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Cheap flights from London Heathrow Airport to Costa Rica from £309

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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SJO
9 Aug — 16 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Costa Rica

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Costa Rica
Explore the most affordable flight options available from Heathrow to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 July 2026.

Mon 14/922:05
LHR
-
SJO
1 stop32h 50m
Avianca
Sun 27/901:40
SJO
-
LHR
1 stop30h 55m
Avianca
Deal found 7/7£661
Sat 7/1113:45
LHR
-
SJO
2 stops40h 05m
SWISS
Sat 21/1109:20
SJO
-
LHR
2 stops29h 40m
SWISS
Deal found 8/7£662
Fri 23/1008:40
LHR
-
SJO
2 stops18h 40m
SWISS
Sun 1/1108:45
SJO
-
LHR
2 stops30h 15m
SWISS
Deal found 7/7£662
Sat 14/1121:40
LHR
-
SJO
1 stop17h 10m
Avianca
Mon 30/1116:15
SJO
-
LHR
1 stop16h 20m
Avianca
Deal found 5/7£663
Tue 17/1121:40
LHR
-
SJO
1 stop17h 10m
Avianca
Fri 27/1116:15
SJO
-
LHR
1 stop16h 20m
Avianca
Deal found 5/7£664
Sat 26/922:05
LHR
-
SJO
2 stops41h 25m
Avianca
Thu 8/1009:25
SJO
-
LHR
1 stop23h 10m
Avianca
Deal found 9/7£665
Thu 19/1113:45
LHR
-
SJO
2 stops40h 05m
SWISS
Thu 3/1208:45
SJO
-
LHR
2 stops41h 20m
SWISS
Deal found 7/7£665
Thu 15/1006:00
LHR
-
SJO
2 stops23h 00m
SWISS
Thu 29/1007:45
SJO
-
LHR
2 stops42h 20m
SWISS
Deal found 7/7£666
Tue 3/1120:05
LHR
-
SJO
1 stop24h 50m
SWISS
Mon 9/1120:35
SJO
-
LHR
2 stops19h 05m
SWISS
Deal found 8/7£667
Fri 9/1008:40
LHR
-
SJO
2 stops18h 40m
Multiple Airlines
Fri 16/1015:50
SJO
-
LHR
1 stop17h 35m
Multiple Airlines
Deal found 7/7£668
Wed 4/1113:00
LHR
-
LIR
1 stop31h 20m
Air Canada
Sun 8/1115:10
LIR
-
LHR
1 stop35h 20m
Air Canada
Deal found 6/7£693
Thu 20/806:55
LHR
-
LIR
2 stops36h 15m
United Airlines
Thu 27/813:20
LIR
-
LHR
1 stop35h 35m
United Airlines
Deal found 6/7£700

Find flight deals from Heathrow to Costa Rica

Keep the following information in mind while searching for Heathrow to Costa Rica flight deals. Data was last updated 10 July 2026.

Round-trip from

£661

One-way from

£309

Popular in

December

Cheapest in

September

Average price

£829

Good round-trip deal

£777 or less
Avianca
  • Avianca
  • 14/9-27/9
  • 2 total stops
  • 63h 45m total
  • London to Costa Rica
Search Deals
7/9
  • 7/9
  • 3 total stops
  • 51h 35m total
  • London to Costa Rica
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£20 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from London Heathrow to Costa Rica.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow 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 10 July 2026.
Use the filters below to find and compare flights from London Heathrow Airport 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

