The control tower at Ronald Reagan Washington National Airport, with the Washington Monument in the background in Washington, DC, U.S., October 31, 2025. REUTERS/Annabelle Gordon

By David Shepardson

WASHINGTON (Reuters) -Operations resumed at Reagan Washington National Airport on Tuesday after a brief halt due to a bomb threat against a United Airlines plane.

The FBI said it had responded to the report and found nothing hazardous.

The U.S. Federal Aviation Administration said operations resumed around 1 p.m. ET after a ground stop at the airport that lasted for about an hour.

United said Flight 512 -- a Boeing 737 MAX 8 with 95 passengers and crew that had departed Houston -- had landed without incident.

After passengers deplaned, the aircraft was moved away from the terminal while authorities investigated.

More than 300 flights, or 37% of traffic, were delayed at Reagan Airport, according to FlightAware, a flight tracking site. There have been significant flight delays in the U.S. over the last month due to a government shutdown and air traffic control absences.

Reagan Airport is just five miles from the White House and U.S. Capitol and the FAA imposes special security restrictions around the airspace.

(Reporting by David Shepardson in Washington; additional reporting by Rajesh Kumar Singh in Chicago; Editing by Nia Williams and Rosalba O'Brien)