The term FLIGHT DATA: ABBR. is an abbreviation for Flight Data, which is a collection of information related to the operation of aircraft. The two crossword solutions for this term are ETAS (4 letters) and ETDS (4 letters). ETAS stands for Estimated Time of Arrival, which is the estimated time that an aircraft will arrive at its destination. ETDS stands for Estimated Time of Departure, which is the estimated time that an aircraft will depart from its origin. Both ETAS and ETDS are important pieces of information used in the operation of aircraft.