Complex sentence: O'Hare has a strong international presence, with flights to more than 60 foreign destinations: it is the fourth busiest international gateway in the United States behind John F. Kennedy International Airport in New York City, Los Angeles International Airport and Miami International Airport.
Split into simpler sentences: O'Hare has a strong international presence, with flights to more than 60 foreign destinations. It is the fourth busiest international gateway in the United States behind John F. Kennedy International Airport, Los Angeles International Airport and Miami International Airport.