Cheap flights from London to Costa Rica from £302

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 6/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap return flights

Enter your travel dates to find the best prices.
Air Canada Logo
14:10 - 22:00
LHR
-
SJO
14h 50m
1 stop
Air Canada Logo
07:10 - 08:35
SJO
-
LHR
18h 25m
1 stop
£576Air Canada
Thu, 28 May - Fri, 12 Jun
Multiple Airlines Logo
06:00 - 15:05
STN
-
SJO
16h 05m
1 stop
Multiple Airlines Logo
16:10 - 16:00
SJO
-
STN
16h 50m
1 stop
£593Multiple Airlines
Thu, 4 Jun - Tue, 16 Jun
Air Canada Logo
14:10 - 22:00
LHR
-
SJO
14h 50m
1 stop
Air Canada Logo
07:10 - 06:35
SJO
-
LHR
16h 25m
1 stop
£600Air Canada
Thu, 2 Jul - Wed, 22 Jul
Avianca Logo
22:05 - 08:50
LHR
-
SJO
17h 45m
1 stop
Avianca Logo
09:25 - 15:35
SJO
-
LHR
23h 10m
1 stop
£603Avianca
Mon, 25 May - Sun, 31 May
Avianca Logo
22:05 - 08:50
LHR
-
SJO
17h 45m
1 stop
Avianca Logo
16:00 - 15:35
SJO
-
LHR
16h 35m
1 stop
£604Avianca
Tue, 26 May - Fri, 5 Jun
KLM Logo
08:25 - 16:20
LCY
-
SJO
14h 55m
1 stop
KLM Logo
18:25 - 17:20
SJO
-
LCY
15h 55m
1 stop
£640KLM
Tue, 9 Jun - Thu, 18 Jun
KLM Logo
10:00 - 16:20
LCY
-
SJO
13h 20m
1 stop
KLM Logo
18:25 - 16:40
SJO
-
LCY
15h 15m
1 stop
£641KLM
Tue, 9 Jun - Tue, 23 Jun
Air France Logo
17:00 - 17:00
LGW
-
SJO
31h 00m
1 stop
Air France Logo
19:05 - 16:00
SJO
-
LGW
13h 55m
1 stop
£703Air France
Tue, 2 Jun - Wed, 10 Jun
United Airlines Logo
11:25 - 15:19
LHR
-
LIR
34h 54m
1 stop
United Airlines Logo
16:30 - 20:40
LIR
-
LHR
21h 10m
1 stop
£722United Airlines
Wed, 3 Jun - Wed, 10 Jun
United Airlines Logo
14:10 - 09:50
LHR
-
LIR
26h 40m
2 stops
United Airlines Logo
16:30 - 20:40
LIR
-
LHR
21h 10m
1 stop
£723United Airlines
Mon, 1 Jun - Wed, 10 Jun

Air Canada flights from London to Costa Rica

Our best Air Canada deals on London to Costa Rica flight tickets
Air Canada
28 May
LHR14:10London Heathrow
14h 50m
1 stop
SJO22:00San José Juan Santamaria Intl
12 Jun
SJO07:10San José Juan Santamaria Intl
18h 25m
1 stop
LHR08:35London Heathrow
£576
Air Canada
2 Jul
LHR14:10London Heathrow
14h 50m
1 stop
SJO22:00San José Juan Santamaria Intl
22 Jul
SJO07:10San José Juan Santamaria Intl
16h 25m
1 stop
LHR06:35London Heathrow
£600
Air Canada
24 May
LHR12:05London Heathrow
15h 30m
1 stop
SJO20:35San José Juan Santamaria Intl
12 Jun
SJO07:10San José Juan Santamaria Intl
18h 25m
1 stop
LHR08:35London Heathrow
£609

KLM flights from London to Costa Rica

Our best KLM deals on London to Costa Rica flight tickets
KLM
9 Jun
LHR06:30London Heathrow
16h 50m
1 stop
SJO16:20San José Juan Santamaria Intl
23 Jun
SJO18:25San José Juan Santamaria Intl
19h 30m
1 stop
LHR20:55London Heathrow
£626
KLM
13 Jun
LHR08:40London Heathrow
14h 40m
1 stop
SJO16:20San José Juan Santamaria Intl
23 Jun
SJO18:25San José Juan Santamaria Intl
14h 50m
1 stop
LHR16:15London Heathrow
£628
KLM
9 Jun
LCY08:25London City
14h 55m
1 stop
SJO16:20San José Juan Santamaria Intl
18 Jun
SJO18:25San José Juan Santamaria Intl
15h 55m
1 stop
LCY17:20London City
£640

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 9 May 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

