Related Clues:

• O'Hare stat
• Airport flight info: Abbr.
• Letter from Greece?
• Airport announcement
• Flying letters
• SFO posting
• Socratic "H"
• Part of a GP's schedule
• Socratic H
• JFK datum
• Aristotle's H
• 11-Across posting
• In-flight info: Abbr.
• Airport info.
• Expected taking-off hr.