Find flights
Deals
When to book
FAQs

Cheap flights from San Jose, California to Seattle from £44

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 31/1. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — SEA
25 Jan — 1 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from San Jose to Seattle

Enter your travel dates to find the best prices.

Cheapest flights from San Jose to Seattle
Explore the most affordable flight options available from San Jose to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 December 2025.

Fri 26/1218:20SJC - SEA
Nonstop2h 29mDelta
Tue 27/111:15SEA - SJC
Nonstop2h 19mDelta
Deal found 25/12£268
Mon 29/1209:15SJC - SEA
Nonstop2h 20mSouthwest
Thu 15/105:15SEA - SJC
1 stop9h 35mSouthwest
Deal found 24/12£279
Fri 26/1217:20SJC - SEA
1 stop8h 05mSouthwest
Tue 27/106:05SEA - SJC
2 stops8h 10mSouthwest
Deal found 25/12£286
Wed 31/1207:13SJC - SEA
Nonstop2h 32mDelta
Wed 7/108:35SEA - SJC
Nonstop2h 22mDelta
Deal found 24/12£333
Wed 31/1217:30SJC - SEA
Nonstop2h 15mSouthwest
Wed 7/109:55SEA - SJC
2 stops8h 10mSouthwest
Deal found 24/12£344
Wed 24/1218:30SJC - SEA
2 stops14h 45mAlaska Airlines
Thu 25/1211:32SEA - SJC
Nonstop2h 20mAlaska Airlines
Deal found 24/12£375

Find flight deals from San Jose to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from San Jose (SJC) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 26 December 2025.

Round-trip from

£87

One-way from

£44

Popular in

December

Cheapest in

January

Average price

£250
Alaska Airlines
  • Alaska Airlines
  • 28/2-4/3
  • Nonstop
  • 4h 36m total
  • San Jose to Seattle
Search Deals
Delta
  • Delta
  • 28/2
  • Nonstop
  • 2h 19m total
  • San Jose to Seattle
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£9 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from San Jose to Seattle 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, Cheapflights users made 858,174 searches. Data last updated 26 December 2025.
Use the filters below to find and compare flights from San Jose to Seattle that are best for you.

Fly from

San Jose

Fly to

Seattle

Route

Depart

Return

Price

San JoseSeattle

SJC - SEA

SJCSEA

San Jose

Tue 20/1

07:45-10:13

Nonstop2h 28m

Seattle/Tacoma Intl

Sat 24/1

17:50-20:05

Nonstop2h 15m

£87

San JoseSeattle

SJC - SEA

SJCSEA

San Jose

Fri 30/1

09:05-11:21

Nonstop2h 16m

Seattle/Tacoma Intl

Sun 1/2

07:30-09:48

Nonstop2h 18m

£87

San JoseSeattle

SJC - SEA

SJCSEA

San Jose

Sun 15/2

06:50-09:10

Nonstop2h 20m

Seattle/Tacoma Intl

Wed 18/2

10:10-12:30

Nonstop2h 20m

£87

San JoseSeattle

SJC - SEA

SJCSEA

San Jose

Mon 26/1

15:36-17:54

Nonstop2h 18m

Seattle/Tacoma Intl

Sat 31/1

12:30-14:42

Nonstop2h 12m

£87

San JoseSeattle

SJC - SEA

SJCSEA

San Jose

Sat 14/3

15:37-20:58

1 stop5h 21m

Seattle/Tacoma Intl

Mon 16/3

11:45-19:10

1 stop7h 25m

£87

San JoseSeattle

SJC - SEA

SJCSEA

San Jose

Wed 25/2

07:15-09:45

Nonstop2h 30m

Seattle/Tacoma Intl

Thu 26/2

15:25-17:38

Nonstop2h 13m

£87

San JoseSeattle

SJC - SEA

SJCSEA

San Jose

Thu 19/2

08:00-10:19

Nonstop2h 19m

Seattle/Tacoma Intl

Sun 22/2

07:05-09:22

Nonstop2h 17m

£87

San JoseSeattle

SJC - SEA

SJCSEA

San Jose

Tue 17/3

07:15-09:38

Nonstop2h 23m

Seattle/Tacoma Intl

Sun 29/3

08:36-10:58

Nonstop2h 22m

£87

San JoseSeattle

SJC - SEA

SJCSEA

San Jose

Wed 28/1

14:25-16:46

Nonstop2h 21m

Seattle/Tacoma Intl

Sun 1/2

08:35-10:57

Nonstop2h 22m

£87

San JoseSeattle

SJC - SEA

SJCSEA

San Jose

Thu 15/1

07:45-10:13

Nonstop2h 28m

Seattle/Tacoma Intl

Sun 18/1

08:35-10:57

Nonstop2h 22m

£87

Flights are sorted by cheapest return flights first.

Deals found on 25/12

Showing 1-10 of 22 results
1
2
3

Best time to book a flight from San Jose to Seattle

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

How far ahead should I book a flight from San Jose, California to Seattle?

Use this chart to determine the optimal time to book a return flight from San Jose to Seattle. Price data was last updated on 19 December 2025.

The price you pay for your flight from San Jose, California to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 47 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from San Jose, California to Seattle?

Currently, January is the cheapest month in which you can book a flight from San Jose, California to Seattle (average of £61). Flying from San Jose, California to Seattle in May is currently the most expensive (average of £101). 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.

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

Find hourly flight availability from San Jose to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 26 December 2025.

It’s typically best to fly out from San Jose, California to Seattle in the afternoon. Doing so could potentially save you 64% on the flight price compared to flying at midday, which is usually more expensive.

Related info for your journey

Find useful and relevant information for your journey from San Jose to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this San Jose, California to Seattle flight route?

    The San Jose to Seattle/Tacoma Intl flight path was viewed by 15 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from San Jose, California to Seattle?

    Airlines like Alaska Airlines and Delta fly from San Jose, California to Seattle in about 2h 16m. The time it takes to get you to your destination is usually consistent. Airlines will cover a distance of 697 mi. All flights are typically direct.

  • What are the most reliable airlines from San Jose, California to Seattle?

    Consider Horizon Air (100%), Aeromexico (99%) or Air France (95%) when booking your flight. These represent the most reliable airlines when flying from San Jose, California to Seattle.

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

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

  • How can I find direct flights from San Jose to Seattle?

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

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

    Yes. Cheapflights offers flight deals from San Jose 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 Jose, California to Seattle?

    Currently, January is the cheapest month in which you can book a flight from San Jose, California to Seattle (average of £61). Flying from San Jose, California to Seattle in May is currently the most expensive (average of £101). 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

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Jose to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
San Francisco to Seattle flights
San Francisco to Portland flights
Los Angeles to Portland flights
San Diego to Seattle flights
San Diego to Portland flights
Los Angeles to Seattle flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Seattle from San Jose today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from San Jose 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 Jose.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from San Jose to Seattle, users can toggle the no change fees filter when performing a flight search.

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

Yes! Start tracking prices for San Jose to Seattle flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.