CHICAGO: ORD & MDW discussion

[Octavian]

through november from ACI (cut and paste from wikipedia). It's ugly but the information is there.

1. Hartsfield-Jackson Atlanta International Airport Atlanta, Georgia, United States ATL/KATL 81,063,638 ▬ ▼2.0% 2. London Heathrow Airport Hillingdon, Greater London, England, United Kingdom LHR/EGLL 60,708,301 ▲1 ▼1.7% 3. Beijing Capital International Airport Chaoyang, Beijing, China PEK/ZBAA 59,979,434 ▲5 ▲17.2% 4. O'Hare International Airport Chicago, Illinois, United States ORD/KORD 59,373,194 ▼2 ▼9.4% 5. Tokyo International Airport Ōta, Tokyo, Japan HND/RJTT 57,031,440 ▼1 ▼7.5% 6. Paris Charles de Gaulle Airport Roissy-en-France, Val d'Oise, Île-de-France, France CDG/LFPG 53,459,723 ▼1 ▼5.1% 7. Los Angeles International Airport Los Angeles, California, United States LAX/KLAX 51,691,807 ▼1 ▼6.3% 8. Dallas-Fort Worth International Airport Dallas/Fort Worth, Texas, United States DFW/KDFW 51,425,817 ▼1 ▼2.0% 9. Frankfurt Airport Flughafen (Frankfurt am Main), Frankfurt, Hesse, Germany FRA/EDDF 47,088,077 ▬ ▼5.3% 10. Denver International Airport Denver, Colorado, United States DEN/KDEN 46,164,063 ▬ ▼2.1% 11. Madrid-Barajas Airport Madrid, Comunidad de Madrid, Spain MAD/LEMD 44,523,901 ▬ ▼5.8% 12. Hong Kong International Airport Chek Lap Kok, Lantau Island, New Territories, Hong Kong HKG/VHHH 41,428,500 ▬ ▼5.6% 13. John F. Kennedy International Airport Queens, New York City, New York, United States JFK/KJFK 41,326,599 ▬ ▼6.1% 14. Amsterdam Airport Schiphol Haarlemmermeer, North Holland, Netherlands AMS/EHAM 40,463,288 ▬ ▼8.6% 15. McCarran International Airport Las Vegas, Nevada, United States LAS/KLAS 37,357,928 ▬ ▼8.7% 16. Dubai International Airport Garhoud, Dubai, United Arab Emirates DXB/OMDB 37,085,392 ▲4 ▲8.7% 17. George Bush Intercontinental Airport Houston, Texas, United States IAH/KIAH 36,502,345 ▼1 ▼4.7% 18. Suvarnabhumi Airport Racha Thewa, Bang Phli, Samut Prakan, Greater Bangkok, Thailand BKK/VTBS 36,415,935 ▬ ▲0.5% 19. Phoenix Sky Harbor International Airport Phoenix, Arizona, United States PHX/KPHX 34,586,265 ▼2 ▼5.8% 20. San Francisco International Airport San Mateo County, California, United States SFO/KSFO 34,302,399 ▲1 ▼0.0%