A United Airlines flight headed to Washington Dulles International Airport in Dulles, Virginia, from San Francisco International Airport rerouted back to SFO on Wednesday morning because of an unspecified maintenance issue, a spokesperson for the airport said.
United Flight 408 returned to SFO and landed around 8:30 a.m., according to airport spokesperson Doug Yakel. The Boeing 777 had a scheduled departure of 7:30 a.m.
Information about the number of passengers and crew on board was not immediately available.
As of 9:15 a.m. the plane was still at the gate, and Yakel had no estimate for when the flight would get back in the air.
United Airlines officials were not immediately available for comment.