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Cheap flights from San Jose, California to Seattle from £58

SJC — SEA
1 Oct — 8 Oct1
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

Thu 1/1022:47 -
1 stop10h 55m
Tue 6/1017:46 -
Nonstop2h 14m
Deal found 1/9£120
Wed 14/1018:00 -
1 stop5h 00m
Sat 17/1017:15 -
Nonstop2h 10m
Deal found 31/8£120
Wed 23/916:40 -
1 stop6h 50m
Sat 26/916:35 -
Nonstop2h 25m
Deal found 28/8£123
Thu 1/1006:05 -
Nonstop2h 15m
Tue 6/1008:45 -
2 stops7h 50m
Deal found 1/9£127
Wed 23/911:32 -
Nonstop2h 23m
Wed 30/911:33 -
Nonstop2h 28m
Deal found 31/8£131
Tue 13/1018:00 -
1 stop5h 00m
Tue 20/1008:45 -
2 stops7h 40m
Deal found 29/8£131
Tue 27/1011:12 -
1 stop9h 14m
Sat 31/1010:58 -
Nonstop2h 20m
Deal found 27/8£133
Mon 21/913:05 -
2 stops7h 50m
Thu 24/906:15 -
1 stop11h 30m
Deal found 30/8£139
Sat 19/907:29 -
1 stop14h 11m
Wed 23/913:37 -
Nonstop2h 14m
Deal found 29/8£140
Mon 2/1110:39 -
Nonstop2h 17m
Mon 2/1116:38 -
Nonstop2h 09m
Deal found 27/8£142

Find flight deals from San Jose to Seattle

Round-trip from

£120

One-way from

£58

Popular in

June

Cheapest in

January

Average price

£219
Alaska Airlines
  • Alaska Airlines
  • 1/10-6/10
  • 1 total stop
  • 13h 09m total
  • San Jose to Seattle
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Delta
  • Delta
  • 14/10
  • Nonstop
  • 2h 22m total
  • San Jose to Seattle
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£18 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£3 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
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Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San JoseSeattle

SJC San Jose - SEA Seattle/Tacoma Intl

SJCSEA

San Jose

Tue 13/10

18:00-23:00

1 stop5h 00m

Seattle/Tacoma Intl

Tue 20/10

19:25-21:40

Nonstop2h 15m

£120

San JoseSeattle

SJC San Jose - SEA Seattle/Tacoma Intl

SJCSEA

San Jose

Thu 1/10

06:05-08:20

Nonstop2h 15m

Seattle/Tacoma Intl

Tue 6/10

08:45-16:35

2 stops7h 50m

£127

San JoseSeattle

SJC San Jose - SEA Seattle/Tacoma Intl

SJCSEA

San Jose

Sat 26/9

16:50-23:00

1 stop6h 10m

Seattle/Tacoma Intl

Tue 29/9

06:25-12:50

2 stops6h 25m

£134

San JoseSeattle

SJC San Jose - SEA Seattle/Tacoma Intl

SJCSEA

San Jose

Fri 30/10

15:51-09:28

1 stop17h 37m

Seattle/Tacoma Intl

Sat 31/10

17:46-20:00

Nonstop2h 14m

£148

San JoseSeattle

SJC San Jose - SEA Seattle/Tacoma Intl

SJCSEA

San Jose

Wed 11/11

11:30-13:55

Nonstop2h 25m

Seattle/Tacoma Intl

Sun 15/11

14:50-17:09

Nonstop2h 19m

£168
Fastest return journey

San JoseSeattle

SJC San Jose - SEA Seattle/Tacoma Intl

SJCSEA

San Jose

Thu 3/12

06:20-08:40

Nonstop2h 20m

Seattle/Tacoma Intl

Sun 6/12

20:45-22:55

Nonstop2h 10m

£168
Cheapest one-way

San JoseSeattle

SJC San Jose - SEA Seattle/Tacoma Intl

SJCSEA

San Jose

Sat 26/9

17:45-20:14

Nonstop2h 29m

£58
Fastest single journey

San JoseSeattle

SJC San Jose - SEA Seattle/Tacoma Intl

SJCSEA

San Jose

Tue 20/10

06:00-08:15

Nonstop2h 15m

£58

San JoseSeattle

SJC San Jose - SEA Seattle/Tacoma Intl

SJCSEA

San Jose

Sat 3/10

11:32-13:57

Nonstop2h 25m

£58

San JoseSeattle

SJC San Jose - SEA Seattle/Tacoma Intl

SJCSEA

San Jose

Mon 11/1

07:50-10:05

Nonstop2h 15m

£58

Flights are sorted by cheapest return flights first.

Deals found on 30/8

Showing 1-10 of 17 resultsSorted by cheapest first
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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

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?

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 46 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 £141). Flying from San Jose, California to Seattle in June is currently the most expensive (average of £243). 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?

When flying from San Jose, California 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.

How much does it cost for a return flight from San Jose, California to Seattle?

Airfare is below average for this route at the moment.

San Jose, California to Seattle flights typically cost between £157 and £289 in October.
The cheapest return price found within the last 5 days was £120 on Multiple Airlines (1 Oct–6 Oct).

Related info for your journey

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

    The San Jose to Seattle/Tacoma Intl flight path was viewed by 7 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 Southwest fly from San Jose, California to Seattle in about 5h. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 697 mi.

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

    Consider Aeromexico (98%), Scandinavian Airlines (96%) or Korean Air (92%) 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 £141). Flying from San Jose, California to Seattle in June is currently the most expensive (average of £243). 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
Federal Way
SeaTac

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for San Jose to Seattle

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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.

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