Related Clues:

• Due date, briefly
• Airline abbr.
• Greek 'H'
• Timetable abbreviation
• OINSHRDLU opener
• Airport sched. letters
• Seventh of 24 letters
• Coming-in approx.
• I ___ Pi (playful fraternity name)
• Terminal msg.
• Something that may be delayed by a storm: Abbr.
• Station abbr.
• Letter for Yanni
• Hellen's H
• JFK abbr.