With flight delays on the rise nationwide, Transportation Secretary Sean Duffy cautions that the situation may get worse the longer the government shutdown continues.

The Department of Transportation may shut down airspace in parts of the country next week if the government shutdown doesn't end, Transportation Secretary Sean Duffy said on Tuesday.

Transportation Secretary Sean Duffy warned that the ongoing government shutdown may result in the closure of portions of U.S. airspace, which he predicts will lead to "mass chaos."

Aviation Analyst Peter Goelz — who was managing director of the National Transportation Safety Board (NTSB) — gave floundering reviews to Transportation Secretary Sean Duffy’s announcement of unprecedented flight reductions to “alleviate the pressure” on air traffic controllers.

Transportation Secretary Sean Duffy said Wednesday the Federal Aviation Administration will cut flights by 10 percent at 40 high-traffic airports starting Friday due to constraints on the air traffic control workforce caused by the partial government shutdown.