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.

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.

It's still unclear whether travel insurance policies will cover these disruptions, especially for flights booked after the shutdown began.

Air travelers at San Diego International Airport are advised to check their flight status before arriving due to potential flight disruptions caused by the FAA’s order to reduce flights up

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