Delta Air Lines (DL). Based in USA.
Delta is the world's second-largest airline in terms of passengers carried and the leading U.S. carrier across the Atlantic, offering daily flights to 492 destinations in 89 countries on Delta, Song®, Delta Shuttle®, the Delta Connection® carriers, and it's worldwide partners.
Delta is a Delaware corporation headquartered in Atlanta, Georgia. Major hubs are in Atlanta, Cincinnati and
Salt Lake City. Delta is a member of the Skyteam alliance.
Delta employs 47.000 people, operates a total of 680 aircraft and carried 119 million passengers in 2005
Source: delta.com.