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Cheap flights from Seattle to San Jose from £58

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 7/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJC
9 Jul — 16 Jul1
1 adult

Cheap flight deals from Seattle to San Jose

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to San Jose (SJC). 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 4 July 2025.

Round-trip from

£115

One-way from

£58

Popular in

November

Cheapest in

September

Average price

£180
Alaska Airlines
  • Alaska Airlines
  • 15/8-24/8
  • Nonstop
  • 4h 33m total
  • Seattle to San Jose
Delta
  • Delta
  • 7/8
  • Nonstop
  • 2h 28m total
  • Seattle to San Jose
Highest demand for flights based on searches. 8% potential increase in price (£12 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£3 potential savings vs. average return price).
Average for round-trip flights in July 2025

Find flight deals from Seattle to San Jose

Cheapest flights from Seattle to San Jose
Explore the most affordable flight options available from Seattle to San Jose. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 July 2025.

Wed 6/807:00SEA - SJC
Nonstop2h 08mAlaska Airlines
Fri 15/821:46SJC - SEA
Nonstop2h 13mAlaska Airlines
Deal found 3/7£115
Sat 9/808:20SEA - SJC
Nonstop2h 23mDelta
Tue 12/807:23SJC - SEA
Nonstop2h 22mDelta
Deal found 3/7£124
Thu 7/805:15SEA - SJC
2 stops7h 05mSouthwest
Sun 17/821:30SJC - SEA
Nonstop2h 10mSouthwest
Deal found 3/7£126
Tue 5/816:59SEA - SJC
1 stop5h 37mHawaiian Airlines
Thu 14/813:04SJC - SEA
Nonstop2h 08mHawaiian Airlines
Deal found 1/7£166

Cheapflights Fare Finder

Customise your flight search to find flights from Seattle to San Jose 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 4 July 2025.
Use the filters below to find and compare flights from Seattle to San Jose that are best for you.

Fly from

Seattle

Fly to

San Jose

Route

Depart

Return

Price

SeattleSan Jose

SEA - SJC

SEASJC

Seattle/Tacoma Intl

Fri 15/8

11:25-13:49

Nonstop2h 24m

San Jose

Sat 23/8

07:23-09:45

Nonstop2h 22m

£115

SeattleSan Jose

SEA - SJC

SEASJC

Seattle/Tacoma Intl

Tue 26/8

09:42-11:57

Nonstop2h 15m

San Jose

Tue 26/8

15:00-20:35

1 stop5h 35m

£118

SeattleSan Jose

SEA - SJC

SEASJC

Seattle/Tacoma Intl

Thu 14/8

05:15-12:20

2 stops7h 05m

San Jose

Wed 20/8

11:55-14:10

Nonstop2h 15m

£126

SeattleSan Jose

SEA - SJC

SEASJC

Seattle/Tacoma Intl

Fri 8/8

07:00-09:08

Nonstop2h 08m

San Jose

Sun 10/8

07:03-09:15

Nonstop2h 12m

£158

SeattleSan Jose

SEA - SJC

SEASJC

Seattle/Tacoma Intl

Thu 7/8

08:20-10:43

Nonstop2h 23m

£58

SeattleSan Jose

SEA - SJC

SEASJC

Seattle/Tacoma Intl

Wed 13/8

08:00-12:22

1 stop4h 22m

£64

SeattleSan Jose

SEA - SJC

SEASJC

Seattle/Tacoma Intl

Sat 4/10

16:52-19:00

Nonstop2h 08m

£67

SeattleSan Jose

SEA - SJC

SEASJC

Seattle/Tacoma Intl

Sat 4/10

05:00-16:15

1 stop11h 15m

£69

Flights are sorted by cheapest return flights first.

Deals found on 4/7

Best time to book a flight from Seattle to San Jose

Have a flexible travel schedule? Discover the best time to fly to San Jose from Seattle 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 Seattle to San Jose

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

Use this chart to determine the optimal time to book a return flight from Seattle to San Jose. Price data was last updated on 27 June 2025.

The best time to book flights from Seattle to San Jose is 49 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, November is the cheapest month in which you can book a flight from Seattle to San Jose (average of £505). Flying from Seattle to San Jose in July is currently the most expensive (average of £768). 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 SEA to SJC?

Find hourly flight availability from Seattle to San Jose. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 4 July 2025.

When flying from Seattle to San Jose, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Seattle to San Jose

Explore weekly flight availability from Seattle to San Jose. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 4 July 2025.

The most flights from SEA to SJC are scheduled on a Thursday (48 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (19 on average).

Reviews of airlines servicing San Jose

Get insights into the airlines that provide service to San Jose. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Jose. Reviews last updated 4 July 2025.
Check out reviews from past customers who have flown with Alaska Airlines, Southwest, andDelta from Seattle to San Jose to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

Boarding

8.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

Boarding

8.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
8.0
Very Good

Boarding

8.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

Boarding

8.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

Related info for your journey

Find useful and relevant information for your journey from Seattle to San Jose. 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 Seattle to San Jose flight route?

  • What are the cheapest airlines flying from Seattle to San Jose round-trip?

    Alaska Airlines, at £115, was found to be the cheapest airline from Seattle to San Jose.Alternate airlines flying return to your destination include Delta and Southwest. Alaska Airlines is currently priced 35% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Seattle to San Jose one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as £58. However, be on the lookout for offers from Southwest and Alaska Airlines, as they are both options that can get you from Seattle to San Jose for a low price.

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

    Consider Scandinavian Airlines (93%), SkyWest Airlines (91%) or Delta (90%) when booking your flight. These represent the most reliable airlines when flying from Seattle to San Jose.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Seattle to San Jose (average of £505). Flying from Seattle to San Jose in July is currently the most expensive (average of £768). 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

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Seattle to San Jose.

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

Certainly. Search results for flights to San Jose from Seattle shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to San Jose from Seattle today and book when prices fit your budget.

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