The days of stepping on Concorde and arriving in New York before you took off are sadly gone. However, what isn't realised is that the same trip from London to New York can vary quite dramatically depending on the flight you take. Take a random weekday date in June. The fastest journey time from London Heathrow to New York JFK is 7hr 25mins with either Air India or the 0855 from BA. However, it's worth noting flights to Newark are somewhat slower, with the flights being as long as 8hr 15mins with BA (1840). Whilst it's unlikely to make a huge different, those of us on tight time schedules may give it some thought.