Flight times will vary slightly depending on which region of the USA you plan to visit, but most flights are typically direct. London to New York is typically the fastest route at around 7-8 hours, while flights to Nashville and Miami take around 9 hours. If you’re visiting Los Angeles from London, your flight length will typically be 11 hours and 20 minutes. Finally, if you are flying to Alaska or Hawaii from London, there will be one stopover as flights take at least 13 hours and 17 hours each.