Possible Clues:

• JFK and Charles de Gaulle, say
• Pearson and O'Hare, say
• Flight depots
• Flight termini
• Dry fortified wines for those in lounges preparing to take flight
• JFK, Charles de Gaulle etc.
• Flight transport depots
• Is shown on television consuming wine designed specifically for high-flyers
• Where one might find holidaymakers bearing drinks
• Places for gates