Chicago O'Hare International Airport (IATA: ORD, ICAO: KORD, FAA LID: ORD) is one of the busiest airport of the world, located in Chicago Illinois. In 2008 the airport handles 881,566 airplane an average of 2,409 planes per day. Today KORD is the 4th busiest airport in the USA. This add-on requires a video card with at least 512Mb RAM.