Delta Air Lines is a carrier.
In 2013 , Delta Air Lines was the world 's largest airline in terms of scheduled passengers carried -LRB- 120.6 million -RRB- , and the second-largest in terms of both revenue passenger-kilometers flown -LRB- 277.6 billion -RRB- and capacity -LRB- 4.4 billion ASM/week ; March 2013 -RRB- .	airline	airline	ASM	Available seat miles
