How long is the flight from Portsmouth to San Jose, California?

A quick flight from Portsmouth to San Jose, California can take about 21h 32m. KLM provides one of the quickest options available for as low as £573. The distance between Portsmouth and San Jose, California is about 5350 mi.

In terms of precipitation, rainfall in San Jose, California ranges from 0.0 - 79.0 inches per month. January is typically the wettest month, when rainfall can reach 79.0 mm. July is typically the driest time to visit San Jose, California when rainfall is around 0.0 mm.

If weather is an important factor for your trip to San Jose, California, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 10.0 C).

What is the cheapest time of day to fly from P0R to SJC?

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, California as you normally would.

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.

£573+ Cheap Flights from Portsmouth to San Jose, California

Cheap flight deals from Portsmouth to San Jose

Enter your travel dates to find the best prices.

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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 21 September 2026.

Fri 13/1108:40 -

2 stops21h 32m

Sun 15/1107:00 -

2 stops26h 05m

Deal found 16/9£573

Thu 17/1212:25 -

2 stops29h 58m

Mon 21/1217:15 -

2 stops18h 15m

Deal found 16/9£808

Find flight deals from Portsmouth to San Jose

Popular in	December
Cheapest in	January
Average price	£523

High demand for flights, 2% potential price rise

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Cheapest flight prices on average. 1% potential price decrease (£6 potential savings vs. average return price).

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Average for round-trip flights in September 2026

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

Fly from

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Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

SouthamptonSan Jose

SOU Southampton Eastleigh - SJC San Jose

SOUSJC

Southampton Eastleigh

Fri 13/11

08:40-22:12

2 stops21h 32m

San Jose

Sun 15/11

07:00-17:05

2 stops26h 05m

£573

SouthamptonSan Jose

SOU Southampton Eastleigh - SJC San Jose

SOUSJC

Southampton Eastleigh

Thu 17/12

12:25-10:23

2 stops29h 58m

San Jose

Mon 21/12

17:15-19:30

2 stops18h 15m

£808

Flights are sorted by cheapest return flights first.

Deals found on 16/9

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.

SOU-SJC

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.

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Everything you need to know about your flight from Portsmouth to San Jose

P0R-SJC

SOU-SJC

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

Related info for your journey

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.
How long is the flight from Portsmouth to San Jose, California?
A quick flight from Portsmouth to San Jose, California can take about 21h 32m. KLM provides one of the quickest options available for as low as £573. The distance between Portsmouth and San Jose, California is about 5350 mi.
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.

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Top 2 airlines flying from Portsmouth to San Jose

Airline	Cheapest	Average	Flexibility	On-time
Virgin Atlantic	Cheapest£423	Average£550	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
British Airways	Cheapest£424	Average£591	FlexibilityNo cancel fee	On-time70%	Search British Airways flights

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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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Cheap flights from Portsmouth to San Jose, California from £573

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Portsmouth to San Jose

Cheapest flights from Portsmouth to San JoseExplore 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 21 September 2026.

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 21 September 2026.

Best flights from Portsmouth to San JoseDiscover carefully curated flight deals from Portsmouth to San Jose that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 September 2026.

Discover carefully curated flight deals from Portsmouth to San Jose that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 September 2026.

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Best time to book a flight from Portsmouth to San Jose

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Related info for your journey

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

How long is the flight from Portsmouth to San Jose, California?

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

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

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Portsmouth to San Jose

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Complete your trip

Complete your trip to San Jose by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to California

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Portsmouth and San Jose flights

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Top 2 airlines flying from Portsmouth to San Jose

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How does Cheapflights help users find flights from Portsmouth to San Jose?

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

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

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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 21 September 2026.

Best flights from Portsmouth to San Jose
Discover carefully curated flight deals from Portsmouth to San Jose that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 September 2026.