Any better ones than these? Add away:

Detroit - Detoilet
Minneapolis - Minnie-Hopeless //// Minne- noplace
LaGuardia - LaGarbage
Newark - Manuark /// Sewark
O'Hare - O'Scare
Midway - Skidway
Memphis - Memphysema
Atlanta - Mylanta /// Hotlanta
Gatwick - Catlick
Los Angeles - Smell-A
Dallas/Fort Worth - Dallas/Fort Worthless /// Dee Doub (D-W)
Dallas/Fort Worth - D F'in W
Tampa - Dumpa
New Orleans - The Big Sleazy
Nashville - Trash Fill /// Bananna (airport identifier is BNA)
Pittsburgh - The Pits /// ****sburgh
Las Vegas - Lost Wages
Saskatoon - Sassy Tuna
Fort Walton Beach - Wally World
Charleston - Charley west (west virginia) Charley South (South Carolina)
Augusta - Disgusta
Chattanooga - Chat a vegas