British Airways flight BA99 to Toronto is returning to London due to a technical issue

British Airways Flight BA99 Returns to London Following Mid-Air Technical Issue

London, Sept. 4, 2025 — A British Airways flight bound for Toronto was forced to make a precautionary return to London Heathrow Airport on Wednesday evening after the crew reported a technical problem involving the aircraft’s oxygen system. Flight BA99, operated by a Boeing 777-200, departed Heathrow at 6:38 p.m. local time on September 3, more than an hour behind its scheduled departure of 5:15 p.m. The service was en route to Toronto Pearson I…

British Airways Flight BA99 Returns to London Due to Technical Issue

London, September 4 - British Airways flight BA99, on September 3, 2025, a Boeing 777-200ER bound for Toronto Pearson International Airport, was forced to return to London Heathrow Airport after encountering a technical issue mid-flight. The aircraft, registered as G-YMMJ and nearly 25 years old, departed from Heathrow’s Terminal 5, Gate 10C, at approximately 6:38 PM local time, over an hour later than its scheduled 5:15 PM departure. While clim…

British Airways flight BA99 to Toronto is returning to London due to a technical issue

A 24-year-old Boeing 777 to Canada is returning to Heathrow. The British Airways flight BA99 to Toronto, Canada departed London Heathrow terminal 5 , gate 10C at 6:00 PM BST. The Boeing 777-300ER (registration G-YMMJ) stopped the climb at 15,000 feet due to oxygen problem according to Flight Emergency source. Pilots decided to turn around over Wales to return to London Heathrow Airport. The airline is confirming AIRLIVE that the flight is now de…