Cheap flights from Costa Rica to London from £273

The cheapest month to fly to London from Costa Rica is in February. Flight prices, which tend to average around £541, are often lower during this time because this is during the off-season. The month of October is another great option to travel to London, with average flight prices from Costa Rica averaging around £546.

Our data shows that Thursday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £596. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Costa Rica to London for around £1,179.

Fly from San José Juan Santamaria Intl to London Gatwick for the best Costa Rica - London flight prices

You are more likely to see cheaper flights to London from Costa Rica when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around £661 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Costa Rica for as low as £587 on momondo.

There are 2 cabin classes available to choose from on Costa Rica to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 23% on your flight if you consider stops on a Costa Rica to London flight.

KLM, Air Europa, and American Airlines are the most popular carriers operating from Costa Rica to London

KLM, British Airways and Iberia are the top three most popular airlines that fly to London from Costa Rica according to our data. KLM is the first choice among our users, with 30% of people opting to fly with this airline when travelling to London. Keep in mind that there are 4 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

Historically, on average around 22% of flights between Costa Rica and London have experienced a delay on any given week. The average delay length over the past 12 months has been 191 minutes.

Generally, flights departing in the evening tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Saturday has historically seen more delays on average compared to the rest of the week.

According to our data, British Airways have had the fewest delays on this route over the last 12 months, with about 22% of their flights experiencing any sort of delay.

The number of flights available between Costa Rica and London is 3 per week as of February 2026. The most frequent departure day is Tue, with 33% of weekly flights leaving on this day.

Flight times from Costa Rica to London vary, but if you’re flying out of San José and flying into London Heathrow Airport (one of the most popular routes), then the duration is 14h 05m on average. Another popular route from Costa Rica to London is flying from Liberia to London Heathrow Airport, which will take roughly 17h 10m. Keep in mind that layovers or delays could extend your travel time.