviews
Search American Airlines flights
United AirlinesPriceFrom $396Free CancellationRating
7.4
9,417 reviews
Search United Airlines flights
SouthwestPriceFrom $572Free CancellationRating
8.0
4,317 reviews
Search Southwest flights
AeromexicoPriceFrom $766Free CancellationRating
7.4
1,569 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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