MLT Vacations is a wholly-owned subsidiary of Delta Air Lines that provides vacation packages worldwide, including Europe, Asia, Latin America, Africa and the US. MLT is the provider of packages and travel arrangements for several airline vacation package brands, including Delta Vacations, United Vacations, Alitalia Vacations, Air France Holidays and Aeromexico Vacations, as well as its own brand Worry-Free Vacations. The company now offers 3,500 properties worldwide.