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Cheap flights from Portsmouth to San Jose from £798

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SJC
6 Jul — 13 Jul1
1 adult

Cheap 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 1 July 2025.

Round-trip from

£798

Popular in

August

Cheapest in

February

Average price

£738
KLM
  • KLM
  • 14/8-21/8
  • 4 total stops
  • 39h 12m total
  • Portsmouth to San Jose
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£95 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from Portsmouth to San Jose

Cheapest flights from Portsmouth to San Jose
Explore the most affordable flight options available from Portsmouth to San Jose. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 July 2025.

Thu 14/809:20SOU - SJC
2 stops20h 52mKLM
Thu 21/806:25SJC - SOU
2 stops18h 20mKLM
Deal found 30/6£798
Thu 14/809:40SOU - SJC
3 stops21h 18mMultiple Airlines
Thu 21/806:00SJC - SOU
3 stops25h 40mMultiple Airlines
Deal found 30/6£1,040

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 1 July 2025.
Use the filters below to find and compare flights from Portsmouth to San Jose that are best for you.

Fly from

Portsmouth

Fly to

San Jose

Route

Depart

Return

Price

SouthamptonSan Jose

SOU - SJC

SOUSJC

Southampton Eastleigh

Thu 14/8

09:20-22:12

2 stops20h 52m

San Jose

Thu 21/8

06:25-08:45

2 stops18h 20m

£798

SouthamptonSan Jose

SOU - SJC

SOUSJC

Southampton Eastleigh

Thu 14/8

09:40-22:58

3 stops21h 18m

San Jose

Thu 21/8

06:00-15:40

3 stops25h 40m

£1,040

Flights are sorted by cheapest return flights first.

Deals found on 30/6

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

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

Currently, November is the cheapest month in which you can book a flight from Portsmouth to San Jose (average of £505). Flying from Portsmouth 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 P0R to SJC?

Find hourly flight availability from Portsmouth 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 1 July 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portsmouth to San Jose as you normally would.

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 1 July 2025.
Read reviews from past customers who have flown with KLM from Portsmouth to San Jose. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,366 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Overall

7.8

Boarding

7.8

Food

7.2

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
KLM
7.8
Good
1,366 reviews
KLM
7.8
Good
1,366 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Overall

7.8

Boarding

7.8

Food

7.2

Crew

8.4

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

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 7 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.

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

    Currently, November is the cheapest month in which you can book a flight from Portsmouth to San Jose (average of £505). Flying from Portsmouth 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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Top 7 airlines flying from Portsmouth to San Jose

Discover the top 7 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 1 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest£309Average£400FlexibilityNo cancel feeOn-time77%
Search Air France flights
Virgin AtlanticCheapest£368Average£451FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
KLMCheapest£372Average£449FlexibilityNo cancel feeOn-time75%
Search KLM flights
British AirwaysCheapest£376Average£462FlexibilityNo cancel feeOn-time70%
Search British Airways flights
FinnairCheapest£394Average£476FlexibilityNo cancel feeOn-time76%
Search Finnair flights
LufthansaCheapest£430Average£518FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£444Average£556FlexibilityNo cancel feeOn-time69%
Search United Airlines 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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