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Cheap flights from London, ON to Costa Rica from C$ 331

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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — SJO
29 Apr — 6 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Costa Rica

Enter your travel dates to find the best prices.

Cheapest flights from London to Costa Rica
Explore the most affordable flight options available from London to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 March 2026.

Sun 31/512:20 p.m.
YXU
-
SJO
2 stops47h 51m
United Airlines
Wed 3/611:13 a.m.
SJO
-
YXU
2 stops25h 45m
United Airlines
Deal found 24/3C$ 625
Fri 22/512:20 p.m.
YXU
-
SJO
2 stops12h 19m
United Airlines
Tue 26/57:55 a.m.
SJO
-
YXU
2 stops35h 43m
United Airlines
Deal found 26/3C$ 802
Sun 31/56:10 p.m.
YXU
-
SJO
1 stop29h 50m
Air Canada
Wed 3/67:10 a.m.
SJO
-
YXU
1 stop8h 23m
Air Canada
Deal found 24/3C$ 853
Sun 17/55:10 a.m.
YXU
-
SJO
2 stops16h 27m
United Airlines
Fri 29/512:30 a.m.
SJO
-
YXU
2 stops19h 08m
United Airlines
Deal found 28/3C$ 854
Fri 24/45:10 a.m.
YXU
-
SJO
2 stops32h 41m
United Airlines
Fri 1/51:25 p.m.
SJO
-
YXU
2 stops26h 08m
United Airlines
Deal found 27/3C$ 979
Sun 12/712:20 p.m.
YXU
-
SJO
2 stops12h 19m
United Airlines
Wed 22/712:30 a.m.
SJO
-
YXU
2 stops15h 15m
United Airlines
Deal found 27/3C$ 1,041

Find flight deals from London to Costa Rica

Keep the following information in mind while searching for London to Costa Rica flight deals. Data was last updated 30 March 2026.

Round-trip from

C$ 625

One-way from

C$ 331
United Airlines
  • United Airlines
  • 31/5-3/6
  • 4 total stops
  • 73h 36m total
  • London to Costa Rica
Search Deals
United Airlines
  • United Airlines
  • 12/5
  • 2 total stops
  • 51h 27m total
  • London to Costa Rica
Search Deals

Cheapflights Fare Finder

 
Customize 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, Cheapflights users made 629,999 searches. Data last updated 30 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 round-trip

LondonSan José

YXU - SJO

YXUSJO

London

Sun 31/5

12:20 p.m.-10:11 a.m.

2 stops47h 51m

San José Juan Santamaria Intl

Wed 3/6

11:13 a.m.-2:58 p.m.

2 stops25h 45m

C$ 625

LondonSan José

YXU - SJO

YXUSJO

London

Fri 22/5

12:20 p.m.-10:39 p.m.

2 stops12h 19m

San José Juan Santamaria Intl

Tue 26/5

7:55 a.m.-9:38 p.m.

2 stops35h 43m

C$ 802
Quickest round-trip

LondonSan José

YXU - SJO

YXUSJO

London

Sun 31/5

5:10 a.m.-8:35 p.m.

2 stops17h 25m

San José Juan Santamaria Intl

Wed 3/6

7:10 a.m.-5:33 p.m.

1 stop8h 23m

C$ 859

LondonSan José

YXU - SJO

YXUSJO

London

Sun 12/7

12:20 p.m.-10:39 p.m.

2 stops12h 19m

San José Juan Santamaria Intl

Wed 22/7

12:30 a.m.-5:45 p.m.

2 stops15h 15m

C$ 1,041

LondonSan José

YXU - SJO

YXUSJO

London

Sun 31/5

6:10 p.m.-11:45 a.m.

3 stops43h 35m

San José Juan Santamaria Intl

Wed 3/6

3:10 p.m.-8:53 a.m.

2 stops15h 43m

C$ 1,049

LondonSan José

YXU - SJO

YXUSJO

London

Sun 17/5

6:10 p.m.-10:00 p.m.

1 stop29h 50m

San José Juan Santamaria Intl

Sat 30/5

7:15 a.m.-9:38 p.m.

2 stops12h 23m

C$ 1,279
Cheapest one-way

LondonSan José

YXU - SJO

YXUSJO

London

Tue 12/5

6:10 p.m.-7:37 p.m.

2 stops51h 27m

C$ 331

LondonSan José

YXU - SJO

YXUSJO

London

Wed 13/5

9:30 a.m.-7:37 p.m.

2 stops36h 07m

C$ 331
Quickest one-way

LondonSan José

YXU - SJO

YXUSJO

London

Mon 11/5

6:10 p.m.-12:21 p.m.

2 stops20h 11m

C$ 372

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/3

Sorted by cheapest first

Best time to book a flight from London to Costa Rica

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

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

Currently, September is the cheapest month in which you can book a flight from London, Ontario to Costa Rica (average of C$ 186). Flying from London, Ontario to Costa Rica in August is currently the most expensive (average of C$ 440). 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.

Related info for your journey

Find useful and relevant information for your journey from London to Costa Rica. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from London to Costa Rica?

    If you book a flight to Costa Rica from London, you will be flying from London, which is the city’s only airport. London (YXU) is located 8.6 km from the centre of London.

  • How long is the flight from London, Ontario to Costa Rica?

    There are many flights that can get you from London, Ontario to Costa Rica in 17h 25m. Fly via United Airlines or Air Canada to get the fastest option. London, Ontario and Costa Rica are separated by a distance of 3682 km. This flight may include one or multiple stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from London 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, Ontario to Costa Rica?

    Currently, September is the cheapest month in which you can book a flight from London, Ontario to Costa Rica (average of C$ 186). Flying from London, Ontario to Costa Rica in August is currently the most expensive (average of C$ 440). 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

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

When you search for this flight from London to Costa Rica, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Costa Rica from London.

Can Cheapflights find flights from London 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 London to Costa Rica, users can toggle the no change fees filter when performing a flight search.

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