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Cheap flights from Portsmouth to Costa Rica from £622

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 29/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SJO
3 Jun — 10 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portsmouth to Costa Rica

Enter your travel dates to find the best prices.

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 4 May 2026.

Sun 14/609:15
SOU
-
SJO
2 stops16h 11m
KLM
Sun 21/619:05
SJO
-
SOU
2 stops30h 30m
KLM
Deal found 30/4£807
Sun 14/609:20
SOU
-
SJO
3 stops43h 45m
Multiple Airlines
Sun 21/619:05
SJO
-
SOU
2 stops30h 30m
Multiple Airlines
Deal found 30/4£876
Mon 3/809:15
SOU
-
SJO
2 stops45h 28m
Multiple Airlines
Mon 31/808:13
SJO
-
SOU
2 stops41h 22m
Multiple Airlines
Deal found 1/5£1,135
Thu 18/609:20
SOU
-
LIR
2 stops34h 20m
Multiple Airlines
Thu 25/614:00
LIR
-
SOU
2 stops43h 50m
Multiple Airlines
Deal found 3/5£1,142

Find 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 4 May 2026.

Round-trip from

£807

One-way from

£622

Popular in

December

Cheapest in

October

Average price

£642
KLM
  • KLM
  • 14/6-21/6
  • 4 total stops
  • 46h 41m total
  • Portsmouth to Costa Rica
Search Deals
29/5
  • 29/5
  • 3 total stops
  • 43h 22m total
  • Portsmouth to Costa Rica
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£32 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

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 4 May 2026.
Use the filters below to find and compare flights from Portsmouth to Costa Rica that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

SouthamptonSan José

SOU - SJO

SOUSJO

Southampton Eastleigh

Sun 14/6

09:15-18:26

2 stops16h 11m

San José Juan Santamaria Intl

Sun 21/6

19:05-08:35

2 stops30h 30m

£807

SouthamptonSan José

SOU - SJO

SOUSJO

Southampton Eastleigh

Sun 14/6

09:20-22:05

3 stops43h 45m

San José Juan Santamaria Intl

Sun 21/6

19:05-08:35

2 stops30h 30m

£876

SouthamptonLiberia

SOU - LIR

SOULIR

Southampton Eastleigh

Thu 18/6

09:20-12:40

2 stops34h 20m

Liberia

Thu 25/6

14:00-16:50

2 stops43h 50m

£1,142

SouthamptonSan José

SOU - SJO

SOUSJO

Southampton Eastleigh

Mon 3/8

09:20-23:40

3 stops45h 20m

San José Juan Santamaria Intl

Mon 31/8

13:25-08:35

2 stops36h 10m

£1,434
Cheapest one-way
Fastest single journey

SouthamptonSan José

SOU - SJO

SOUSJO

Southampton Eastleigh

Fri 29/5

17:20-16:20

1 stop30h 00m

£652

Flights are sorted by cheapest return flights first.

Deals found on 1/5

Sorted by cheapest first

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

Reviews of airlines servicing Costa Rica

Get insights into the airlines that provide service to Costa Rica. 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 Costa Rica. Reviews last updated 4 May 2026.
Check out reviews from past customers who have flown with KLM from Portsmouth to Costa Rica to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,511 reviews
Check prices

Comfort

7.7

Crew

8.4

Boarding

7.8

Food

7.3

Entertainment

7.2

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
KLM
7.8
Good
1,511 reviews
KLM
7.8
Good
1,511 reviews
Check prices

Comfort

7.7

Crew

8.4

Boarding

7.8

Food

7.3

Entertainment

7.2

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

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 16h 11m. KLM provides one of the quickest options available for as low as £807. There are 5369 mi between Portsmouth and Costa Rica.

  • What are the cheapest flights from Portsmouth to Costa Rica?

    On average you can expect to pay £1,005 for a flight from Portsmouth to Costa Rica. The cheapest flight overall is £651 while the most popular route, (Southampton Eastleigh - Liberia) is currently priced at £1,142.

  • 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.

See more FAQs

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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.
Heathrow to San José flights
Gatwick to San José flights
London City to San José flights
Stansted to San José flights
Heathrow to Panama City flights
Stansted to Panama City flights
Gatwick to Panama City flights
Luton to San José flights
London City to Panama City flights
Heathrow to Philip S.W.Goldson flights
Heathrow to Guatemala City flights
Luton to Panama City flights
Gatwick to Guatemala City flights
London City to Guatemala City flights
Manchester to San José flights
Heathrow to San Salvador flights
Stansted to Guatemala City flights
Gatwick to Philip S.W.Goldson flights
Heathrow to Managua flights
Heathrow to San Pedro Sula flights
Gatwick to San Salvador flights
Gatwick to Managua flights
Gatwick to San Pedro Sula flights
London City to San Pedro Sula flights
London City to San Salvador flights
Heathrow to Liberia flights
London City to Managua flights
Edinburgh to Managua flights
London City to Liberia flights
Stansted to San Salvador flights
Gatwick to Liberia flights
Edinburgh to San José flights
Heathrow to Coxen Hole flights
Manchester to Philip S.W.Goldson flights
Manchester to Guatemala City flights
Manchester to Panama City flights
Edinburgh to Panama City flights
Newcastle upon Tyne to Panama City flights
Stansted to Managua flights
Manchester to Liberia flights
Manchester to Managua flights
Edinburgh to Guatemala City flights
Birmingham to Guatemala City flights
Edinburgh to Liberia flights
Edinburgh to San Pedro Sula flights
Birmingham to Philip S.W.Goldson flights
Edinburgh to Philip S.W.Goldson flights
Birmingham to Panama City flights
Birmingham to San Salvador 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 4 May 2026.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest£428Average£601FlexibilityNo cancel feeOn-time71%
Search Avianca flights
SWISSCheapest£435Average£638FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Air CanadaCheapest£441Average£603FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
JetBlueCheapest£469Average£535FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
FinnairCheapest£497Average£641FlexibilityNo cancel feeOn-time76%
Search Finnair flights
United AirlinesCheapest£505Average£691FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest£510Average£644FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
LufthansaCheapest£522Average£636FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air FranceCheapest£538Average£1,005FlexibilityNo cancel feeOn-time77%
Search Air France flights
KLMCheapest£545Average£861FlexibilityNo cancel feeOn-time75%
Search KLM 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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