Related Clues:

• LAX data
• They may change during flights: Abbr
• The Times' expected letters from Greece
• Some alphabet enders
• JFK guesstimates
• Cockpit announcements
• Timetable guesses: Abbr
• Greek H's and Latin A's
• N N N, to Greeks
• Laconian letters
• Letters to get fuel supplied to 'ouse
• Letters from louse unopened
• SFO guesstimates
• Letters becoming hilarious after 'love, yours truly'
• Expected landing hrs