02:38 PM EST, 11/04/2025 (MT Newswires) -- (Update with United Airline's comment in the last paragraph.)

Reagan Washington National Airport said Tuesday on X that its main runway reopened at 12:50 p.m., and flights are resuming.

"United Airlines (UAL) flight 512 landed at Reagan National Airport around 11:30 a.m. and then stopped on an adjacent runway away from the terminal in response to a security threat," the airport said. "Airport runways remained closed until passengers were safely offloaded and bused to the terminal."

People meeting passengers or flying this afternoon should expect to encounter delays, the airport said.

"United flight 512 landed safely after a potential security concern," a United spokesperson said in an email to MT Newswires. "Customers deplaned via airstairs and were bused to the terminal. Law enforcement officials searched and cleared the aircraft and it has since taxied to the gate."

Price: 90.92, Change: -5.19, Percent Change: -5.41