Gone are the glory days of the Boeing 747, the 'Queen of the Skies'. The first commercial double-decker aircraft flew in 1969, and though several are still flying today, only a few airlines operate the type on commercial passenger flights. According to data from Cirium, an aviation analytics firm, there are only four airlines operating 747s this month: Air China, Korean Air, Lufthansa, and Aeroflot. //

In October 2014, 33 airlines operated 747 passenger flights, and British Airways (BA) had the most. Ten years ago, 12,171 747 flights were scheduled worldwide, more than 2,000 of which were operated by BA. More than half of BA's 747 flights were to and from the United States (US). //

Data shows that in October 2014, 1,112 flights were scheduled to and from the US on BA 747s. This included 11 cities and more than 350,000 seats. It should come as no surprise that the busiest 747 route was from Heathrow to John F. Kennedy International Airport (JFK) in New York. Ten years ago, there were 215 flights scheduled in each direction to JFK on 747s, up to eight flights in one day.