These are the ones that I remember, but I'm sure I've been to more.

• Chicago O'Hare
• Philadelphia
• Washington Dulles
• Reno-Tahoe
• Sacramento
• Columbus
• Boston
• Manchester
• Houston
• San Francisco
• London Heathrow
• Amsterdam
• Berlin Tegel
• Orlando
• Newark
• Washington Reagan
• New York LaGuardia
• Cleveland