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Cheap flights from San Jose to Seattle from £55

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 31/10. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — SEA
12 Oct — 19 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from San Jose to Seattle/Tacoma Intl are usually found in October or January, booked 87 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap 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 12 September 2025.

Round-trip from

£100

One-way from

£55

Popular in

August

Cheapest in

October

Average price

£168
Delta
  • Delta
  • 25/10-30/10
  • Nonstop
  • 4h 39m total
  • San Jose to Seattle
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Southwest
  • Southwest
  • 12/12
  • Nonstop
  • 2h 15m total
  • San Jose to Seattle
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£11 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£3 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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Find flight deals from San Jose to Seattle

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 12 September 2025.

Sat 25/1014:21SJC - SEA
Nonstop2h 21mDelta
Mon 3/1116:45SEA - SJC
Nonstop2h 10mDelta
Deal found 11/9£100
Sat 11/1019:35SJC - SEA
Nonstop2h 25mDelta
Sat 18/1013:37SEA - SJC
Nonstop2h 20mDelta
Deal found 11/9£101
Tue 14/1016:20SJC - SEA
1 stop6h 35mSouthwest
Sat 18/1015:50SEA - SJC
Nonstop2h 15mSouthwest
Deal found 10/9£102
Wed 8/1009:33SJC - SEA
1 stop5h 02mAlaska Airlines
Wed 8/1016:52SEA - SJC
Nonstop2h 14mAlaska Airlines
Deal found 10/9£103
Sat 25/1013:10SJC - SEA
1 stop8h 35mSouthwest
Sat 1/1110:05SEA - SJC
2 stops7h 30mSouthwest
Deal found 11/9£103
Mon 6/1014:21SJC - SEA
Nonstop2h 21mDelta
Sat 18/1016:35SEA - SJC
Nonstop2h 13mDelta
Deal found 10/9£104
Sat 11/1014:21SJC - SEA
Nonstop2h 21mDelta
Tue 14/1014:10SEA - SJC
1 stop5h 11mDelta
Deal found 9/9£106
Fri 17/1006:30SJC - SEA
Nonstop2h 20mSouthwest
Wed 22/1017:00SEA - SJC
1 stop5h 55mSouthwest
Deal found 10/9£106
Mon 27/1018:13SJC - SEA
Nonstop2h 22mAlaska Airlines
Tue 4/1105:20SEA - SJC
1 stop3h 35mAlaska Airlines
Deal found 12/9£107
Thu 9/1008:00SJC - SEA
Nonstop2h 24mAlaska Airlines
Wed 15/1015:05SEA - SJC
Nonstop2h 15mAlaska Airlines
Deal found 10/9£109
Sun 2/1107:55SJC - SEA
Nonstop2h 20mSouthwest
Thu 6/1107:10SEA - SJC
Nonstop2h 15mSouthwest
Deal found 11/9£109
Thu 9/1008:00SJC - SEA
Nonstop2h 24mAlaska Airlines
Sat 18/1007:00SEA - SJC
Nonstop2h 18mAlaska Airlines
Deal found 10/9£110

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 12 September 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

Sat 25/10

14:21-16:42

Nonstop2h 21m

Seattle/Tacoma Intl

Thu 30/10

08:35-10:51

Nonstop2h 16m

£100

San JoseSeattle

SJC - SEA

SJCSEA

San Jose

Sat 1/11

18:18-20:40

Nonstop2h 22m

Seattle/Tacoma Intl

Tue 4/11

13:35-15:54

Nonstop2h 19m

£100

San JoseSeattle

SJC - SEA

SJCSEA

San Jose

Sat 18/10

13:00-15:15

Nonstop2h 15m

Seattle/Tacoma Intl

Mon 20/10

12:50-15:00

Nonstop2h 10m

£100

San JoseSeattle

SJC - SEA

SJCSEA

San Jose

Tue 3/3

14:50-06:59

1 stop16h 09m

Seattle/Tacoma Intl

Wed 4/3

09:55-12:08

Nonstop2h 13m

£100

San JoseSeattle

SJC - SEA

SJCSEA

San Jose

Thu 16/10

07:15-09:45

Nonstop2h 30m

Seattle/Tacoma Intl

Sat 18/10

16:35-18:48

Nonstop2h 13m

£100

San JoseSeattle

SJC - SEA

SJCSEA

San Jose

Thu 16/10

07:15-09:45

Nonstop2h 30m

Seattle/Tacoma Intl

Wed 22/10

08:35-10:51

Nonstop2h 16m

£104

San JoseSeattle

SJC - SEA

SJCSEA

San Jose

Thu 27/11

07:05-09:46

Nonstop2h 41m

Seattle/Tacoma Intl

Tue 2/12

16:40-18:57

Nonstop2h 17m

£104

San JoseSeattle

SJC - SEA

SJCSEA

San Jose

Sat 6/12

09:00-11:20

Nonstop2h 20m

Seattle/Tacoma Intl

Mon 8/12

09:25-16:50

2 stops7h 25m

£111

San JoseSeattle

SJC - SEA

SJCSEA

San Jose

Tue 30/9

07:00-12:45

1 stop5h 45m

Seattle/Tacoma Intl

Tue 30/9

17:40-22:55

1 stop5h 15m

£113

San JoseSeattle

SJC - SEA

SJCSEA

San Jose

Wed 1/10

07:00-14:40

1 stop7h 40m

Seattle/Tacoma Intl

Wed 15/10

12:45-18:19

1 stop5h 34m

£113

Flights are sorted by cheapest return flights first.

Deals found on 10/9

Showing 1-10 of 23 results
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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 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 29 August 2025.

Booking 60 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Jose to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from San Jose to Seattle (average of £622). Flying from San Jose to Seattle in July is currently the most expensive (average of £946). 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 12 September 2025.

It’s typically best to fly out from San Jose to Seattle in the evening. Doing so could potentially save you 48% on the flight price compared to flying in the morning, 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 to Seattle flight route?

    Within the past month, 14 users have taken a look at flights from San Jose to Seattle/Tacoma Intl.

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

    Departing from San Jose to Seattle will take you 2h 15m. The distance between San Jose and Seattle is about 697 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

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

    Currently, January is the cheapest month in which you can book a flight from San Jose to Seattle (average of £622). Flying from San Jose to Seattle in July is currently the most expensive (average of £946). 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
Bothell
SeaTac

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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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