Statistics

The Chicago Department of Aviation is comprised of O'Hare International and Midway International Airports. The statistics include monthly flight operations, passenger totals and cargo tonnage. The reports are compiled as the result of a monthly total provided by the airlines and summarized by the Chicago Department of Aviation.

Year 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr
2011 January *
January * 		April *
April * 		July *
July * 		October *
October *
February *
February * 		May *
May * 		August
August * 		November *
November *
March *
March * 		June *
June * 		September *
September * 		December *
December
2010 January *
 April *
April * 		July *
July * 		October *
February *
 May *
 August *
August * 		November
March *
 June *
June * 		September *
 December *
2009 January *
 April *
 July
 October *
February *
 May *
 August *
 November *
November
March *
 June
 September *
 December *
2008 January
 April *
 July *
 October *
October *
February
February 		May
 August *
August * 		November *
November *
March
 June
 September *
September * 		December *
December *
2007 January
 April
 July
 October
February
 May
 August
 November
March
 June
 September
 December
2006 January
 April
 July
 October
February
 May
 August
 November
March
 June
 September
 December
2005 January
 April
 July
 October
February
 May
 August
 November *
March
 June *
 September
 December
2004 January
 April
 July *
 October
February
 May
 August
 November *
March
 June
 September
 December *
2003 January
 April
 July
 October
February
 May *
 August *
 November
March *
 June
 September *
 December
2002 January
 April
 July
 October
February
 May
 August
 November
March
 June
 September
 December *
2001 January
 April
 July
 October
February
 May
 August
 November
March
 June
 September
 December
2000 January
 April
 July
 October
February
 May
 August
 November
March
 June
 September
 December
* Revised Month