Related Clues:

• Entry control
• Formal entrance
• Ticket-sales total
• Event proceeds
• Guess announced by a pilot: Abbr.
• Flight stat
• Cockpit guess, for short
• H, as in Hippocrates
• SFO approx.
• Greek letter that rhymes with three other Greek letters
• LAX landing approximation
• Sea-Tac datum
• H in an agora
• Passenger pickup info
• It's numbered at the airport