How long is the flight from Seattle to San José?

There are many flights that can get you from Seattle to San José in 11h 39m. Fly via United Airlines, Delta, or Alaska Airlines to get the fastest option. Airlines will cover a distance of 5480 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

In terms of precipitation, rainfall in San José ranges from 0.0 - 300.0 mm per month. September is typically the wettest month, when rainfall can reach 300.0 mm. February is typically the driest time to visit San José when rainfall is around 0.0 mm.

If weather is an important factor for your trip to San José, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 18.0 C).

What is the cheapest time of day to fly from SEA to SJO?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to San José as you normally would.

Can I find deals for flights from Seattle to San José that include hotel bookings?

Yes. In addition to deals on Seattle to San José flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Seattle to San José?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to San José.

Can I find deals for business class flights from Seattle to San José?

Yes. Cheapflights offers flight deals from Seattle to San José by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

C$ 397+ Cheap Flights from Seattle to San José

Cheap flight deals from Seattle to San José

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Seattle to San José
Explore the most affordable flight options available from Seattle to San José. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 November 2026.

Thu 3/127:30 p.m. -

1 stop11h 02m

Tue 8/128:45 a.m. -

1 stop12h 47m

Deal found 29/10C$ 854

Fri 27/113:35 p.m. -

2 stops12h 50m

Thu 10/129:40 a.m. -

1 stop10h 48m

Deal found 1/11C$ 867

Sat 14/113:35 p.m. -

2 stops12h 50m

Thu 19/112:25 p.m. -

1 stop10h 26m

Deal found 1/11C$ 879

Thu 3/125:35 p.m. -

1 stop12h 57m

Fri 18/1212:35 p.m. -

2 stops12h 41m

Deal found 1/11C$ 889

Tue 1/125:35 p.m. -

1 stop12h 57m

Tue 8/129:40 a.m. -

1 stop10h 48m

Deal found 1/11C$ 890

Wed 25/118:35 p.m. -

2 stops12h 50m

Wed 2/129:40 a.m. -

1 stop10h 48m

Deal found 31/10C$ 896

Fri 30/107:35 p.m. -

1 stop10h 57m

Thu 5/118:45 a.m. -

1 stop12h 32m

Deal found 30/10C$ 910

Sat 28/116:30 p.m. -

1 stop9h 55m

Sat 5/126:40 a.m. -

2 stops13h 48m

Deal found 30/10C$ 911

Thu 12/118:35 p.m. -

1 stop9h 57m

Sun 15/116:40 a.m. -

2 stops13h 53m

Deal found 1/11C$ 917

Find flight deals from Seattle to San José

Round-trip from	C$ 854
One-way from	C$ 397
Popular in	March
Cheapest in	January
Average price	C$ 921

United Airlines
13/1-17/1
2 total stops
23h 17m total
Seattle to San José

Search Deals

United Airlines
7/1-31/12
1 total stop
17h 14m total
Seattle to San José

Search Deals

Highest demand for flights based on searches. 6% potential increase in price (C$ 103 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (C$ 20 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in November 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleSan José

SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl

SEASJO

Seattle/Tacoma Intl

Mon 15/3

11:59 p.m.-7:39 p.m.

1 stop18h 40m

San José Juan Santamaria Intl

Wed 31/12

12:00 a.m.-10:00 p.m.

Nonstop0h 00m

C$ 397

SeattleSan José

SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl

SEASJO

Seattle/Tacoma Intl

Wed 2/12

1:16 p.m.-8:32 a.m.

1 stop17h 16m

San José Juan Santamaria Intl

Wed 31/12

12:00 a.m.-10:00 p.m.

Nonstop0h 00m

C$ 397

Quickest round-trip

SeattleSan José

SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl

SEASJO

Seattle/Tacoma Intl

Wed 6/1

5:44 p.m.-8:32 a.m.

1 stop12h 48m

San José Juan Santamaria Intl

Wed 31/12

12:00 a.m.-10:00 p.m.

Nonstop0h 00m

C$ 397

SeattleSan José

SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl

SEASJO

Seattle/Tacoma Intl

Wed 13/1

5:00 a.m.-8:39 p.m.

2 stops13h 39m

San José Juan Santamaria Intl

Wed 31/12

12:00 a.m.-10:00 p.m.

Nonstop0h 00m

C$ 442

SeattleSan José

SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl

SEASJO

Seattle/Tacoma Intl

Fri 8/1

1:18 p.m.-1:22 p.m.

2 stops22h 04m

San José Juan Santamaria Intl

Wed 31/12

12:00 a.m.-10:00 p.m.

Nonstop0h 00m

C$ 481

SeattleSan José

SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl

SEASJO

Seattle/Tacoma Intl

Tue 9/3

7:32 p.m.-8:39 p.m.

2 stops23h 07m

San José Juan Santamaria Intl

Wed 31/12

12:00 a.m.-10:00 p.m.

Nonstop0h 00m

C$ 488

SeattleSan José

SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl

SEASJO

Seattle/Tacoma Intl

Sat 5/12

3:28 p.m.-8:32 a.m.

1 stop15h 04m

San José Juan Santamaria Intl

Wed 31/12

12:00 a.m.-10:00 p.m.

Nonstop0h 00m

C$ 488

SeattleSan José

SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl

SEASJO

Seattle/Tacoma Intl

Fri 12/3

11:59 p.m.-8:39 p.m.

1 stop18h 40m

San José Juan Santamaria Intl

Wed 31/12

12:00 a.m.-10:00 p.m.

