Making sense of those three-letter airport codes.


I often fly into CVG (Cincinnati) and wondered why those 3 letters are used as the airport code instead of CIN.  “Serving the greater Cincinnati metro area, Cincinnati/Northern Kentucky’s airport code comes from the nearby city of Covington.”  So why is Chicago ORD and Washington D.C.’s airport IAD?  Airport codes has all the answers to these sorts of questions, but the great circle mapper can help you visualize how these transportation hubs are connected and make fun maps of all your travels.    

Tags: mobility, mapping, transportation.