ADA - Aerolínea de Antioquia (Medellín Enrique Olaya Herrera) is planning to introduce three ex-VIP - Vuelos Internos Privados (Quito Mariscal Sucre (Old)) and ex-PSA Airlines (OH, Dayton James M. Cox) Do328-100s to its fleet to increase domestic services from Medellín Enrique Olaya Herrera. It currently operates Jetstream 31s and DHC-6s on routes to 18 regional destinations.