Nonstop0h 00m

C$ 488

SeattleSan José

SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl

SEASJO

Seattle/Tacoma Intl

Thu 3/12

1:16 p.m.-8:32 a.m.

1 stop17h 16m

San José Juan Santamaria Intl

Wed 31/12

12:00 a.m.-10:00 p.m.

Nonstop0h 00m

C$ 488

SeattleSan José

SEA Seattle/Tacoma Intl - SJO San José Juan Santamaria Intl

SEASJO

Seattle/Tacoma Intl

Sat 13/3

8:20 a.m.-11:57 p.m.

2 stops13h 37m

San José Juan Santamaria Intl

Wed 31/12

12:00 a.m.-10:00 p.m.

Nonstop0h 00m

C$ 509

Flights are sorted by cheapest round-trip flights first.

Deals found on 31/10

Showing 1-10 of 23 resultsSorted by cheapest first

Best time to book a flight from Seattle to San José

Have a flexible travel schedule? Discover the best time to fly to San José from Seattle with our price prediction graph.

SEA-SJO

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to San José

How far ahead should I book a flight from Seattle to San José?

To ensure you get the cheapest price possible for a flight from Seattle to San José, you should look to book at least 10 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Seattle to San José?

Currently, January is the cheapest month in which you can book a flight from Seattle to San José (average of C$ 837). Flying from Seattle to San José in March is currently the most expensive (average of C$ 1,135). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Seattle to San José?

Airfare is typical for this route at the moment.

Seattle to San José flights typically cost between C$ 780 and C$ 1,089 in January.
The cheapest round-trip price found within the last 5 days was C$ 854 on United Airlines (18 Jan-27 Jan).

Related info for your journey

How long is the flight from Seattle to San José?
There are many flights that can get you from Seattle to San José in 11h 39m. Fly via United Airlines, Delta, or Alaska Airlines to get the fastest option. Airlines will cover a distance of 5480 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
Can I find deals for flights from Seattle to San José that include hotel bookings?
Yes. In addition to deals on Seattle to San José flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Seattle to San José?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to San José.
Can I find deals for business class flights from Seattle to San José?
Yes. Cheapflights offers flight deals from Seattle to San José by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Seattle to San José?
Currently, January is the cheapest month in which you can book a flight from Seattle to San José (average of C$ 837). Flying from Seattle to San José in March is currently the most expensive (average of C$ 1,135). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Cheap flights from Seattle to San José from C$ 397

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Seattle to San José

Cheapest flights from Seattle to San JoséExplore the most affordable flight options available from Seattle to San José. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 November 2026.

Explore the most affordable flight options available from Seattle to San José. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 November 2026.

Best flights from Seattle to San JoséDiscover carefully curated flight deals from Seattle to San José that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 3 November 2026.

Discover carefully curated flight deals from Seattle to San José that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 3 November 2026.

Last-minute flights from Seattle to San JoséDiscover last-minute flight deals from Seattle to San José. Data last updated 3 November 2026 and is based on user searches.

Discover last-minute flight deals from Seattle to San José. Data last updated 3 November 2026 and is based on user searches.

One-way flights from Seattle to San JoséSearch for one-way flight options from Seattle to San José. Find affordable one-way fares based on user searches. Data last updated 3 November 2026.

Search for one-way flight options from Seattle to San José. Find affordable one-way fares based on user searches. Data last updated 3 November 2026.

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Cheapflights Fare Finder

Use the filters below to find and compare flights from Seattle to San José that are best for you.

Best time to book a flight from Seattle to San José

Have a flexible travel schedule? Discover the best time to fly to San José from Seattle with our price prediction graph.

Cheapflights Insights

How far ahead should I book a flight from Seattle to San José?

To ensure you get the cheapest price possible for a flight from Seattle to San José, you should look to book at least 10 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Seattle to San José?

How much does it cost to fly round-trip from Seattle to San José?

Airfare is typical for this route at the moment.

Seattle to San José flights typically cost between C$ 780 and C$ 1,089 in January.The cheapest round-trip price found within the last 5 days was C$ 854 on United Airlines (18 Jan-27 Jan).

Related info for your journey

How long is the flight from Seattle to San José?

Can I find deals for flights from Seattle to San José that include hotel bookings?

How can I find direct flights from Seattle to San José?

Can I find deals for business class flights from Seattle to San José?

What is the cheapest month to book a flight from Seattle to San José?

Travelling to a place near San José?

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Alternative routes for Seattle to San José

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Complete your trip

Complete your trip to San José by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to Costa Rica

Book a non-stop flight to one of these other cities located in Costa Rica.

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Seattle and San José flights

Browse other Seattle and San José flight options. Last updated on 3 November 2026.

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How does Cheapflights help users find flights from Seattle to San José?

Why should you use Cheapflights to find cheap flight tickets from Seattle to San José?

Can Cheapflights find flights from Seattle to San José with no change fees?

Can Cheapflights notify me if prices for flights from Seattle to San José become cheaper?

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Cheapest flights from Seattle to San José
Explore the most affordable flight options available from Seattle to San José. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 November 2026.

Best flights from Seattle to San José
Discover carefully curated flight deals from Seattle to San José that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 3 November 2026.

Last-minute flights from Seattle to San José
Discover last-minute flight deals from Seattle to San José. Data last updated 3 November 2026 and is based on user searches.

One-way flights from Seattle to San José
Search for one-way flight options from Seattle to San José. Find affordable one-way fares based on user searches. Data last updated 3 November 2026.

Seattle to San José flights typically cost between C$ 780 and C$ 1,089 in January.
The cheapest round-trip price found within the last 5 days was C$ 854 on United Airlines (18 Jan-27 Jan).