Airlines are canceling hundreds of flights to comply with the FAA's order. But there are still questions about the plan, which the agency says will keep the skies safe during the government shutdown.

The Federal Aviation Administration (FAA) issued a ground delay program at Newark Liberty International Airport (EWR) on Sunday morning, due to reported staffing shortages.

Some experts say there is a solution that could change the dynamic in relatively short order — either privatize air traffic control, or set up a separate government corporation that can run the system.

The Federal Aviation Administration will reduce air traffic at many busy airports to maintain safety during the government shutdown, which has led to staffing shortages of air traffic controllers.

The Federal Aviation Administration issued a temporary ground stop for incoming flights to BNA due to the shortage around 2:30 p.m. on Nov. 8.

Both Houston's George Bush Intercontinental (IAH) and Hobby Airport (HOU) are on the FAA's list of 40 "high-volume" airports expected to face delays and flight cancellations starting Friday. The move comes as the shutdown—now the longest in U.S. history—has left t housands of air traffic controllers working without pay.

The Federal Aviation Administration announced Wednesday it will cut air traffic by 10% across 40 high-volume markets starting Friday morning, citing safety concerns as air traffic controllers show signs of strain during the ongoing government shutdown.

The New York City area’s highest-volume airports, including JFK, LaGuardia and Newark, are among those set to be affected by 10% air traffic cuts that the FAA is poised to impose amid the ongoing, and longest-ever,