LondonSan José

LHR - SJO

LHRSJO

London Heathrow

Thu 28/5

14:10-22:00

1 stop14h 50m

San José Juan Santamaria Intl

Fri 12/6

07:10-08:35

1 stop18h 25m

£576

LondonSan José

STN - SJO

STNSJO

London Stansted

Thu 4/6

06:00-15:05

1 stop16h 05m

San José Juan Santamaria Intl

Tue 16/6

16:10-16:00

1 stop16h 50m

£593

LondonSan José

LHR - SJO

LHRSJO

London Heathrow

Thu 2/7

14:10-22:00

1 stop14h 50m

San José Juan Santamaria Intl

Wed 22/7

07:10-06:35

1 stop16h 25m

£600

LondonSan José

LHR - SJO

LHRSJO

London Heathrow

Mon 25/5

22:05-08:50

1 stop17h 45m

San José Juan Santamaria Intl

Sun 31/5

09:25-15:35

1 stop23h 10m

£603

LondonSan José

LHR - SJO

LHRSJO

London Heathrow

Tue 26/5

22:05-08:50

1 stop17h 45m

San José Juan Santamaria Intl

Fri 5/6

16:00-15:35

1 stop16h 35m

£604

LondonSan José

LCY - SJO

LCYSJO

London City

Tue 9/6

08:25-16:20

1 stop14h 55m

San José Juan Santamaria Intl

Thu 18/6

18:25-17:20

1 stop15h 55m

£640
Fastest return journey

LondonSan José

LCY - SJO

LCYSJO

London City

Tue 9/6

10:00-16:20

1 stop13h 20m

San José Juan Santamaria Intl

Tue 23/6

18:25-16:40

1 stop15h 15m

£641

LondonSan José

LGW - SJO

LGWSJO

London Gatwick

Tue 2/6

17:00-17:00

1 stop31h 00m

San José Juan Santamaria Intl

Wed 10/6

19:05-16:00

1 stop13h 55m

£703

LondonLiberia

LHR - LIR

LHRLIR

London Heathrow

Wed 3/6

11:25-15:19

1 stop34h 54m

Liberia

Wed 10/6

16:30-20:40

1 stop21h 10m

£722

LondonLiberia

LHR - LIR

LHRLIR

London Heathrow

Mon 1/6

14:10-09:50

2 stops26h 40m

Liberia

Wed 10/6

16:30-20:40

1 stop21h 10m

£723

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 May is, on average, the cheapest month to fly to Costa Rica from London, with most prices found around £376. If you are unable to visit Costa Rica during the month of May, then departing from London during the month October is also very affordable. Most momondo users find prices during this month for around £434.

What is the cheapest day to depart on your flight to Costa Rica?

Our data shows that Sunday is the least expensive day to fly to Costa Rica. Tickets to fly out on this day can be as low as £935. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from London to Costa Rica for around £1,318.

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 from London 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 £665 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 £593 on momondo.

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

You could potentially save up to 15% 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

£728

Fastest flight time

11h 30m

Direct flights

Mon, Wed, Thu, Sat and Sun

Airports in Costa Rica

40 airports
The best one-way flight to Costa Rica from London in the past 72 hours is £728. The best return flight deal from London to Costa Rica found on momondo in the last 72 hours is £685.
The fastest flight from London to Costa Rica takes 11h 30m
Direct flights go from London to Costa Rica on Monday, Wednesday, Thursday, Saturday and Sunday. Airline offering direct flights is British Airways..
There are 40 airports in Costa Rica. From London there are direct flights to San José Juan Santamaria Intl (SJO).

Frequently asked questions about flying from London to Costa Rica

  • 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 £426Free CancellationRating
6.5
2,521 reviews
Search Avianca flights
SWISSPriceFrom £434Free CancellationRating
7.6
1,937 reviews
Search SWISS flights
Air CanadaPriceFrom £439Free CancellationRating
7.1
11,010 reviews
Search Air Canada flights
JetBluePriceFrom £468Free CancellationRating
7.1
2,978 reviews
Search JetBlue flights
FinnairPriceFrom £496Free CancellationRating
7.6
1,392 reviews
Search Finnair flights
United AirlinesPriceFrom £503Free CancellationRating
7.4
9,695 reviews
Search United Airlines flights
American AirlinesPriceFrom £508Free CancellationRating
7.1
11,668 reviews
Search American Airlines flights
LufthansaPriceFrom £520Free CancellationRating
6.8
7,984 reviews
Search Lufthansa flights
Air FrancePriceFrom £536Free CancellationRating
7.4
1,585 reviews
Search Air France flights
KLMPriceFrom £543Free CancellationRating
7.8
1,510 reviews
Search KLM 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
Mon 8/6
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Popular Cities in Costa Rica

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