Delta Air Lines, is a major United States airline headquartered in Atlanta, Georgia that operates an expansive domestic and international network, spanning North America, South America, Europe, Asia, Africa, the Middle East and the Caribbean. In terms of passengers carried (approximately 119 million in 2005),Delta is the second-largest airline in the world (behind American Airlines).
The current Delta Airlines logo is a comprises of two 3-dimensional triangles representing a larger triangle with the world DELTA next to it. The logo's origins can be traced back to 1959 logo which was the first time, the design was introduced. The logo (also called the widget) was inspired by the swept-wing design of the DC-8 airplanes. The red, white and blue represented the colors of the American flag. The logo has undergone some changes over the years with the the logo being placed sideways, made softer etc, but the current logo is probably the most significant change with the introduction of the solid red color. The 3-dimensional red widget logo reflects Delta's successful transformation into a highly-differentiated, customer-focused airline
Some Historical Delta Logos