O'Hare International Airport (Simple English Wikipedia)

Bhaskara, Vinay (October 1, 2014). "Spirit Airlines Adds Two New Routes at Chicago O'Hare". Airways News. Archived from the original on October 3, 2014. Retrieved October 1, 2014.

aviation-safety.net

"Aviation Safety Network > ASN Aviation Safety Database > Airports > Chicago-O'Hare International Airport, IL profile". Aviation Safety Network. July 13, 2008. Archived from the original on October 7, 2010. Retrieved November 3, 2010.

bbc.co.uk

"Chicago airport train derailment injures 32". BBC News Online. Retrieved March 24, 2014.

bizjournals.com

Harden, Mark (September 30, 2014). "Frontier Airlines making Chicago's O'Hare a focus". Chicago Business Journal. Retrieved September 30, 2014.

bts.gov

transtats.bts.gov

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bts.gov

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chicago.gov

"City of Chicago :: Interjet Announces New Service Between Mexico City and Chicago". www.chicago.gov.

chicagotribune.com

Karp, Gregory. "Finnair to begin flights from O'Hare". chicagotribune.com.

cityofchicago.org

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egov.cityofchicago.org

"Ward 41" (PDF). Webportal. City of Chicago. October 2007. Retrieved December 24, 2008.^{[permanent dead link]}

departedflights.com

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flychicago.com

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"Chicago Voted Best Airport in North America" (PDF) (Press release). Chicago Department of Aviation. December 6, 2007. Archived from the original (PDF) on March 27, 2009. Retrieved July 15, 2012.
"O'Hare International Airport History". Fly Chicago.com. Archived from the original on October 17, 2013. Retrieved September 8, 2013.
"Chicago Department of Aviation - Airlines at O'Hare International Airport". Archived from the original on 2012-11-01. Retrieved 2012-11-06.
"Air Traffic Data". www.flychicago.com. Archived from the original on April 6, 2018.

gcr1.com

FAA Airport Master Record for ORD (Form 5010 PDF), effective March 15, 2007.

londonairtravel.com

"Virgin Atlantic suspends London Heathrow - Chicago O'Hare". London Air Travel. 10 December 2016.

nwchicagohistory.org

"Northwest Chicago Historical Society – O'Hare". Northwest Chicago Historical Society. Archived from the original on July 27, 2011. Retrieved July 15, 2012.

ourairports.com

"ORD routes @ OurAirports". ourairports.com. Archived from the original on 2015-05-08. Retrieved 2015-05-11.

travelandleisure.com

"America's Favorite Cities 2009". Travel + Leisure. Archived from the original on August 6, 2010. Retrieved July 15, 2012.

web.archive.org

Bhaskara, Vinay (October 1, 2014). "Spirit Airlines Adds Two New Routes at Chicago O'Hare". Airways News. Archived from the original on October 3, 2014. Retrieved October 1, 2014.
"Chicago Voted Best Airport in North America" (PDF) (Press release). Chicago Department of Aviation. December 6, 2007. Archived from the original (PDF) on March 27, 2009. Retrieved July 15, 2012.
"America's Favorite Cities 2009". Travel + Leisure. Archived from the original on August 6, 2010. Retrieved July 15, 2012.
"Chicago O'Hare International Airport, Chicago, Illinois, United States". Airport information.org. Archived from the original on March 5, 2016. Retrieved September 7, 2013.
"Northwest Chicago Historical Society – O'Hare". Northwest Chicago Historical Society. Archived from the original on July 27, 2011. Retrieved July 15, 2012.
"O'Hare International Airport History". Fly Chicago.com. Archived from the original on October 17, 2013. Retrieved September 8, 2013.
"Aviation Safety Network > ASN Aviation Safety Database > Airports > Chicago-O'Hare International Airport, IL profile". Aviation Safety Network. July 13, 2008. Archived from the original on October 7, 2010. Retrieved November 3, 2010.
"Chicago Department of Aviation - Airlines at O'Hare International Airport". Archived from the original on 2012-11-01. Retrieved 2012-11-06.
"ORD routes @ OurAirports". ourairports.com. Archived from the original on 2015-05-08. Retrieved 2015-05-11.
"Air Traffic Data". www.flychicago.com. Archived from the original on April 6, 2018.

webcitation.org

"Table 6: Ranking of Major Airport On-Time Departure Performance Year-to-date through July 2006". Bureau of Transportation Statistics. Archived from the original on March 19, 2012. Retrieved July 15, 2012.