Canceled flights total 1,289 for Sunday. Transportation Secretary Sean Duffy warns air travel ahead of Thanksgiving could be “reduced to a trickle.”

American Airlines said that the 4% reduction will mean 220 canceled flights per day. The vast majority of impacted American Airlines flights are regional, and there’ll be no impact to international flights including Mexico, Canada and the Caribbean, CEO David Seymour said in a letter to employees. Further hub-to-hub routes impact will be minimized.

Edward Segal, an expert in crisis management and the author of "The Crisis Casebook" says the FAA's decision to cancel flights is the best way to manage and avoid a crisis. He sits down with FOX LOCAL's Eric Perry for a full discussion on what he says the positives are.

The Federal Aviation Administration grounded all McDonnell Douglas MD-11 aircraft on concerns the engines and its structural wing components could fail as investigations continue into the deadly United Parcel Service Inc.

Travelers can expect to see fewer flights to many major U.S. cities starting Friday morning. That's when the Federal Aviation Administration says it will reduce traffic across 40 airports to ease the load on the nation’s air traffic controllers.

Blue Origin says it is working with the government to secure additional launch opportunities for the upcoming New Glenn launch of a NASA Mars mission.

McGhee Tyson, the fastest-growing major airport in the United States last year, is not on the FAA's list of airports that will reduce flights. However, that doesn't mean Knoxville passengers are immune to the increasing flight cancellations.

The ongoing shutdown means that air traffic controllers at Denver International Airport have been working without pay, with many taking second jobs to try to make ends meet. Now, Colorado lawmakers are pushing for the Federal Aviation Administration to approve the airport's emergency waiver that would allow its air traffic controllers to be paid during the shutdown.