How long is the flight from Costa Rica to London?

KLM, British Airways, and Air Europa can get you from Costa Rica to London in just under 16h 05m. Your travel time can differ by up to 20h 02m. Costa Rica and London are separated by a distance of 5429 mi. This flight may include one or multiple stops.

What are the cheapest airlines to fly from Costa Rica to London one-way?

To fly one-way, consider booking your trip with KLM, which is currently one of the cheapest options available, starting at £393. American Airlines flights start at £417 while deals on Air Canada start at £450 one-way.

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

What are the most popular routes from Costa Rica to London?

Most travelers choose San José Juan Santamaria Intl - London Heathrow, San José Juan Santamaria Intl - London Gatwick or San José Juan Santamaria Intl - London City when deciding on the best route from Costa Rica to London.

What are the cheapest flights from Costa Rica to London?

The cheapest flight price from Costa Rica to London is £497. On average you can expect to pay £499. The most popular route, (San José Juan Santamaria Intl - London Heathrow), can usually be booked for £570.

What are the most popular airlines that fly from Costa Rica to London?

Air France, KLM and British Airways are the most popular airlines when flying from Costa Rica to London.

What is the cheapest time of day to fly from CR to LON?

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

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

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

How can I find direct flights from Costa Rica to London?

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

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

Yes. Cheapflights offers flight deals from Costa Rica to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£231+ Cheap Flights from Costa Rica to London

Cheap flight deals from Costa Rica to London

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from Costa Rica to London
Explore the most affordable flight options available from Costa Rica to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2026.

Mon 26/1013:00 -

1 stop16h 40m

Mon 2/1116:00 -

1 stop26h 45m

Deal found 11/9£572

Mon 23/1119:30 -

1 stop15h 30m

Wed 9/1206:20 -

1 stop14h 50m

Deal found 14/9£573

Sat 17/1014:00 -

1 stop16h 15m

Sat 31/1011:15 -

2 stops31h 30m

Deal found 11/9£579

Sun 22/1107:00 -

1 stop17h 25m

Sun 6/1217:35 -

1 stop27h 35m

Deal found 12/9£579

Mon 23/1107:00 -

1 stop17h 25m

Sun 6/1219:20 -

1 stop25h 50m

Deal found 13/9£580

Thu 19/1120:00 -

1 stop19h 50m

Sat 28/1108:50 -

1 stop16h 10m

Deal found 12/9£582

Sat 19/913:25 -

1 stop16h 50m

Sun 27/909:20 -

1 stop33h 40m

Deal found 12/9£583

Fri 20/1118:20 -

1 stop18h 00m

Sun 6/1219:20 -

1 stop25h 50m

Deal found 12/9£584

Tue 27/1013:25 -

1 stop16h 15m

Tue 3/1120:25 -

2 stops46h 35m

Deal found 12/9£587

Tue 3/1114:25 -

1 stop15h 15m

Tue 10/1119:20 -

2 stops28h 10m

Deal found 13/9£587

Sun 1/1119:30 -

1 stop17h 45m

Wed 11/1108:40 -

1 stop14h 50m

Deal found 13/9£590

Thu 10/1220:00 -

1 stop19h 50m

Thu 21/106:15 -

1 stop17h 15m

Deal found 16/9£590

Best flights from Costa Rica to London
Discover carefully curated flight deals from Costa Rica to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2026.

