Will Delta place the next mega order?

Delta Air Lines could be next in line to place a large order for aircraft, reports Bloomberg News.

Delta sent bid requests to jet makers last month, airline officials told employees on an internal website. The carrier could order 100 to 200 single-aisle jets, with deliveries beginning in 2013.

This week, India’s IndiGo airlines placed a tentative order with Airbus for 180 of its A320 jets, 150 of which will be Airbus’ A320 new engine option aircraft.

Boeing has yet to announce what it plans to do with its 737, which competes against the A320. One analyst believes Boeing will launch a 737 replacement this year.

Jim Albaugh, Boeing’s president of commercial airplanes, told Bloomberg yesterday that the company is unlikely to follow in Airbus’ footsteps and come out with a new engine option on the 737.