Flights from San Juan to Heathrow are found to be more expensive on Monday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Heathrow.
To save up to 38% on this flight, we recommend booking at least 51 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from San Juan to Heathrow from $813 1-2 weeks out and tickets from $886 for flights departing within the next 72 hours.
February can be a great time to fly to Heathrow from San Juan with a flight ticket averaging about $634. Cheapflights users have found deals in the month of February for as cheap as $394. The most expensive prices can be found in the month of June.
It’s typically best to fly out from San Juan to Heathrow in the noon. Doing so could potentially save you 16% on the flight price compared to flying in the morning, which is usually more expensive.