O’Hare Loses Title Of Busiest Airport As COVID-19 Brings Huge Drops In Air Traffic For 2020 Posted on January 22, 2021 by Chicago 1 Chicago Chicago News & Search 1 News - 1 eMovies - 1 eMusic - 1 eBooks - 1 Search Search for: COVID-19 brought massive drops in flight operations nationwide, but Chicago’s O’Hare International Airport had some of the biggest declines among major U.S. cities and lost the national busiest airport title to Atlanta. Katie Johnston reports. 1 Chicago Chicago News & Search 1 News - 1 eMovies - 1 eMusic - 1 eBooks - 1 Search Search for: