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Cheap flights from Portsmouth to San José from £762

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SJO
30 Nov — 7 Dec1
1 adult
1 adult, Economy, 0 bags

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Cheapest flights from Portsmouth to San José
Explore the most affordable flight options available from Portsmouth to San José. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 October 2025.

Sun 7/1218:05SOU - SJO
1 stop30h 20mKLM
Sun 21/1220:30SJO - SOU
1 stop29h 40mKLM
Deal found 30/10£762
Mon 15/1208:40SOU - SJO
1 stop15h 45mKLM
Mon 22/1220:30SJO - SOU
1 stop29h 40mKLM
Deal found 30/10£1,037
Mon 15/1219:55SOU - SJO
3 stops37h 55mMultiple Airlines
Mon 22/1220:05SJO - SOU
2 stops30h 05mMultiple Airlines
Deal found 30/10£1,387

Cheap flight deals from Portsmouth to San José

Keep the following information in mind while searching for Portsmouth to San José flight deals. Data was last updated 31 October 2025.

Round-trip from

£762

Popular in

December

Cheapest in

September

Average price

£631
KLM
  • KLM
  • 7/12-21/12
  • 2 total stops
  • 60h 00m total
  • Portsmouth to San José
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£42 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£15 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Portsmouth to San José 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 31 October 2025.
Use the filters below to find and compare flights from Portsmouth to San José that are best for you.

Fly from

Portsmouth

Fly to

San José

Route

Depart

Return

Price

SouthamptonSan José

SOU - SJO

SOUSJO

Southampton Eastleigh

Sun 7/12

18:05-18:25

1 stop30h 20m

San José Juan Santamaria Intl

Sun 21/12

20:30-08:10

1 stop29h 40m

£791

SouthamptonSan José

SOU - SJO

SOUSJO

Southampton Eastleigh

Thu 26/3

18:05-18:25

1 stop30h 20m

San José Juan Santamaria Intl

Mon 30/3

07:00-17:00

2 stops27h 00m

£901

Flights are sorted by cheapest return flights first.

Deals found on 29/10

Best time to book a flight from Portsmouth to San José

Have a flexible travel schedule? Discover the best time to fly to San José 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 José

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

Currently, November is the cheapest month in which you can book a flight from Portsmouth to San José (average of £483). Flying from Portsmouth to San José in July is currently the most expensive (average of £603). 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 SJO?

Find hourly flight availability from Portsmouth to San José. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 31 October 2025.

It’s typically best to fly out from Portsmouth to San José in the afternoon. Doing so could potentially save you 27% on the flight price compared to flying in the evening, which is usually more expensive.

What is the cheapest day to fly from Portsmouth to San José?

Use this chart to determine the cheapest time to fly return from Portsmouth to San José. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their Portsmouth to San José flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Sunday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

Find useful and relevant information for your journey from Portsmouth to San José. 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 José from Portsmouth?

    San José Juan Santamaria Intl (SJO) is the airport you will fly into if you book a flight from Portsmouth to San José. You should not have trouble finding flights to Juan Santamaria Intl from Portsmouth; the airport handles an average of 0 inbound flights from Portsmouth per day. You should also have plenty of airline options to choose from since 14 airlines have flights to the San José airport from Portsmouth. It is only a 8.8 mi journey from Juan Santamaria Intl (SJO) to San José’s city center.

  • How long is the flight from Portsmouth to San José?

    For as low as £791, KLM can have you in San José from Portsmouth in 30h 20m. There are 5369 mi between Portsmouth and San José.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portsmouth to San José 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 José?

    Currently, November is the cheapest month in which you can book a flight from Portsmouth to San José (average of £483). Flying from Portsmouth to San José in July is currently the most expensive (average of £603). 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 San José?

Book flights to San José if you plan to visit one of these locations
Jacó
Manuel Antonio

Browse thousands of different options on Cheapflights for your next trip

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Top 10 airlines flying from Portsmouth to San José

Discover the top 10 airlines that operate flights from Portsmouth to San José. 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 31 October 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£455Average£574FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
JetBlueCheapest£483Average£575FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Air CanadaCheapest£506Average£577FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air FranceCheapest£533Average£689FlexibilityNo cancel feeOn-time77%
Search Air France flights
KLMCheapest£543Average£656FlexibilityNo cancel feeOn-time75%
Search KLM flights
LufthansaCheapest£570Average£649FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
SWISSCheapest£576Average£650FlexibilityNo cancel feeOn-time79%
Search SWISS flights
AviancaCheapest£581Average£634FlexibilityNo cancel feeOn-time71%
Search Avianca flights
United AirlinesCheapest£594Average£686FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
IberiaCheapest£607Average£874FlexibilityNo cancel feeOn-time77%
Search Iberia 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 José?

Deals for Portsmouth to San José 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 José?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Portsmouth to San José for you. Better yet — we are completely free to use.

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

Yes, we can. To see specific flights from Portsmouth to San José with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

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

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