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Cheap flights from San Jose, California to Seattle from £78

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 22/7. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — SEA
28 Jun — 5 Jul1
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 29 May 2026.

Tue 30/619:20
SJC
-
SEA
Nonstop2h 10m
Southwest
Tue 7/706:30
SEA
-
SJC
2 stops6h 45m
Southwest
Deal found 28/5£143
Wed 29/717:00
SJC
-
SEA
1 stop7h 35m
Southwest
Tue 4/812:00
SEA
-
SJC
1 stop8h 05m
Southwest
Deal found 28/5£147
Tue 30/616:30
SJC
-
SEA
2 stops8h 10m
Southwest
Wed 1/712:45
SEA
-
SJC
1 stop4h 55m
Southwest
Deal found 28/5£148
Tue 4/806:17
SJC
-
SEA
Nonstop2h 17m
Alaska Airlines
Thu 20/814:42
SEA
-
SJC
Nonstop2h 14m
Alaska Airlines
Deal found 28/5£148
Wed 5/816:00
SJC
-
SEA
1 stop5h 00m
Southwest
Wed 26/813:45
SEA
-
SJC
2 stops7h 40m
Southwest
Deal found 28/5£149
Tue 23/618:20
SJC
-
SEA
1 stop6h 20m
Southwest
Tue 30/606:30
SEA
-
SJC
2 stops6h 45m
Southwest
Deal found 26/5£151
Sat 15/816:45
SJC
-
SEA
Nonstop2h 10m
Southwest
Sat 22/816:35
SEA
-
SJC
Nonstop2h 20m
Southwest
Deal found 29/5£155
Thu 3/906:00
SJC
-
SEA
Nonstop2h 20m
Southwest
Tue 8/916:10
SEA
-
SJC
1 stop5h 15m
Southwest
Deal found 27/5£156
Sat 5/914:25
SJC
-
SEA
1 stop5h 10m
Southwest
Tue 8/912:00
SEA
-
SJC
1 stop8h 05m
Southwest
Deal found 28/5£157
Wed 5/806:35
SJC
-
SEA
Nonstop2h 10m
Southwest
Sat 8/805:00
SEA
-
SJC
1 stop6h 55m
Southwest
Deal found 28/5£158
Tue 4/812:00
SJC
-
SEA
2 stops8h 15m
Southwest
Thu 20/811:50
SEA
-
SJC
Nonstop2h 30m
Southwest
Deal found 24/5£159

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 29 May 2026.

Round-trip from

£143

One-way from

£78

Popular in

May

Cheapest in

January

Average price

£240
Southwest
  • Southwest
  • 12/8-19/8
  • 2 total stops
  • 10h 30m total
  • San Jose to Seattle
Search Deals
Southwest
  • Southwest
  • 7/7
  • 2 total stops
  • 8h 10m 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. 2% potential price decrease (£3 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
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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 29 May 2026.
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 - SEA

SJCSEA

San Jose

Tue 7/7

16:30-00:45

2 stops8h 15m

Seattle/Tacoma Intl

Wed 15/7

07:30-09:45

Nonstop2h 15m

£143
Fastest return journey

San JoseSeattle

SJC - SEA

SJCSEA

San Jose

Tue 4/8

10:19-12:30

Nonstop2h 11m

Seattle/Tacoma Intl

Thu 20/8

14:42-16:56

Nonstop2h 14m

£148

San JoseSeattle

SJC - SEA

SJCSEA

San Jose

Tue 7/7

18:45-21:00

Nonstop2h 15m

Seattle/Tacoma Intl

Tue 14/7

20:06-22:21

Nonstop2h 15m

£162

San JoseSeattle

SJC - SEA

SJCSEA

San Jose

Sun 13/9

16:47-19:02

Nonstop2h 15m

Seattle/Tacoma Intl

Tue 15/9

20:43-22:57

Nonstop2h 14m

£165

San JoseSeattle

SJC - SEA

SJCSEA

San Jose

Thu 17/9

19:00-00:40

1 stop5h 40m

Seattle/Tacoma Intl

Tue 22/9

05:55-13:05

2 stops7h 10m

£167

San JoseSeattle

SJC - SEA

SJCSEA

San Jose

Wed 29/7

20:59-23:23

Nonstop2h 24m

Seattle/Tacoma Intl

Mon 3/8

20:30-22:50

Nonstop2h 20m

£184

San JoseSeattle

SJC - SEA

SJCSEA

San Jose

Tue 14/7

16:00-00:45

2 stops8h 45m

Seattle/Tacoma Intl

Tue 21/7

06:15-14:25

2 stops8h 10m

£184

San JoseSeattle

SJC - SEA

SJCSEA

San Jose

Thu 23/7

21:38-23:47

Nonstop2h 09m

Seattle/Tacoma Intl

Mon 27/7

21:43-23:59

Nonstop2h 16m

£199

San JoseSeattle

SJC - SEA

SJCSEA

San Jose

Wed 8/7

09:09-20:35

1 stop11h 26m

Seattle/Tacoma Intl

Mon 13/7

20:06-22:21

Nonstop2h 15m

£205

San JoseSeattle

SJC - SEA

SJCSEA

San Jose

Fri 10/7

14:59-22:05

1 stop7h 06m

Seattle/Tacoma Intl

Sun 12/7

17:59-23:39

1 stop5h 40m

£214

Flights are sorted by cheapest return flights first.

Deals found on 26/5

Showing 1-10 of 23 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
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?

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 74 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 £142). Flying from San Jose, California to Seattle in May is currently the most expensive (average of £240). 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 29 May 2026.

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?

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 16 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 and Alaska Airlines fly from San Jose, California to Seattle in about 2h 11m. The time it takes to get you to your destination can typically vary by up to 6h 04m. Airlines will cover a distance of 697 mi. This flight may include one or multiple stops.

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

    Consider Horizon Air (100%), Air France (97%) or WestJet (96%) 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 £142). Flying from San Jose, California to Seattle in May is currently the most expensive (average of £240). 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
Federal Way
SeaTac

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Alternative routes for San Jose to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
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Fly with Cheapflights

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How does Cheapflights help users find flights from 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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