City Airport ( IATA : LCY,  ICAO : EGLC) is a single-runway  airport . It principally serves the  financial district of London  and is located on a former  Docklands  site, 6  NM  (11 km; 6.9 mi) east of the  City of London , opposite the  London Regatta Centre , in the  London Borough of Newham  in east