Search for cheap flights and last-minute deals with Netflights. We've scanned all the flights from London Heathrow to Liberia Costa Rica, across the four airlines that offer this route. We've found that 19 / Feb / 2026 is the cheapest date to travel at the moment, but it's best to go through the results to see which flight suits you.
American Airlines is the most popular airline that flies from London Heathrow to Liberia Costa Rica. But it's still worth looking at other options, as there are 21 flights to Liberia Costa Rica every week. If you want to broaden your search, look at flights departing from other airports.
Generally speaking, the flight from London Heathrow to Liberia Costa Rica takes around 21 hrs 25 mins. The fastest flight takes 19 hrs 50 mins to cover the 8756 km distance. You can view all flight times yourself in the results list.
If you want to travel in December, it's best to book your flights early, as this is peak season in Liberia Costa Rica. The cheapest month to fly is normally June – try searching three to four months prior to then to get a bargain. You can also search by month, which will reveal the cheapest time of the week to fly.
