Houston airports ✈️ become home base for humanitarian flights

United Airlines, Southwest Airlines, Spirit Airlines and American Airlines each say they've airlifted supplies into or people out of the city since Hurricane Harvey hit on Friday.

Those restrictions cover 1,200 square nautical miles over the city and are intended to keep airspace clear for search and rescue flights, the FAA said.

United said it would fly two 777 jets loaded with water, blankets and donated amenity kits to Houston from Chicago's O'Hare International Airport on Tuesday.

American flew a 757 with supplies to Houston from Dallas late Monday, although it said the items on board were "for their team members."

While far from the busiest air travel holiday in the US, an industry group had projected that 16.1 million people would travel in the week around Labor Day.

UCJ, UNILORIN.