Delta Air Lines, Inc. (NYSE: DAL) is a United States airline based and headquartered in Atlanta, Georgia. Delta operates an expansive domestic and international network, spanning North America, South America, Europe, Asia, Africa, the Middle East and the Caribbean. Delta has plans to initiate service to Sydney, Australia in July 2009, which will make it the only current American carrier to serve every continent, excluding Antarctica. Delta and its subsidiaries fly to over 375 destinations in 88 countries (excluding codeshare), across 5 continents. Delta is the only major U.S. carrier that flies to Africa.

Delta operates its largest hub at Hartsfield-Jackson Atlanta International Airport. Delta also maintains hubs at Cincinnati/Northern Kentucky International Airport, John F. Kennedy International Airport in New York City, and Salt Lake City International Airport.

Delta's Atlanta hub is the busiest airline hub in the world. Delta carries more passengers across the Atlantic than any other carrier worldwide. Its major transatlantic gateways are Atlanta, Cincinnati, and New York-JFK.Fact: date=December 2008 Transatlantic service from Salt Lake City to Paris started in 2008, service from Pittsburgh to Paris will start in 2009, and service from Raleigh/Durham to Paris will start in 2010. Its major Latin American gateway is Atlanta.Fact: date=December 2008

On October 29, 2008, Delta closed its merger with Northwest Airlines to form the world's largest commercial carrier. In February 2009, the airline began consolidating gates and ticket counters at airports where both Delta and Northwest operate. The consolidation will be completed by early 2010.

The company

Airline operations

• Delta, the "mainline" component of Delta Air Lines, Inc., - serves primarily high-volume domestic flights and long-haul international services.
• Northwest Airlines -1 Delta merged with NWA in April of 2008 forming the worlds largest airline.
• Comair a regional component of Delta Air Lines, Inc., - serves primarily domestic short-haul, low-density, high frequency flights.
• Mesaba Airlines - regional component of Northwest acquired in the buyout.
• Compass Airlines - regional component of Northwest acquired in the buyout.
• Midwest Airlines - airline 47% owned by Northwest acquired in the buyout

Aviation business related operations, divisions, and subsidiaries

• Comair, Inc.

Sky West Airlines

• Comair Holdings, LLC
• Comair Services, Inc.
• Crown Rooms, Inc.
• DAL Aircraft Trading, Inc.
• DAL Global Services, LLC
• DAL Moscow, Inc., a 50/50 partnership with Aeroflot
• Delta AirElite Business Jets, Inc.
• Delta Benefits Management, Inc.
• Delta Cargo, Delta's air freight division.
• Delta Connection, a marketing brand given to flights operated by certain regional airlines on short- to mid-haul, low- to mid-volume routes, "connecting" hubs to airports where the larger "mainline" planes would either have a hard time accessing, go unfilled or too infrequently to be profitable.
• Delta Connection Academy, Inc.
• Delta Corporate Identity, Inc.
• Delta DASH, Delta's same-day small package delivery service, part of Delta Cargo.
• Delta Loyalty Management Services, LLC
• Delta Shuttle, which operates high frequency, short-haul service using McDonnell Douglas MD-88s configured with a single-class cabin. The flights operate between LaGuardia Airport and Logan International Airport; and between LaGuardia Airport and Ronald Reagan Washington National Airport. Delta Shuttle operates with the same operating certificate, callsign, IATA, and ICAO codes as Delta Air Lines, Inc., unlike Delta Connection branded sub-fleets flown by other certificated regional airlines.
• Delta Technology, LLC
• Delta Ventures III, LLC
• Epsilon Trading, Inc.
• Kappa Capital Management, Inc.
• Northwest Airlines, an airline based in Minnesota merged with Delta to create the world's largest airline. It operates routes in North America, Asia, and Europe. Merger closed on October 29, 2008.
• Regional Handling Services, a new subsidiary that will ground handle aircraft for Comair, Compass Airlines, and Mesaba Airlines.