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Cheap flights from Portsmouth to San Jose, California from £1,048

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 16/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SJC
3 Sep — 10 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portsmouth to San Jose

Enter your travel dates to find the best prices.

One-way flights from Portsmouth to San Jose
Search for one-way flight options from Portsmouth to San Jose. Find affordable one-way fares based on user searches. Data last updated 4 August 2026.

Sun 16/817:30
SOU
-
SJC
2 stops32h 59m
KLM
Deal found 2/8£1,048
Sun 16/809:20
SOU
-
SJC
2 stops19h 37m
Aer Lingus
Deal found 2/8£1,228
Sun 16/820:50
SOU
-
SJC
3 stops29h 03m
Multiple Airlines
Deal found 2/8£1,444
Sun 16/814:45
SOU
-
SJC
3 stops35h 15m
British Airways
Deal found 2/8£1,457

Find flight deals from Portsmouth to San Jose

Keep the following information in mind while searching for Portsmouth to San Jose flight deals. Data was last updated 4 August 2026.

Popular in

December

Cheapest in

March

Average price

£546
Highest demand for flights based on searches. 1% potential increase in price (£5 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Portsmouth 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 August 2026.
Use the filters below to find and compare flights from Portsmouth to San Jose that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest one-way

SouthamptonSan Jose

SOU - SJC

SOUSJC

Southampton Eastleigh

Sun 16/8

17:30-18:29

2 stops32h 59m

£1,048
Fastest single journey

SouthamptonSan Jose

SOU - SJC

SOUSJC

Southampton Eastleigh

Sun 16/8

09:20-20:57

2 stops19h 37m

£1,228

Flights are sorted by cheapest return flights first.

Deals found on 2/8

Sorted by cheapest first

Best time to book a flight from Portsmouth to San Jose

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

No data available for this route at this time. Please check back soon.

Related info for your journey

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

  • What airport do you fly into for flights to San Jose from Portsmouth?

    Most people fly into San Jose (SJC) if they book a flight to San Jose from Portsmouth. On average, San Jose has 0 inbound flights from Portsmouth per day from 2 airlines. San Jose is conveniently located just 2.9 mi from San Jose’s city center.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portsmouth 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.

See more FAQs

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Alternative routes for Portsmouth to San Jose

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Top 2 airlines flying from Portsmouth to San Jose

Discover the top 2 airlines that operate flights from Portsmouth to San Jose. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 4 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£414Average£541FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£422Average£588FlexibilityNo cancel feeOn-time70%
Search British Airways 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 Portsmouth to San Jose?

Deals for Portsmouth to San Jose flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Cheapflights helps you find that perfect flight to San Jose from Portsmouth by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Certainly. Search results for flights to San Jose from Portsmouth 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 Portsmouth to San Jose become cheaper?

Yes, Cheapflights offers price alerts on Portsmouth to San Jose flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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