Which airport has changed its name more often: Newark Liberty International Airport or East Texas Regional Airport?
Newark Liberty International Airport: Newark Liberty International Airport (IATA: EWR, ICAO: KEWR, FAA LID: EWR) , originally Newark Metropolitan Airport and later Newark International Airport, is the primary airport serving the U.S. state of New Jersey. East Texas Regional Airport:  Its IATA identifier "GGG" comes from its prior name, Gregg County Airport.
Newark Liberty International Airport