The homeless are being chased from LaGuardia Airport with the use of strict closing times, window-ledge guards and traffic cones along the walls.

Port Authority workers are using every tool they have to shoo away the vagrants that have helped give the airport it’s reputation as a “Third World” facility.

Since Saturday, cops have been booting anyone without a ticket or an airport job after 11 p.m. and not letting them back until 5 a.m.

Those who slip through the cracks have to contend with rough metal posts on the window ledges and hundreds of bright orange cones lining the walls to keep bums from sleeping on the floor.

Workers estimate the homeless population has dropped by 80 percent.

“The smell. Thank God that’s gone,” said a Transportation Security Administration agent who works in the terminal. “The shop owners are happier. It was getting dangerous.”

Other airport workers also applauded the move.

“It was bad for business,” said a food-court employee.