Port Columbus is primarily a passenger airport. It provides 140 non-stop flights to 34 airports via 6 airlines daily. Traffic reached 6,355,974 passengers in 2014, a 2.1% increase over the previous year.
According to a 2005 market survey, Port Columbus attracts about 50% of its passengers from outside of its 60-mile (97km) radius primary service region. In addition, the airport also handles freight and US mail, with 10,411,920 units of freight and 8,537,279 units of mail passing through in 2006.
After having been for centuries the heart of the Empire, from the 3rd century the government and the cultural center began to move eastward: first the Edict of Caracalla in 212 AD extended Roman citizenship to all free men within the imperial boundaries, then during Constantine's reign (306–337) the seat of the Empire was moved to Constantinople in 330 AD.