Mon 26/1013:00 -

1 stop16h 40m

Mon 2/1116:00 -

1 stop26h 45m

Deal found 11/9£572

Tue 3/1121:45 -

1 stop17h 05m

Tue 10/1107:45 -

1 stop17h 30m

Deal found 13/9£617

Sun 18/1016:10 -

1 stop16h 05m

Wed 11/1119:15 -

1 stop26h 30m

Deal found 13/9£782

Wed 6/101:15 -

2 stops22h 40m

Tue 19/106:50 -

2 stops19h 03m

Deal found 13/9£819

Mon 1/214:53 -

2 stops36h 07m

Wed 10/217:25 -

2 stops34h 29m

Deal found 14/9£889

Thu 22/1013:00 -

1 stop17h 15m

Tue 3/1111:45 -

2 stops31h 00m

Deal found 12/9£579

Sun 14/214:53 -

2 stops25h 42m

Sat 6/317:25 -

3 stops34h 27m

Deal found 17/9£1,186

Fri 18/1216:35 -

1 stop35h 10m

Thu 14/111:40 -

1 stop33h 45m

Deal found 16/9£1,214

Sat 17/1014:00 -

1 stop16h 15m

Sat 31/1011:15 -

2 stops31h 30m

Deal found 11/9£579

Sat 31/1007:40 -

2 stops44h 35m

Wed 18/1111:40 -

1 stop31h 58m

Deal found 15/9£643

Tue 23/221:45 -

1 stop16h 00m

Tue 2/308:20 -

1 stop16h 55m

Deal found 15/9£644

Tue 29/913:19 -

1 stop16h 56m

Tue 6/1015:15 -

1 stop27h 45m

Deal found 12/9£593

Sat 24/1021:10 -

1 stop20h 00m

Sat 7/1105:55 -

1 stop19h 05m

Deal found 16/9£652

Tue 27/1017:25 -

1 stop14h 35m

Tue 24/1108:50 -

1 stop36h 55m

Deal found 16/9£791

Fri 26/214:10 -

1 stop15h 30m

Sun 14/310:50 -

1 stop16h 34m

Deal found 15/9£596

Mon 11/108:45 -

2 stops20h 05m

Sun 24/106:50 -

2 stops19h 03m

Deal found 12/9£819

Sat 31/1007:40 -

2 stops44h 35m

Sun 22/1111:40 -

1 stop32h 40m

Deal found 16/9£663

Sun 28/215:25 -

2 stops19h 35m

Mon 15/316:00 -

1 stop25h 45m

Deal found 15/9£611

Thu 8/1014:48 -

2 stops18h 37m

Thu 22/1010:00 -

2 stops18h 48m

Deal found 16/9£901

Mon 1/215:44 -

1 stop13h 46m

Wed 17/211:10 -

Nonstop11h 30m

Deal found 14/9£882

Fri 30/1007:40 -

2 stops41h 30m

Tue 24/1111:40 -

1 stop32h 40m

Deal found 16/9£666

Thu 22/1013:00 -

2 stops20h 40m

Tue 3/1109:20 -

2 stops33h 25m

Deal found 12/9£618

Thu 8/1014:48 -

2 stops18h 37m

Thu 15/1010:00 -

2 stops18h 48m

Deal found 13/9£943

Fri 30/1007:40 -

2 stops41h 30m

Sat 21/1111:40 -

1 stop32h 40m

Deal found 16/9£672

Mon 12/1019:05 -

2 stops17h 20m

Thu 29/1016:00 -

1 stop26h 00m

Deal found 12/9£623

Mon 1/214:53 -

2 stops25h 42m

Wed 17/217:25 -

3 stops34h 29m

Deal found 14/9£1,187

Fri 30/1007:40 -

2 stops41h 30m

Thu 19/1111:40 -

1 stop32h 40m

Deal found 16/9£672

Sat 31/1014:25 -

2 stops19h 40m

Wed 18/1111:45 -

2 stops31h 00m

Deal found 15/9£641

Fri 30/1007:40 -

2 stops41h 30m

Fri 20/1111:40 -

1 stop34h 55m

Deal found 16/9£692

Fri 12/201:50 -

3 stops50h 05m

Sat 27/210:55 -

2 stops43h 35m

Deal found 14/9£1,258

Find flight deals from Costa Rica to London

Round-trip from	£572
One-way from	£231
Popular in	July
Cheapest in	February
Average price	£696
Good one-way deal	£498 or less

KLM
26/10-2/11
2 total stops
43h 25m total
Costa Rica to London

Search Deals

31/10-31/12
2 total stops
44h 35m total
Costa Rica to London

Search Deals

Highest demand for flights based on searches. 16% potential increase in price (£104 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 September 2026

Search Deals

Price to beat on a one-way flight from Costa Rica to London (LON).

