How long is the flight from San José to Seattle?

A quick flight from San José to Seattle can take about 14h 24m. United Airlines provides one of the quickest options available for as low as £421. San José and Seattle are separated by a distance of 3405 mi.

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

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

When flying from San José to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

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

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

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

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

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

£233+ Cheap Flights from San José to Seattle

Cheap flight deals from San José to Seattle

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from San José to Seattle
Explore the most affordable flight options available from San José to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 October 2026.

Thu 15/1007:55 -

1 stop31h 58m

Sun 18/1007:00 -

1 stop23h 15m

Deal found 30/9£420

Fri 30/1011:35 -

2 stops14h 24m

Tue 3/1116:39 -

2 stops18h 43m

Deal found 5/10£421

Fri 6/1109:40 -

1 stop13h 07m

Mon 9/1117:23 -

1 stop13h 09m

Deal found 30/9£427

Thu 22/1008:45 -

1 stop13h 16m

Tue 3/1113:16 -

1 stop17h 16m

Deal found 1/10£427

Tue 13/1007:55 -

2 stops28h 40m

Fri 16/1007:11 -

1 stop23h 04m

Deal found 30/9£445

Sun 1/1106:40 -

1 stop11h 32m

Sat 7/1115:35 -

1 stop14h 57m

Deal found 1/10£452

Fri 9/1013:25 -

2 stops23h 10m

Thu 15/1019:25 -

1 stop10h 50m

Deal found 4/10£461

Mon 16/1109:40 -

1 stop10h 53m

Mon 23/1117:23 -

1 stop13h 09m

Deal found 2/10£469

Fri 9/1008:45 -

1 stop26h 17m

Fri 16/1007:11 -

1 stop23h 04m

Deal found 30/9£505

Find flight deals from San José to Seattle

Round-trip from	£420
One-way from	£233
Popular in	August
Cheapest in	February
Average price	£427

United Airlines
15/10-18/10
2 total stops
55h 13m total
San José to Seattle

Search Deals

Southwest
29/10-31/12
2 total stops
12h 30m total
San José to Seattle

Search Deals

Highest demand for flights based on searches. 6% potential increase in price (£23 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (£5 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San JoséSeattle

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

SJOSEA

San José Juan Santamaria Intl

Thu 29/10

13:30-01:00

2 stops12h 30m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£233

San JoséSeattle

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

SJOSEA

San José Juan Santamaria Intl

Wed 23/12

08:45-09:49

2 stops27h 04m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£245

San JoséSeattle

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

SJOSEA

San José Juan Santamaria Intl

Tue 27/10

13:25-16:12

2 stops27h 47m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£245

San JoséSeattle

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

SJOSEA

San José Juan Santamaria Intl

Thu 29/10

13:25-13:25

1 stop25h 00m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£245

San JoséSeattle

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

SJOSEA

San José Juan Santamaria Intl

Sun 1/11

08:45-12:20

2 stops29h 35m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£245

San JoséSeattle

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

SJOSEA

San José Juan Santamaria Intl

Sun 14/2

06:40-23:34

2 stops18h 54m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£245

San JoséSeattle

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

SJOSEA

San José Juan Santamaria Intl

Mon 19/10

08:45-01:15

1 stop17h 30m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£248

Fastest return journey

San JoséSeattle

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

SJOSEA

San José Juan Santamaria Intl

Fri 30/10

13:25-22:51

1 stop10h 26m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£248

San JoséSeattle

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

SJOSEA

San José Juan Santamaria Intl

Tue 16/2

08:45-11:34

2 stops28h 49m

Seattle/Tacoma Intl

Wed 31/12

00:00-02:00

Nonstop0h 00m

£250

San JoséSeattle

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

SJOSEA

San José Juan Santamaria Intl

Thu 15/10

07:55-14:53

1 stop31h 58m

Seattle/Tacoma Intl

Sun 18/10

07:00-07:15

1 stop23h 15m

£420

Flights are sorted by cheapest return flights first.

Deals found on 1/10

Showing 1-10 of 21 resultsSorted by cheapest first

Best time to book a flight from San José to Seattle

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

SJO-SEA

Estimated return 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 San José to Seattle

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

The best time to book flights from San José to Seattle is 76 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, February is the cheapest month in which you can book a flight from San José to Seattle (average of £412). Flying from San José to Seattle in August is currently the most expensive (average of £528). 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 for a return flight from San José to Seattle?

Airfare is typical for this route at the moment.

San José to Seattle flights typically cost between £412 and £506 in October.
The cheapest return price found within the last 5 days was £420 on United Airlines (15 Oct–18 Oct).

Related info for your journey

How long is the flight from San José to Seattle?
A quick flight from San José to Seattle can take about 14h 24m. United Airlines provides one of the quickest options available for as low as £421. San José and Seattle are separated by a distance of 3405 mi.
Can I find deals for flights from San José to Seattle that include hotel bookings?
Yes. In addition to deals on San José to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from San José to Seattle?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San José to Seattle.
Can I find deals for business class flights from San José to Seattle?
Yes. Cheapflights offers flight deals from San José to Seattle 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 San José to Seattle?
Currently, February is the cheapest month in which you can book a flight from San José to Seattle (average of £412). Flying from San José to Seattle in August is currently the most expensive (average of £528). 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.

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Deals for San José to Seattle flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Seattle from San José.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from San José to Seattle flexibly with Cheapflights today.

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Cheap flights from San José to Seattle from £233

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 29/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from San José to Seattle

Cheapest flights from San José to SeattleExplore the most affordable flight options available from San José to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 October 2026.

Explore the most affordable flight options available from San José to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 October 2026.

Best flights from San José to SeattleDiscover carefully curated flight deals from San José to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 October 2026.

Discover carefully curated flight deals from San José to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 October 2026.

Last-minute flights from San José to SeattleDiscover last-minute flight deals from San José to Seattle. Data last updated 5 October 2026 and is based on user searches.

Discover last-minute flight deals from San José to Seattle. Data last updated 5 October 2026 and is based on user searches.

One-way flights from San José to SeattleSearch for one-way flight options from San José to Seattle. Find affordable one-way fares based on user searches. Data last updated 5 October 2026.

Search for one-way flight options from San José to Seattle. Find affordable one-way fares based on user searches. Data last updated 5 October 2026.

Find flight deals from San José to Seattle

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

Best time to book a flight from San José to Seattle

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

Cheapflights Insights

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

The best time to book flights from San José to Seattle is 76 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

How much does it cost for a return flight from San José to Seattle?

Airfare is typical for this route at the moment.

San José to Seattle flights typically cost between £412 and £506 in October.The cheapest return price found within the last 5 days was £420 on United Airlines (15 Oct–18 Oct).

Related info for your journey

How long is the flight from San José to Seattle?

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

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

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

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

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San José and Seattle flights

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

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

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

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

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Cheapest flights from San José to Seattle
Explore the most affordable flight options available from San José to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 October 2026.

Best flights from San José to Seattle
Discover carefully curated flight deals from San José to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 October 2026.

Last-minute flights from San José to Seattle
Discover last-minute flight deals from San José to Seattle. Data last updated 5 October 2026 and is based on user searches.

One-way flights from San José to Seattle
Search for one-way flight options from San José to Seattle. Find affordable one-way fares based on user searches. Data last updated 5 October 2026.

San José to Seattle flights typically cost between £412 and £506 in October.
The cheapest return price found within the last 5 days was £420 on United Airlines (15 Oct–18 Oct).