For those with a trip planned in the coming days, it's best to brace for possible longer wait times at airports as flight cancellations are expected.

U.S. airlines canceled more than 2,700 flights on Sunday as Transportation Secretary Sean Duffy warned that air traffic across the nation would “slow to a trickle” if the federal government shutdown lingered into the busy Thanksgiving travel holiday season.

As the federal government shutdown continues, the FAA and the nation's air traffic control system are being increasingly affected, leading to delays at major airports across the U.S. Federal air traffic controllers and Transportation Security ...