Terminal C, the 300,000-square-foot (28,000 m²), designed by William Nicholas Bodouva + Associates Architects and Planners, was opened September 12, 1992, at a cost of $250 million.
Along with Terminal D, it functions as the hub for Delta Air Lines.
The original tenant was intended to be Eastern Air Lines, but when Eastern was forcibly bankrupt in an effort by parent Texas Air Corporation to merge its assets with that of sister airline Continental, Continental assumed the leases.
Continental never moved in, as it sold its leases and most of its LaGuardia slots to US Airways as part of Continental's bankruptcy restructuring.
Trump Shuttle, successor to the Eastern Shuttle, also occupied the terminal before becoming part of US Airways.
The Port Authority of New York and New Jersey says that the terminal handles approximately 50% of regional airliner traffic at LaGuardia.

As a result of a slot-swap deal between Delta and US Airways, as of July 2012, Delta occupies the majority of the terminal (gates C15–C44).
American (the former US Airways flights) operated some flights from gates C35–C44 until December 9, 2017.
Gates C11-C14 on the east side of the lower level do not have jet bridges and are for Delta Connection flights parked at remote stands on the east side of the terminal.
Passengers use air stairs to board/deplane these flights.
Gates C15-C24 are currently closed due to construction of a new concourse.

As of December 9, 2017, Delta, Delta Connection, Frontier, Spirit, and WestJet operate out of Terminal C using gates C26, C28-C32, C37, C39, C41-C42.
Terminal C, the 300,000-square-foot (28,000 m²), designed by William Nicholas Bodouva + Associates Architects and Planners, was opened September 12, 1992, at a cost of $250 million. Along with Terminal D, it functions as the hub for Delta Air Lines. The original tenant was intended to be Eastern Air Lines, but when Eastern was forcibly bankrupt in an effort by parent Texas Air Corporation to merge its assets with that of sister airline Continental, Continental assumed the leases. Continental never moved in, as it sold its leases and most of its LaGuardia slots to US Airways as part of Continental's bankruptcy restructuring. Trump Shuttle, successor to the Eastern Shuttle, also occupied the terminal before becoming part of US Airways. The Port Authority of New York and New Jersey says that the terminal handles approximately 50% of regional airliner traffic at LaGuardia.
As a result of a slot-swap deal between Delta and US Airways, as of July 2012, Delta occupies the majority of the terminal (gates C15–C44). American (the former US Airways flights) operated some flights from gates C35–C44 until December 9, 2017. Gates C11-C14 on the east side of the lower level do not have jet bridges and are for Delta Connection flights parked at remote stands on the east side of the terminal. Passengers use air stairs to board/deplane these flights. Gates C15-C24 are currently closed due to construction of a new concourse.
As of December 9, 2017, Delta, Delta Connection, Frontier, Spirit, and WestJet operate out of Terminal C using gates C26, C28-C32, C37, C39, C41-C42.
LaGuardia Airport