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LiberiaLondon

LIR Liberia - LGW London Gatwick

LIRLGW

Liberia

Sat 31/10

07:40-10:15

2 stops44h 35m

London Gatwick

Wed 31/12

00:00-17:00

Nonstop0h 00m

£231

LiberiaLondon

LIR Liberia - LHR London Heathrow

LIRLHR

Liberia

Wed 3/2

07:40-12:50

1 stop23h 10m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£300

LiberiaLondon

LIR Liberia - LCY London City

LIRLCY

Liberia

Sat 31/10

16:15-20:35

3 stops46h 20m

London City

Wed 31/12

00:00-17:00

Nonstop0h 00m

£335

San JoséLondon

SJO San José Juan Santamaria Intl - LTN London Luton

SJOLTN

San José Juan Santamaria Intl

Thu 25/2

20:00-13:45

1 stop35h 45m

London Luton

Wed 31/12

00:00-17:00

Nonstop0h 00m

£397

San JoséLondon

SJO San José Juan Santamaria Intl - LTN London Luton

SJOLTN

San José Juan Santamaria Intl

Sat 24/10

21:10-13:45

1 stop34h 35m

London Luton

Wed 31/12

00:00-17:00

Nonstop0h 00m

£399

San JoséLondon

SJO San José Juan Santamaria Intl - LCY London City

SJOLCY

San José Juan Santamaria Intl

Sun 1/11

19:30-16:35

1 stop15h 05m

London City

Wed 31/12

00:00-17:00

Nonstop0h 00m

£401

San JoséLondon

SJO San José Juan Santamaria Intl - LCY London City

SJOLCY

San José Juan Santamaria Intl

Sun 8/11

19:30-17:20

1 stop15h 50m

London City

Wed 31/12

00:00-17:00

Nonstop0h 00m

£401

San JoséLondon

SJO San José Juan Santamaria Intl - LCY London City

SJOLCY

San José Juan Santamaria Intl

Tue 13/10

18:25-19:45

1 stop18h 20m

London City

Wed 31/12

00:00-17:00

Nonstop0h 00m

£401

San JoséLondon

SJO San José Juan Santamaria Intl - LCY London City

SJOLCY

San José Juan Santamaria Intl

Sat 24/10

19:30-17:20

1 stop15h 50m

London City

Wed 31/12

00:00-17:00

Nonstop0h 00m

£401

San JoséLondon

SJO San José Juan Santamaria Intl - LCY London City

SJOLCY

San José Juan Santamaria Intl

Tue 24/11

19:30-18:25

1 stop16h 55m

London City

Wed 31/12

00:00-17:00

Nonstop0h 00m

£401

Flights are sorted by cheapest return flights first.

Deals found on 16/9

Showing 1-10 of 60 resultsSorted by cheapest first

...

Best time to book a flight from Costa Rica to London

Have a flexible travel schedule? Discover the best time to fly to London from Costa Rica with our price prediction graph.

LIR-LHR

SJO-LTN

SJO-LCY

SJO-LHR

SJO-LGW

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 Costa Rica to London

CR0-LON

LIR-LHR

SJO-LTN

SJO-LCY

SJO-LHR

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

Currently, February is the cheapest month in which you can book a flight from Costa Rica to London (average of £582). Flying from Costa Rica to London in July is currently the most expensive (average of £872). 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 often are flights from Costa Rica to London delayed?

About 17% of weekly flights between Costa Rica and London have experienced delays in the past year, with the average delay time being 189 minutes.

What is the most punctual flight time for Costa Rica to London flights?

Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Saturday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Costa Rica to London flights?

Over the past year, British Airways have had the lowest number of delays on this route, with just 17% of flights being delayed.

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

Booking 48 days in advance of your planned departure date is, on average, the best time to get cheap flights from Costa Rica to London. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing London

Read reviews from past customers who have flown with KLM,Air France, andIberia from Costa Rica to London. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,578 reviews

Check prices

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

1,578 reviews

KLM

7.8

Good

1,578 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Apr 2026

OKC - ATL

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

Air France

7.5

Good

1,650 reviews

KLM

7.8

Good

1,578 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Apr 2026

OKC - ATL

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

Iberia

7.0

Good

3,249 reviews

KLM

7.8

Good

1,578 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Apr 2026

OKC - ATL

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

British Airways

6.7

Okay

8,228 reviews

KLM

7.8

Good

1,578 reviews

Check prices

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

How long is the flight from Costa Rica to London?
KLM, British Airways, and Air Europa can get you from Costa Rica to London in just under 16h 05m. Your travel time can differ by up to 20h 02m. Costa Rica and London are separated by a distance of 5429 mi. This flight may include one or multiple stops.
What are the cheapest airlines to fly from Costa Rica to London one-way?
To fly one-way, consider booking your trip with KLM, which is currently one of the cheapest options available, starting at £393. American Airlines flights start at £417 while deals on Air Canada start at £450 one-way.
What are the most popular routes from Costa Rica to London?
Most travelers choose San José Juan Santamaria Intl - London Heathrow, San José Juan Santamaria Intl - London Gatwick or San José Juan Santamaria Intl - London City when deciding on the best route from Costa Rica to London.
What are the cheapest flights from Costa Rica to London?
The cheapest flight price from Costa Rica to London is £497. On average you can expect to pay £499. The most popular route, (San José Juan Santamaria Intl - London Heathrow), can usually be booked for £570.
Can I find deals for flights from Costa Rica to London that include hotel bookings?
Yes. In addition to deals on Costa Rica to London flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Costa Rica to London?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Costa Rica to London.
Can I find deals for business class flights from Costa Rica to London?
Yes. Cheapflights offers flight deals from Costa Rica to London 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 Costa Rica to London?
Currently, February is the cheapest month in which you can book a flight from Costa Rica to London (average of £582). Flying from Costa Rica to London in July is currently the most expensive (average of £872). 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

Hounslow

Luton

Milton Keynes

Gatwick

Wembley

Slough

Ilford

Hayes

Croydon

Colchester

Eastbourne

Brentford

Enfield

Southend-on-Sea

Barnet

Southall

Watford

Kingston upon Thames

Dagenham

Dover

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Philip S.W.Goldson to Edinburgh flights

David to Manchester flights

Liberia to Manchester flights

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Guatemala City to Southampton flights

Top 3 airlines flying from Costa Rica to London

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£508	Average£658	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
KLM	Cheapest£562	Average£726	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Air France	Cheapest£568	Average£691	FlexibilityNo cancel fee	On-time77%	Search Air France flights

Fly with Cheapflights

How does Cheapflights help users find flights from Costa Rica to London?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to London from Costa Rica today with Cheapflights!

