Chicago O'Hare Airport reports the largest traffic decline in May-2009

US Bureau of Transportation Statistics (BTS) stated (13-Aug-2009) Atlanta Hartsfield Jackson International Airport was the largest US airport in May-2009, ranked by total system (domestic and international) passenger enplanements on US airlines.

Chicago O'Hare International Airport registered the largest year-on-year decline at -13.0%. Details include:

• Atlanta: 3.6 million, -2.1% year-on-year;
• Chicago O'Hare: 2.5 million, -13.0%;
• Dallas/Ft Worth: 2.2 million, -5.9%;
• Denver: 2.0 million, -5.7%;
• Los Angeles: 1.8 million, -7.9%;
• Las Vegas: 1.6 million, -10.1%;
• Phoenix: 1.6 million, -8.5%;
• Houston Bush: 1.5 million, -12.0%;
• Charlotte: 1.5 million, -1.7%;
• New York JFK: 1.4 million, -4.8%.