The air traffic controller confirms the route and then returns to the radio to ask for more details of the incident.
"It was around about six or seven miles west of London," says the pilot.
A spokeswoman for Virgin Atlantic said the flight landed safely and the airline was now working with the authorities to identify the source of the laser.
"The VS025 travelling from London Heathrow to New York JFK flight has returned to Heathrow as a precautionary measure due to a laser beam incident," she said.
"The safety of our crew and customers is our top priority and we apologise for any inconvenience to those onboard.
All customers will be offered overnight accommodation and we will get them on their journey as soon as possible."