Related Clues:

• ''Belay there!''
• Hook's ''halt!''
• Pirate's cry
• JFK posting
• Terminal abbr.
• O'Hare abbr.
• Pirate's exclamation
• Horn-blower's 'Halt!'
• 'Halt!'
• O'Hare abbreviation
• Salt's ''Halt!''
• 'Stop, sailor!'
• SFO posting
• Airline sched. datum
• JFK datum