Flights were diverted and others grounded throughout the Midwest after a temporary outage at a Minnesota air traffic control facility caused issues, the FAA said.
The latest report by Chicago's inspector general found several infractions, including city employees drinking on the job and falsifying work hours.
Nearly 10% or 2,700 TSA officers across the country called in sick Tuesday, according to TSA data first obtained by ABC News.
African Americans continue to be instrumental in helping to shape the world of aviation in Chicago and across the nation.
More than 2,300 flights within, into or out of the U.S. scheduled for Saturday have now been canceled ahead of the storm, with Dallas' two airports hit the hardest.
UPS Airlines says a fleet of planes grounded after a deadly crash is expected to miss the peak holiday season due to inspections and possible repairs.