CHA stands for Chattanooga Lovell Field Airport, while EDI stands for Edinburgh Turnhouse Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. Glasgow Intl Airport (GLA), Aberdeen Dyce Airport (ABZ), Inverness Airport (INV), Glasgow Prestwick Airport (PIK), Dundee Airport (DND) are some additional IATA codes for airports related to your trip.