If you're looking to fly from London Heathrow to San Juan Puerto Rico, you might like to know that 05 / Sep / 2025 currently has the cheapest flights. At the moment, there are five airlines flying to San Juan Puerto Rico. Go through the results to find the right flights for you – you can adjust the filters to see find even more flights to San Juan Puerto Rico.
The most popular airlines offering flights to San Juan Puerto Rico are Virgin Atlantic, British Airways & Iberia Airlines. Virgin Atlantic is the most popular one, but that doesn’t mean their flights will be the cheapest. If you can't find a flight time that suits you, why not look at flying out from a different airport?
Generally speaking, the flight from London Heathrow to San Juan Puerto Rico takes around 12 hrs 40 mins. The fastest flight takes 11 hrs to cover the 6735 km distance. You can view all flight times yourself in the results list.
The cheapest month to fly to San Juan Puerto Rico is June, while April is when the prices of flights, hotels and car hire will be at their highest. If you need somewhere to stay for your trip to Puerto Rico, take a look at our accommodation options.
