In a highly intriguing development, Condor has revealed that it will fly from Frankfurt Airport (FRA), which is the leisure carrier's most-served airport, to Chicago O'Hare International Airport (ORD). While everyone knows that Hartsfield-Jackson Atlanta International Airport (ATL) is the world's busiest airport for passengers, ORD is comfortably number one for the number of flights. Condor From FRA To ORDCredit: ShutterstockCondor will take off from FRA to ORD on May 14, 2027. The following schedule means that only one frame will be required to serve ORD daily. ORD flights will rely on connections.