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Cheap flights from Portsmouth to Costa Rica from £738

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
16 Oct — 23 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Portsmouth to Costa Rica

Keep the following information in mind while searching for Portsmouth to Costa Rica flight deals. Data was last updated 16 September 2025.

Round-trip from

£738

Popular in

December

Cheapest in

October

Average price

£606
KLM
  • KLM
  • 7/12-21/12
  • 3 total stops
  • 59h 25m total
  • Portsmouth to Costa Rica
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£44 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£16 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from Portsmouth to Costa Rica

Cheapest flights from Portsmouth to Costa Rica
Explore the most affordable flight options available from Portsmouth to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2025.

Sun 7/1218:05SOU - SJO
2 stops29h 45mKLM
Sun 21/1220:30SJO - SOU
1 stop29h 40mKLM
Deal found 14/9£738
Thu 25/909:20SOU - SJO
2 stops33h 48mKLM
Mon 29/913:35SJO - SOU
2 stops36h 10mKLM
Deal found 13/9£782
Thu 25/909:20SOU - LIR
2 stops57h 40mKLM
Mon 29/913:25LIR - SOU
2 stops44h 35mKLM
Deal found 14/9£3,495

Cheapflights Fare Finder

 
Customise your flight search to find flights from Portsmouth to Costa Rica 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 16 September 2025.
Use the filters below to find and compare flights from Portsmouth to Costa Rica that are best for you.

Fly from

Portsmouth

Fly to

Costa Rica

Route

Depart

Return

Price

SouthamptonSan José

SOU - SJO

SOUSJO

Southampton Eastleigh

Sun 7/12

18:05-17:50

2 stops29h 45m

San José Juan Santamaria Intl

Sun 21/12

20:30-08:10

1 stop29h 40m

£738

SouthamptonLiberia

SOU - LIR

SOULIR

Southampton Eastleigh

Thu 25/9

09:20-12:00

2 stops33h 40m

Liberia

Mon 29/9

13:25-17:00

2 stops44h 35m

£3,495

SouthamptonSan José

SOU - SJO

SOUSJO

Southampton Eastleigh

Sat 11/10

09:20-11:58

2 stops57h 38m

£5,342

SouthamptonSan José

SOU - SJO

SOUSJO

Southampton Eastleigh

Fri 17/10

09:20-11:58

2 stops57h 38m

£5,342

SouthamptonSan José

SOU - SJO

SOUSJO

Southampton Eastleigh

Mon 13/10

17:35-11:58

2 stops49h 23m

£5,342

SouthamptonSan José

SOU - SJO

SOUSJO

Southampton Eastleigh

Wed 15/10

09:20-11:58

2 stops57h 38m

£5,342

SouthamptonSan José

SOU - SJO

SOUSJO

Southampton Eastleigh

Thu 16/10

09:20-11:58

2 stops33h 38m

£5,342

SouthamptonSan José

SOU - SJO

SOUSJO

Southampton Eastleigh

Sun 12/10

09:20-11:58

2 stops33h 38m

£5,342

SouthamptonSan José

SOU - SJO

SOUSJO

Southampton Eastleigh

Tue 14/10

17:35-11:58

2 stops49h 23m

£5,342

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Best time to book a flight from Portsmouth to Costa Rica

Have a flexible travel schedule? Discover the best time to fly to Costa Rica 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 Costa Rica

What is the cheapest month to book a flight from Portsmouth to Costa Rica?

Currently, October is the cheapest month in which you can book a flight from Portsmouth to Costa Rica (average of £769). Flying from Portsmouth to Costa Rica in December is currently the most expensive (average of £1,101). 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 CR?

Find hourly flight availability from Portsmouth to Costa Rica. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 16 September 2025.

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

Related info for your journey

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

  • How long is the flight from Portsmouth to Costa Rica?

    A quick flight from Portsmouth to Costa Rica can take about 29h 45m. KLM provides one of the quickest options available for as low as £738. There are 5369 mi between Portsmouth and Costa Rica.

  • Can I find deals for flights from Portsmouth to Costa Rica that include hotel bookings?

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

  • How can I find direct flights from Portsmouth to Costa Rica?

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

  • Can I find deals for business class flights from Portsmouth to Costa Rica?

    Yes. Cheapflights offers flight deals from Portsmouth to Costa Rica 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 Costa Rica?

    Currently, October is the cheapest month in which you can book a flight from Portsmouth to Costa Rica (average of £769). Flying from Portsmouth to Costa Rica in December is currently the most expensive (average of £1,101). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Portsmouth to Costa Rica

See prices for flight routes from nearby airports that may be better suited for you.
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Edinburgh to Panama City flights
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Edinburgh to Liberia flights
Birmingham to Philip S.W.Goldson flights
Stansted to San Salvador flights
Birmingham to Panama City flights
Leeds to Panama City flights
Heathrow to Coxen Hole flights
Manchester to San Salvador flights
Southampton to Liberia flights
Southampton to Guatemala City flights

Top 10 airlines flying from Portsmouth to Costa Rica

Discover the top 10 airlines that operate flights from Portsmouth to Costa Rica. 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 16 September 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£441Average£557FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
TUI AirwaysCheapest£447Average£494FlexibilityNo cancel feeOn-timeN/A
Search TUI Airways flights
JetBlueCheapest£453Average£559FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Air CanadaCheapest£490Average£575FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air FranceCheapest£517Average£661FlexibilityNo cancel feeOn-time77%
Search Air France flights
KLMCheapest£518Average£625FlexibilityNo cancel feeOn-time75%
Search KLM flights
LufthansaCheapest£553Average£629FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
AviancaCheapest£554Average£669FlexibilityNo cancel feeOn-time71%
Search Avianca flights
SWISSCheapest£559Average£628FlexibilityNo cancel feeOn-time79%
Search SWISS flights
United AirlinesCheapest£561Average£641FlexibilityNo 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 Costa Rica?

Cheapflights helps you search for flights from Portsmouth to Costa Rica via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Portsmouth to Costa Rica?

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

Can Cheapflights find flights from Portsmouth to Costa Rica with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Portsmouth to Costa Rica, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Portsmouth to Costa Rica become cheaper?

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

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