SJO - SEA

£229 Find Cheap Flights from San José to Seattle – Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
£420
Typical prices: £370-£510
United Airlines
Mon 15/10Wed 24/10
SJO - SEA • 1 stop
Cheapest one-way flight
£229
Typical prices: £214-£312
Alaska Airlines
Mon 5/11
SJO - SEA • 1 stop
Direct flights
Not available
There are currently no direct flights between San José and Seattle. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
17 weeks
in advance
Our data shows that travellers who book at least 17 weeks in advance save around 33% compared to booking last minute.
Insights
Insights
When to travel
February
Cheapest • 16% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Chicago O'Hare Intl (ORD)
Cheapest • Avg £330 (return)
Denver Intl (DEN)
Shortest trip • 9h 51m (one-way)
Insights
Insights
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We hope you enjoy your trip to Seattle!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from San José to Seattle (SJO-SEA)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from San José to Seattle

Thu, 15 Oct - Mon, 19 Oct
United Airlines Logo
13:25 - 11:35SJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
23h 10m2 stops Houston George Bush Intcntl Los Angeles
United Airlines Logo
16:35 - 12:21SEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
18h 46m2 stops Los Angeles Houston George Bush Intcntl
£420United Airlines
Sat, 31 Oct - Tue, 3 Nov
United Airlines Logo
08:40 - 23:31SJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
15h 51m1 stop San Francisco
United Airlines Logo
15:35 - 08:32SEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
14h 57m1 stop San Francisco
£427United Airlines
Sat, 31 Oct - Tue, 3 Nov
United Airlines Logo
06:30 - 18:46SJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
13h 16m2 stops Denver Intl San Francisco
United Airlines Logo
16:39 - 13:22SEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
18h 43m2 stops Los Angeles Houston George Bush Intcntl
£430United Airlines
Fri, 23 Oct - Wed, 28 Oct
Southwest Logo
13:30 - 01:00SJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
12h 30m2 stops Houston Hobby Las Vegas Harry Reid Intl
Southwest Logo
15:00 - 12:35SEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
20h 35m2 stops Phoenix Sky Harbor Intl Orlando
£436Southwest
Sun, 25 Oct - Tue, 27 Oct
United Airlines Logo
08:40 - 18:33SJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
10h 53m1 stop San Francisco
United Airlines Logo
15:35 - 07:32SEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
14h 57m1 stop San Francisco
£445United Airlines
Thu, 15 Oct - Wed, 21 Oct
United Airlines Logo
08:45 - 10:03SJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
26h 18m1 stop San Francisco
United Airlines Logo
12:16 - 19:37SEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
30h 21m2 stops Los Angeles Houston George Bush Intcntl
£451United Airlines
Sun, 1 Nov - Sat, 7 Nov
United Airlines Logo
09:40 - 18:33SJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
10h 53m1 stop San Francisco
United Airlines Logo
23:59 - 11:25SEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
9h 26m1 stop Houston George Bush Intcntl
£452United Airlines
Sun, 1 Nov - Sat, 7 Nov
United Airlines Logo
09:40 - 20:47SJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
13h 07m1 stop San Francisco
United Airlines Logo
15:35 - 11:25SEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
17h 50m2 stops San Francisco Houston George Bush Intcntl
£455United Airlines
Tue, 13 Oct - Wed, 21 Oct
United Airlines Logo
13:25 - 15:50SJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
27h 25m2 stops Houston George Bush Intcntl Los Angeles
United Airlines Logo
12:16 - 19:37SEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
30h 21m2 stops Los Angeles Houston George Bush Intcntl
£460United Airlines
Mon, 23 Nov - Mon, 7 Dec
United Airlines Logo
09:40 - 20:47SJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
13h 07m1 stop San Francisco
United Airlines Logo
23:59 - 13:22SEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
11h 23m1 stop Houston George Bush Intcntl
£469United Airlines
Booking Insights

Price, demand, and travel trends for San José to Seattle flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from San José to Seattle with more confidence.

How much is a return flight from San José to Seattle?

Return flights from San José to Seattle start at £420. Prices are typical for this route right now, with typical return fares ranging from £370 to £510. The lowest price found in the past 5 days was £420 on United Airlines.

