Delta Air Lines provides transport services.
An airline is a company that provides air transport services for traveling passengers and freight . Delta Air Lines . The company moved to Monroe , Louisiana , and was later renamed Delta Air Services , in reference to the nearby Mississippi Delta region , and commenced passenger services on June 17 , 1929 . In 2013 , Delta Air Lines was the world 's largest airline in terms of scheduled passengers carried ( 120.6 million ) , and the second-largest in terms of both revenue passenger-kilometers flown ( 277.6 billion ) and capacity ( 4.4 billion ASM/week ; March 2013 ) .