Cheap flights from London to Costa Rica from £270

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Costa Rica departing on 24/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap return flights

Enter your travel dates to find the best prices.
JetBlue Logo
08:15 - 12:40
LHR
-
LIR
35h 25m
1 stop
JetBlue Logo
14:00 - 20:45
LIR
-
LHR
23h 45m
1 stop
£582JetBlue
Wed, 6 May - Wed, 13 May
Avianca Logo
22:05 - 08:50
LHR
-
SJO
17h 45m
1 stop
Avianca Logo
09:45 - 14:35
SJO
-
LHR
22h 50m
1 stop
£606Avianca
Wed, 16 Sep - Wed, 28 Oct
Air France Logo
10:25 - 17:00
LGW
-
SJO
13h 35m
1 stop
Air France Logo
19:05 - 16:00
SJO
-
LGW
13h 55m
1 stop
£607Air France
Mon, 1 Jun - Mon, 8 Jun
Air France Logo
10:25 - 17:00
LGW
-
SJO
13h 35m
1 stop
Air France Logo
19:05 - 16:00
SJO
-
LGW
13h 55m
1 stop
£609Air France
Wed, 3 Jun - Sun, 21 Jun
KLM Logo
17:50 - 16:20
LCY
-
SJO
29h 30m
1 stop
KLM Logo
18:25 - 17:20
SJO
-
LCY
15h 55m
1 stop
£627KLM
Wed, 3 Jun - Thu, 18 Jun
KLM Logo
17:50 - 16:20
LCY
-
SJO
29h 30m
1 stop
KLM Logo
18:25 - 16:40
SJO
-
LCY
15h 15m
1 stop
£628KLM
Wed, 27 May - Thu, 18 Jun
SWISS Logo
09:15 - 17:35
LCY
-
SJO
15h 20m
1 stop
SWISS Logo
15:50 - 12:35
SJO
-
LCY
13h 45m
1 stop
£644SWISS
Wed, 27 May - Wed, 17 Jun
SWISS Logo
09:15 - 17:35
LCY
-
SJO
15h 20m
1 stop
SWISS Logo
15:50 - 12:35
SJO
-
LCY
13h 45m
1 stop
£667SWISS
Wed, 10 Jun - Wed, 24 Jun
United Airlines Logo
07:25 - 12:10
LHR
-
LIR
35h 45m
2 stops
United Airlines Logo
13:20 - 07:40
LIR
-
LHR
35h 20m
1 stop
£682United Airlines
Mon, 17 Aug - Tue, 25 Aug
United Airlines Logo
07:30 - 12:10
LHR
-
LIR
35h 40m
2 stops
United Airlines Logo
11:49 - 12:25
LIR
-
LHR
17h 36m
1 stop
£683United Airlines
Mon, 4 May - Mon, 11 May

KLM flights from London to Costa Rica

Our best KLM deals on London to Costa Rica flight tickets
KLM
3 Jun
LCY17:50London City
29h 30m
1 stop
SJO16:20San José Juan Santamaria Intl
18 Jun
SJO18:25San José Juan Santamaria Intl
15h 55m
1 stop
LCY17:20London City
£627
KLM
26 May
LCY10:00London City
13h 20m
1 stop
SJO16:20San José Juan Santamaria Intl
18 Jun
SJO18:25San José Juan Santamaria Intl
15h 15m
1 stop
LCY16:40London City
£651
KLM
26 May
LCY08:25London City
14h 55m
1 stop
SJO16:20San José Juan Santamaria Intl
9 Jun
SJO18:25San José Juan Santamaria Intl
17h 05m
1 stop
LCY18:30London City
£658

SWISS flights from London to Costa Rica

Our best SWISS deals on London to Costa Rica flight tickets
SWISS
5 Jun
LHR06:00London Heathrow
15h 05m
1 stop
SJO14:05San José Juan Santamaria Intl
19 Jun
SJO15:50San José Juan Santamaria Intl
19h 00m
1 stop
LHR17:50London Heathrow
£639
SWISS
27 May
LCY09:15London City
15h 20m
1 stop
SJO17:35San José Juan Santamaria Intl
17 Jun
SJO15:50San José Juan Santamaria Intl
13h 45m
1 stop
LCY12:35London City
£644
SWISS
27 May
LGW09:20London Gatwick
15h 15m
1 stop
SJO17:35San José Juan Santamaria Intl
12 Jun
SJO15:50San José Juan Santamaria Intl
19h 00m
1 stop
LGW17:50London Gatwick
£648

momondo Fare Finder

 
Customise your flight search to find flights from London 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, momondo users made 279,928 searches. Data last updated 23 March 2026.
Use the filters below to find and compare flights from London to Costa Rica that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonLiberia

