O'Hare International Airport, which was the world's busiest airport from 1961 through 1997, remained stuck in the No. 2 spot last year in the U.S. as measured by the number of flights, the Federal Aviation Administration said Thursday.
O'Hare International Airport, which was the world's busiest airport from 1961 through 1997, remained stuck in the No. 2 spot last year in the U.S. as measured by the number of flights, the Federal Aviation Administration said Thursday.