What's the cheapest day of the week to fly from San José to Seattle?

Tuesday is the cheapest day of the week to fly from San José to Seattle and is 6% cheaper than the average day. Saturday is the most expensive day with flight prices 4% higher than average. Based on deals found by KAYAK users in the last 12 months.

What is the cheapest month to fly from San José to Seattle?

•February is the cheapest month to fly from San José to Seattle at £370 return.
•June (£527) and July (£498) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 42% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from San José to Seattle the cheapest?

Flights from San José to Seattle are cheapest 17 weeks before departure. Booking in this window typically costs about 33% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Key details for San José to Seattle flights

Low season

February

Cheapest flight

£229
Best time to beat the crowds (16% less expensive on average)
Most popular time to fly (19% more expensive on average)
Flights from San José to Seattle

When to book flights from San José to Seattle

Are your dates flexible? Find out the best times to travel from San José to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your San José to Seattle flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • How long is a flight from San José to Seattle?

    A direct flight from San José to Seattle takes 0h 00m, covering 3,405 miles.

  • Do I need a passport to fly from San José to Seattle?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a San José to Seattle flight?

    Return flights from San José to Seattle range from £370 to £510, with an average of £443 over the past 12 months. Anything below £370 counts as a good deal.

  • How expensive are last-minute San José to Seattle flights?

    Last-minute fares on this route (booked within 2 weeks of departure) run 11% above the route average of £443. Book 17 weeks before departure for the lowest fares.

  • Have flight prices from San José to Seattle changed much recently?

    Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about £420 to £943. That means the highest observed fare was about 2x higher than the lowest one.

  • How are flight prices from San José to Seattle looking right now?

    One-way fares from San José to Seattle are currently in line with typical prices for this route. Average one-way fares are about £251.

  • Which car hire options are available at Seattle/Tacoma Intl Airport (SEA)?

    Seattle/Tacoma Intl Airport (SEA) hosts 5 major car hire companies, with daily rates starting from around £3 for economy cars. Top options include:
    • Fox
    • Europcar
    • Thrifty
    • Budget
    • Dollar

  • Which airports can I use when flying from San José to Seattle?

    Flights from San José to Seattle usually depart from San José Juan Santamaria Intl (SJO) and arrive at Seattle/Tacoma Intl (SEA).

  • Which airports do connecting flights from San José to Seattle pass through?

    One-stop flights from San José to Seattle most commonly connect through:

    • Los Angeles (LAX) – 29% of one-stop connections
    • Dallas/Fort Worth (DFW) – 21% of one-stop connections
    • San Francisco (SFO) – 18% of one-stop connections
    • Houston George Bush Intcntl (IAH) – 18% of one-stop connections

    Los Angeles (LAX) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from San José to Seattle?

    Yes. Being flexible with your travel dates can save you up to 10% on the San José to Seattle route. Tuesday is the cheapest departure day at £418 return on average, while Saturday is the most expensive at £463, a difference of £45. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different stopover airport from San José to Seattle?

    Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time of 9h 51m, compared to 10h 22m via Houston Hobby (HOU) and 11h 12m via Houston George Bush Intcntl (IAH).

  • What is the time difference between San José and Seattle?

    Seattle is 1 hour behind San José (Pacific Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Seattle?

    Some of the most popular sights in Seattle are The Westin Seattle, Seattle Center, and Seattle Marriott Waterfront. These are among the most viewed places in Seattle on KAYAK.

Your guide to booking San José to Seattle flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure instead of Saturday. On this route, Tuesday flights average £418 – about £45 less than Saturday (10% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 17 weeks before you fly. On this route, that window historically saves about 33% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your San José to Seattle trip for February. Fares historically average £370 return in that month – typically £157 less than the most expensive month, which is June (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Seattle/Tacoma Intl Airport.
    - Seattle Airport Marriott
    - Coast Gateway Hotel
    - Fairfield by Marriott Inn & Suites Seattle Sea-Tac Airport

More options for your flight from San José to Seattle

Complete your trip to Seattle with a hotel stay or car hire

Car hire in Seattle
Hotels in Seattle
Holidays in Seattle