LHR - LIR

LHRLIR

London Heathrow

Wed 6/5

08:15-12:40

1 stop35h 25m

Liberia

Wed 13/5

14:00-20:45

1 stop23h 45m

£582

LondonSan José

LHR - SJO

LHRSJO

London Heathrow

Wed 16/9

22:05-08:50

1 stop17h 45m

San José Juan Santamaria Intl

Wed 28/10

09:45-14:35

1 stop22h 50m

£606
Fastest return journey

LondonSan José

LGW - SJO

LGWSJO

London Gatwick

Mon 1/6

10:25-17:00

1 stop13h 35m

San José Juan Santamaria Intl

Mon 8/6

19:05-16:00

1 stop13h 55m

£607

LondonSan José

LGW - SJO

LGWSJO

London Gatwick

Wed 3/6

10:25-17:00

1 stop13h 35m

San José Juan Santamaria Intl

Sun 21/6

19:05-16:00

1 stop13h 55m

£609

LondonSan José

LCY - SJO

LCYSJO

London City

Wed 3/6

17:50-16:20

1 stop29h 30m

San José Juan Santamaria Intl

Thu 18/6

18:25-17:20

1 stop15h 55m

£627

LondonSan José

LCY - SJO

LCYSJO

London City

Wed 27/5

17:50-16:20

1 stop29h 30m

San José Juan Santamaria Intl

Thu 18/6

18:25-16:40

1 stop15h 15m

£628

LondonSan José

LCY - SJO

LCYSJO

London City

Wed 27/5

09:15-17:35

1 stop15h 20m

San José Juan Santamaria Intl

Wed 17/6

15:50-12:35

1 stop13h 45m

£644

LondonSan José

LCY - SJO

LCYSJO

London City

Wed 10/6

09:15-17:35

1 stop15h 20m

San José Juan Santamaria Intl

Wed 24/6

15:50-12:35

1 stop13h 45m

£667

LondonLiberia

LHR - LIR

LHRLIR

London Heathrow

Mon 17/8

07:25-12:10

2 stops35h 45m

Liberia

Tue 25/8

13:20-07:40

1 stop35h 20m

£682

LondonLiberia

LHR - LIR

LHRLIR

London Heathrow

Mon 4/5

07:30-12:10

2 stops35h 40m

Liberia

Mon 11/5

11:49-12:25

1 stop17h 36m

£683

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Costa Rica from

How to get the cheapest flight ticket from London to Costa Rica

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Costa Rica?

The month of September is, on average, the cheapest month to fly to Costa Rica from London, with most prices found around £612. If you are unable to visit Costa Rica during the month of September, then departing from London during the month October is also very affordable. Most momondo users find prices during this month for around £616.

What is the cheapest London to Costa Rica flight route?

Fly from London Gatwick to San José Juan Santamaria Intl for the best London - Costa Rica flight prices

How far in advance should I book a flight to Costa Rica?

You are more likely to see cheaper flights to Costa Rica from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Costa Rica for around £664 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Costa Rica from London for as low as £612 on momondo.

What cabin class options are available on London to Costa Rica flights?

There is only 1 cabin class available to choose from on London to Costa Rica flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on London to Costa Rica flights?

You could potentially save up to 58% on your flight if you consider stops on a London to Costa Rica flight.

Cheap London to Costa Rica flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London to Costa Rica

Best price found

£821

Fastest flight time

11h 40m

Direct flights

Sun

Airports in Costa Rica

40 airports
The best flight deal from London to Costa Rica found on momondo in the last 72 hours is £821
The fastest flight from London to Costa Rica takes 11h 40m
Direct flights go from London to Costa Rica on Sunday. There are no airlines offering direct flights..
There are 40 airports in Costa Rica. From London there are direct flights to San José Juan Santamaria Intl (SJO).
  • When did momondo last update prices for flights from London to Costa Rica?

    Prices for flights from London to Costa Rica refresh daily.

  • How many operators does momondo search for flights from London to Costa Rica?

  • How old do you have to be to fly from London to Costa Rica?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Costa Rica.

  • What documentation or ID do you need to fly to Costa Rica?

    The required travel and health documents for your Costa Rica trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Costa Rica. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from London to Costa Rica?

Best airlines flying from London to Costa Rica

Compare and see reviews for airlines that fly from London to Costa Rica with momondo
Airline
Rating
Free Cancellation
Price
AviancaPriceFrom £435Free CancellationRating
6.5
2,505 reviews
Search Avianca flights
SWISSPriceFrom £442Free CancellationRating
7.5
1,903 reviews
Search SWISS flights
Air CanadaPriceFrom £457Free CancellationRating
7.1
10,835 reviews
Search Air Canada flights
FinnairPriceFrom £459Free CancellationRating
7.7
1,374 reviews
Search Finnair flights
IcelandairPriceFrom £471Free CancellationRating
7.0
625 reviews
Search Icelandair flights
JetBluePriceFrom £477Free CancellationRating
7.2
2,906 reviews
Search JetBlue flights
American AirlinesPriceFrom £518Free CancellationRating
7.1
11,487 reviews
Search American Airlines flights
LufthansaPriceFrom £548Free CancellationRating
6.8
7,863 reviews
Search Lufthansa flights
KLMPriceFrom £549Free CancellationRating
7.8
1,477 reviews
Search KLM flights
Air FrancePriceFrom £557Free CancellationRating
7.4
1,547 reviews
Search Air France flights

Why use momondo?

Why should I use momondo to find a flight deal from London to Costa Rica?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to Costa Rica. momondo saves you time and could save you money on your trip.

Can I find flights from London to Costa Rica with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for London to Costa Rica flights to just show those with flexible booking policies.

How can momondo help me find flights from London to Costa Rica?

momondo provides multiple filters to help you find the best flight to Costa Rica from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from London to Costa Rica right now. Can momondo alert me if prices change?

Yes. momondo can track prices for London to Costa Rica flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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1 adult
Wed 22/4
Wed 29/4

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Popular flights according to clicks in the last 7 days on momondo