Related Clues:

• Itinerary letters
• Elasticity symbol, in economics
• Capt.'s announcement
• Touchdown abbr.
• Travel sched. notation
• Capt.'s estimate
• Flight-board abbr.
• Sched. number
• Logan abbr.
• H, in a fraternity
• Socratic vowel
• Approx. takeoff hour
• Seventh in a series of 24
• 78 Across stat.
• Plane takeoff guess: Abbr.