Answer: Delta Air Lines
Delta Air Lines, Inc. is a United States airline based and headquartered in Atlanta, Georgia. It is the world's largest airline in terms of passenger traffic and fleet size. Delta operates an extensive domestic and international network, spanning North America, South America, Europe, Asia, Africa, the Middle East, the Caribbean, and Australia. Delta began service to Sydney, Australia from Los Angeles in July 2009, which at the time made it the only current American carrier to serve every continent except Antarctica (United Airlines will join them in mid-2010). Delta and its subsidiaries fly to over 375 destinations in 88 countries (excluding codeshare), across six continents. As of November 2009, Delta is the only major U.S. carrier that flies to Africa.
