London, Sept. 10 – United Airlines flight UA273 emergency diversion to London Heathrow involved a 28-year-old Boeing 767-322ER registered N664UA bound for Newark Liberty International Airport after departing Nice Côte d’Azur Airport at 13:45 CEST on a nine-hour transatlantic crossing. The widebody United Airlines Boeing 767 reached a cruising altitude of 32,000 feet over mainland France before pilots altered course over the English Channel and transmitted general emergency code squawk 7700 to alert air traffic control of an urgent in-flight incident requiring priority handling.
Controllers immediately prioritized the United Airlines Newark flight for an emergency landing at London Heathrow Airport, where fire and rescue teams stood ready as the Boeing 767-322ER began a rapid descent and aligned for runway 27L. Flight tracking confirmed the aircraft completed a safe touchdown on runway 27L at 15:03 BST before taxiing to a remote stand at 15:14 BST, while airport operations were adjusted to accommodate the unexpected arrival of the diverted widebody jet.
United Airlines has not publicly specified whether the in-flight emergency on the aging Boeing 767 stemmed from a technical malfunction or a medical event aboard the Nice to Newark service. The successful London Heathrow diversion of United flight UA273 underscores established transatlantic emergency procedures that allow crews to reach a major international airport with full ground support rather than continue across the Atlantic.
This United Airlines Boeing 767 emergency landing at London Heathrow remains under review as investigators examine the 28-year-old aircraft and operational data from the aborted Newark-bound flight. Passengers and crew disembarked safely after the priority arrival, and further official statements from the airline and aviation authorities are expected to clarify the precise cause of the in-flight declaration that prompted the course change over the English Channel.