Callsign CCA is Air China
WHAT AIRLINE IS CCA?
CCA is the ICAO three-letter callsign prefix for Air China. When a radio scanner, flight tracker or radar scope shows a flight like CCA123 or CCA45XY overhead, that's a Air China aircraft talking to air traffic control.
Spot one yourself: open the live scope, enter your postcode, and tap any blip whose callsign starts with CCA for its type, registration, route and photo.