Delta Air Lines, Inc. is a United States airline based and headquartered in Atlanta, Georgia. 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 made it the only current American carrier to serve every continent except Antarctica. Delta and its subsidiaries fly to over 375 destinations in 88 countries (excluding codeshare), across 6 continents.