British Airways flight BA295 experiences a mid-air emergency about five hours after departing London Heathrow and is forced to turn back and make an emergency landing back in London. Reports say the incident occurs while the aircraft is en route to Chicago O’Hare, shortly after takeoff the flight is underway but does not reach its destination.

Multiple outlets report the cause involves sudden, severe turbulence. During the turbulence, oxygen masks are deployed inside the cabin, an action that indicates passengers may be exposed to low cabin oxygen or smoke-like conditions, though the reports provided focus mainly on the turbulence and mask deployment rather than a confirmed underlying cause. The plane reportedly “plunges” to around 28,000 feet amid the rough air, prompting emergency procedures and an oxygen drop.

Across the coverage, the core details are consistent: BA295 is diverted, turbulence is the trigger described, and oxygen masks are deployed inside the cabin. Differences are limited to wording—such as how outlets describe the plunge and the urgency—but all describe an emergency return and landing tied to the same in-flight event.