Delta was the first airline to return, to be followed Friday by United Airlines and later by other carriers, officials said. The city’s main airport reopened to commercial flights for the first time since the hurricane. Some streets were cleared of fallen trees and debris, and a few corner stores reopened. Utility crews also restored electricity to several hospitals in Jefferson Parish and near Baton Rouge. The power was back on before dawn in some downtown neighborhoods. New Orleans fared better than many other places because it was protected from catastrophic flooding by the levee system that was revamped after Hurricane Katrina. Eleven people in New York City drowned in basement apartments. Meanwhile, the remnants of the system walloped parts of the Northeast, dumping record-breaking rain in a region that had not expected a serious blow and killing at least 46 people from Maryland to Connecticut. NEW ORLEANS (AP) - Commercial flights resumed in New Orleans and power returned to parts of the business district Thursday, four days after Hurricane Ida slammed into the Gulf Coast, but electricity, drinking water and fuel remained scarce across much of a sweltering Louisiana.