Sun 30/8

06:50-20:19

2 stops20h 29m

San José Juan Santamaria Intl

Tue 15/9

07:55-10:40

2 stops19h 45m

£710

LondonLiberia

LHR - LIR

LHRLIR

London Heathrow

Wed 4/11

12:05-13:10

1 stop31h 05m

Liberia

Sun 8/11

08:45-07:55

2 stops17h 10m

£724

LondonLiberia

LHR - LIR

LHRLIR

London Heathrow

Sat 26/12

12:05-11:24

1 stop29h 19m

Liberia

Sun 10/1

08:35-10:25

2 stops19h 50m

£724

LondonLiberia

LHR - LIR

LHRLIR

London Heathrow

Sat 25/7

18:00-10:44

1 stop23h 44m

Liberia

Sat 1/8

11:10-11:35

1 stop17h 25m

£724

LondonLiberia

LHR - LIR

LHRLIR

London Heathrow

Sat 8/8

16:40-10:44

2 stops25h 04m

Liberia

Mon 24/8

13:20-11:35

1 stop15h 15m

£724

LondonLiberia

LHR - LIR

LHRLIR

London Heathrow

Fri 7/8

16:00-10:44

1 stop25h 44m

Liberia

Thu 27/8

13:20-06:45

2 stops34h 25m

£724

LondonLiberia

LHR - LIR

LHRLIR

London Heathrow

Sat 8/8

16:40-09:50

2 stops24h 10m

Liberia

Wed 26/8

13:20-07:45

1 stop35h 25m

£724

LondonLiberia

LHR - LIR

LHRLIR

London Heathrow

Mon 10/8

13:40-12:10

1 stop29h 30m

Liberia

Mon 24/8

13:20-11:35

1 stop15h 15m

£724

LondonLiberia

LHR - LIR

LHRLIR

London Heathrow

Tue 11/8

18:00-12:10

2 stops25h 10m

Liberia

Sat 22/8

13:20-06:45

2 stops34h 25m

£724

LondonSan José

LHR - SJO

LHRSJO

London Heathrow

Tue 21/7

10:00-22:39

1 stop19h 39m

San José Juan Santamaria Intl

Sun 23/8

08:45-06:45

2 stops39h 00m

£733

Flights are sorted by cheapest return flights first.

Deals found on 9/7

Showing 1-10 of 36 resultsSorted by cheapest first
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Best time to book a flight from Heathrow to Costa Rica

Have a flexible travel schedule? Discover the best time to fly to Costa Rica from Heathrow 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 London Heathrow Airport to Costa Rica

What is the cheapest month to book a flight from London Heathrow Airport to Costa Rica?

Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Costa Rica (average of £304). Flying from London Heathrow Airport to Costa Rica in July is currently the most expensive (average of £598). 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.

How far ahead should I book a flight from London Heathrow Airport to Costa Rica?

Booking 15 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Costa Rica. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 10 July 2026.
See what other customers who have flown with United Airlines,American Airlines, andAir Canada from London Heathrow Airport to Costa Rica have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,965 reviews
Check prices

Boarding

7.7

Food

6.7

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Tim,Sept 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
United Airlines
7.4
Good
9,965 reviews
United Airlines
7.4
Good
9,965 reviews
Check prices

Boarding

7.7

Food

6.7

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Tim,Sept 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
American Airlines
7.1
Good
11,802 reviews
United Airlines
7.4
Good
9,965 reviews
Check prices

Boarding

7.7

Food

6.7

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Tim,Sept 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
Air Canada
7.1
Good
11,324 reviews
United Airlines
7.4
Good
9,965 reviews
Check prices

Boarding

7.7

Food

6.7

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Tim,Sept 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
Lufthansa
6.8
Okay
8,128 reviews
United Airlines
7.4
Good
9,965 reviews
Check prices

Boarding

7.7

Food

6.7

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Tim,Sept 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
Avianca
6.5
Okay
2,523 reviews
United Airlines
7.4
Good
9,965 reviews
Check prices

Boarding

7.7

Food

6.7

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Tim,Sept 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

Related info for your journey

Find useful and relevant information for your journey from Heathrow 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 London Heathrow Airport to Costa Rica?

    A quick flight from London Heathrow Airport to Costa Rica can take about 20h 29m. United Airlines provides one of the quickest options available for as low as £710. London Heathrow Airport and Costa Rica are separated by a distance of 5407 mi.

  • What are the cheapest flights from London Heathrow Airport to Costa Rica?

    The cheapest flight price from London Heathrow Airport to Costa Rica is £738. On average you can expect to pay £834. The most popular route, (London Heathrow - San José Juan Santamaria Intl), can usually be booked for £637.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow 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 London Heathrow Airport to Costa Rica?

    Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Costa Rica (average of £304). Flying from London Heathrow Airport to Costa Rica in July is currently the most expensive (average of £598). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 10 airlines flying from Heathrow to Costa Rica

Discover the top 10 airlines that operate flights from Heathrow 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 10 July 2026.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest£433Average£611FlexibilityNo cancel feeOn-time71%
Search Avianca flights
SWISSCheapest£440Average£680FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Air CanadaCheapest£442Average£629FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
JetBlueCheapest£474Average£520FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
LufthansaCheapest£494Average£699FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
FinnairCheapest£503Average£644FlexibilityNo cancel feeOn-time76%
Search Finnair flights
American AirlinesCheapest£515Average£653FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air FranceCheapest£562Average£765FlexibilityNo cancel feeOn-time77%
Search Air France flights
United AirlinesCheapest£590Average£751FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
KLMCheapest£606Average£897FlexibilityNo 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 Heathrow to Costa Rica?

Deals for Heathrow to Costa Rica 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 Heathrow to Costa Rica?

Cheapflights simply makes it quick and affordable to book flights from Heathrow to Costa Rica by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Yes, we can. To see specific flights from Heathrow to Costa Rica 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 Heathrow to Costa Rica become cheaper?

Yes! Start tracking prices for Heathrow to Costa Rica flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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