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Cheap flights from London, ON to Costa Rica from C$ 344

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 26/2. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — SJO
13 Feb — 20 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap 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 14 January 2026.

Round-trip from

C$ 619

One-way from

C$ 344
Air Canada
  • Air Canada
  • 15/5-18/5
  • 4 total stops
  • 78h 53m total
  • London to Costa Rica
Search Deals
United Airlines
  • United Airlines
  • 26/2
  • 2 total stops
  • 28h 31m total
  • London to Costa Rica
Search Deals

Find 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 14 January 2026.

Fri 15/56:10 p.m.
YXU
-
SJO
2 stops52h 25m
Air Canada
Mon 18/57:15 a.m.
SJO
-
YXU
2 stops26h 28m
Air Canada
Deal found 12/1C$ 619
Sat 16/512:20 p.m.
YXU
-
SJO
1 stop11h 40m
Air Canada
Mon 18/57:15 a.m.
SJO
-
YXU
2 stops12h 23m
Air Canada
Deal found 12/1C$ 665
Tue 14/45:10 a.m.
YXU
-
SJO
2 stops31h 01m
United Airlines
Thu 16/411:13 a.m.
SJO
-
YXU
2 stops43h 30m
United Airlines
Deal found 11/1C$ 702
Fri 20/25:10 a.m.
YXU
-
SJO
2 stops16h 29m
United Airlines
Sun 8/37:45 a.m.
SJO
-
YXU
2 stops31h 20m
United Airlines
Deal found 12/1C$ 708
Sat 7/25:10 a.m.
YXU
-
SJO
2 stops32h 46m
United Airlines
Sun 15/212:35 p.m.
SJO
-
YXU
2 stops43h 11m
United Airlines
Deal found 12/1C$ 751
Wed 14/15:40 p.m.
YXU
-
SJO
2 stops44h 16m
United Airlines
Wed 4/311:28 p.m.
SJO
-
YXU
2 stops20h 53m
United Airlines
Deal found 13/1C$ 773
Sat 21/25:10 a.m.
YXU
-
SJO
2 stops38h 06m
United Airlines
Sat 7/32:20 p.m.
SJO
-
YXU
2 stops29h 01m
United Airlines
Deal found 12/1C$ 815

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 14 January 2026.
Use the filters below to find and compare flights from London to Costa Rica that are best for you.

Fly from

London

Fly to

Costa Rica

Route

Depart

Return

Price

LondonSan José

YXU - SJO

YXUSJO

London

Sat 16/5

6:10 p.m.-8:35 p.m.

2 stops28h 25m

San José Juan Santamaria Intl

Mon 18/5

7:15 a.m.-5:33 p.m.

2 stops32h 18m

C$ 619

LondonSan José

YXU - SJO

YXUSJO

London

Fri 15/5

6:10 p.m.-8:35 p.m.

2 stops52h 25m

San José Juan Santamaria Intl

Mon 18/5

7:15 a.m.-11:43 a.m.

2 stops26h 28m

C$ 619

LondonSan José

YXU - SJO

YXUSJO

London

Tue 14/4

5:10 a.m.-10:11 a.m.

2 stops31h 01m

San José Juan Santamaria Intl

Thu 16/4

11:13 a.m.-8:43 a.m.

2 stops43h 30m

C$ 702

LondonSan José

YXU - SJO

YXUSJO

London

Fri 20/2

5:10 a.m.-8:39 p.m.

2 stops16h 29m

San José Juan Santamaria Intl

Sun 8/3

7:45 a.m.-5:05 p.m.

2 stops31h 20m

C$ 708

LondonSan José

YXU - SJO

YXUSJO

London

Sat 7/2

5:10 a.m.-12:56 p.m.

2 stops32h 46m

San José Juan Santamaria Intl

Sun 15/2

12:35 p.m.-8:46 a.m.

2 stops43h 11m

C$ 751

LondonSan José

YXU - SJO

YXUSJO

London

Sat 21/2

5:10 a.m.-6:16 p.m.

2 stops38h 06m

San José Juan Santamaria Intl

Sat 7/3

2:20 p.m.-8:21 p.m.

2 stops29h 01m

C$ 815

LondonSan José

YXU - SJO

YXUSJO

London

Thu 26/2

9:25 a.m.-12:56 p.m.

2 stops28h 31m

C$ 344

LondonSan José

YXU - SJO

YXUSJO

London

Mon 30/3

5:40 p.m.-10:11 a.m.

2 stops42h 31m

C$ 354

LondonSan José

YXU - SJO

YXUSJO

London

Sat 28/3

5:10 a.m.-10:11 a.m.

2 stops31h 01m

C$ 354

LondonSan José

YXU - SJO

YXUSJO

London

Sun 22/3

5:40 p.m.-9:32 p.m.

3 stops53h 52m

C$ 355

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/1

Showing 1-10 of 17 results
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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$ 416). 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 28h 25m. Fly via Air Canada or United Airlines 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$ 416). 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

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Alternative routes for London to Costa Rica

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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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Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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