Delta Airlines is one of the major airlines in the United States and its headquarter is located in Atlanta, Georgia. It has wide channel of network in both International and domestic areas. Other than Antarctica, Delta Air Lines offers its services to all major continents. It has nearly 80,000 employees and more than 5,000 flights are being operated by its subsidiaries. The airline stands largest on account of scheduled passengers, fleet size and kilometers passengers are flown. It is among 4 founding members of SkyTeam airline alliance. Also, this airline is the oldest service provider continuing its operations in United States presently.