By the early 1950s, Midway Airport, Chicago's primary airport since 1931, had become too crowded despite multiple expansions and could not handle the planned first generation of jets.
By the early 1950s, Midway Airport, Chicago's primary airport since 1931, was the world's busiest airport and had become too crowded despite multiple expansions. There was also concern that Midway could not handle the planned first generation of jets.