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

Cheapflights helps you find that perfect flight to London from Costa Rica by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Yes! Cheapflights helps users easily find flights from Costa Rica to London with no change fees.

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

Not ready to book yet? You can track prices for flights from Costa Rica to London on Cheapflights with our Price Alert feature and get notified when better prices are available.

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Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Costa Rica to London from £231

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 31/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Costa Rica to London

Cheapest flights from Costa Rica to LondonExplore the most affordable flight options available from Costa Rica to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2026.

Explore the most affordable flight options available from Costa Rica to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2026.

Best flights from Costa Rica to LondonDiscover carefully curated flight deals from Costa Rica to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2026.

Discover carefully curated flight deals from Costa Rica to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2026.

Direct flights from Costa Rica to LondonExplore direct flight options from Costa Rica to London based on user searches, and compare prices and availability for your desired travel dates. Data last updated 17 September 2026.

Explore direct flight options from Costa Rica to London based on user searches, and compare prices and availability for your desired travel dates. Data last updated 17 September 2026.

Last-minute flights from Costa Rica to LondonDiscover last-minute flight deals from Costa Rica to London. Data last updated 17 September 2026 and is based on user searches.

Discover last-minute flight deals from Costa Rica to London. Data last updated 17 September 2026 and is based on user searches.

One-way flights from Costa Rica to LondonSearch for one-way flight options from Costa Rica to London. Find affordable one-way fares based on user searches. Data last updated 17 September 2026.

Search for one-way flight options from Costa Rica to London. Find affordable one-way fares based on user searches. Data last updated 17 September 2026.

Find flight deals from Costa Rica to London

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good one-way deal

Cheapflights Fare Finder

Use the filters below to find and compare flights from Costa Rica to London that are best for you.

Best time to book a flight from Costa Rica to London

Have a flexible travel schedule? Discover the best time to fly to London from Costa Rica with our price prediction graph.

Cheapflights Insights

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

How often are flights from Costa Rica to London delayed?

About 17% of weekly flights between Costa Rica and London have experienced delays in the past year, with the average delay time being 189 minutes.

What is the most punctual flight time for Costa Rica to London flights?

Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Saturday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Costa Rica to London flights?

Over the past year, British Airways have had the lowest number of delays on this route, with just 17% of flights being delayed.

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

Booking 48 days in advance of your planned departure date is, on average, the best time to get cheap flights from Costa Rica to London. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing London

Read reviews from past customers who have flown with KLM,Air France, andIberia from Costa Rica to London. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

How long is the flight from Costa Rica to London?

What are the cheapest airlines to fly from Costa Rica to London one-way?

What are the most popular routes from Costa Rica to London?

What are the cheapest flights from Costa Rica to London?

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

How can I find direct flights from Costa Rica to London?

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

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

Travelling to a place near London?

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.

Alternative routes for Costa Rica to London

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to London by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to England

Book a non-stop flight to one of these other cities located in England.

Search flights from Costa Rica to London by cabin class

Find flights from Costa Rica to London, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to London

Explore flights to London departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 17 September 2026.

Costa Rica and London flights

Browse other Costa Rica and London flight options. Last updated on 17 September 2026.

Popular flight searches

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Top 3 airlines flying from Costa Rica to London

Fly with Cheapflights

How does Cheapflights help users find flights from Costa Rica to London?

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

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

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

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Travel Smart

Cheapest flights from Costa Rica to London
Explore the most affordable flight options available from Costa Rica to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2026.

Best flights from Costa Rica to London
Discover carefully curated flight deals from Costa Rica to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2026.

Direct flights from Costa Rica to London
Explore direct flight options from Costa Rica to London based on user searches, and compare prices and availability for your desired travel dates. Data last updated 17 September 2026.

Last-minute flights from Costa Rica to London
Discover last-minute flight deals from Costa Rica to London. Data last updated 17 September 2026 and is based on user searches.

One-way flights from Costa Rica to London
Search for one-way flight options from Costa Rica to London. Find affordable one-way fares based on user searches. Data last updated 17 September 2026.