As one would expect, over time, the composition of widebody aircraft flying over the Atlantic changes (although they are all Boeing and Airbus aircraft). New generations of aircraft replace older generations. The busiest airport serving European destinations is New York’s JFK International Airport, which has 112-126 daily departures to Europe. Not all transatlantic flights have widebody aircraft; for example, there will be 25 narrowbody Boeing 737 transatlantic routes this summer.