Thank you for your thoughtful reply. I am interpreting from paragraph three, that because: ORD 2017 January revenue passengers are 4,501,484, that all 4.5M passengers originate from Chicago and must be screened by TSA. Please confirm or correct the interpretation. Any reference to support...
ORD reporting shows 2017 January revenue passenger as 4,501,484:
https://www.flychicago.com/SiteCollectionDocuments/Business/FactAndFigures/AirTraffic/0117 ORD SUMMARY.pdf
Is this number calculated by summing all revenue passengers on arriving flights and all revenue passengers on departing...