Delta Air Lines is seeking approval from the U.S. Department of Transportation for route authority in Colombia. The carrier plans for new service to Cali and Medellin from its Atlanta hub, as well as to Bogota from New York JFK. If approved, the flights will provide nonstop service. JFK-Bogota would operate daily, while Atlanta-Medellin flights would operate four times per week, and Atlanta-Cali service three times per week. Visit www.delta.com. (JM)