Crossword clues for Sched. letters 3 lettersAnswerClueDEPAirport sched. lettersTBAIffy sched. lettersTBATV sched. lettersETDAirport sched. lettersTBASched. lettersETABus sched. lettersETASched. lettersTBASched. gap lettersTBASched. uncertainty lettersTBALetters in an unfilled sched. slotTBALetters on an unfinished sched.