Early Friday evening, there had been 91 delays at BWI and 22 cancellations, according to flight tracking and aviation data company FlightAware. Dulles had 76 delays and 22 cancellations. Ronald Reagan had 323 delays and 138 cancellations.

The Federal Aviation Administration plans to cut flights by 10 percent at 40 airports—including Reagan National, Dulles, and BWI—starting Nov. 7 if the government shutdown continues. The move aims to ease strain on unpaid air traffic controllers but is expected to cause widespread delays and cancellations in the Washington area and nationwide.

Washington state Rep. Dan Newhouse plans to visit the Tri-Cities Airport Thursday to learn more about the impacts of the government shutdown on the airport.

Looking ahead, the best advice I can share for flyers or those picking up is to stay abreast of the specific status of their flights using their airline’s app or website,” said a Norfolk

Air traffic control audio shows the communication between the tower and pilots during the bomb threat. The ground stop contributed to flight delays.