BOAC Flight 777 is shot down over the Bay of Biscay by German Junkers Ju 88s, killing British actor Leslie Howard and leading to speculation that it was actually an attempt to kill British Prime Minister Winston Churchill.

BOAC Flight 777 was a KLM flight scheduled as a British Overseas Airways Corporation civilian airline flight from Portela Airport in Lisbon, Portugal, to Whitchurch Airport near Bristol, England. On 1 June 1943, the Douglas DC-3 serving the flight was attacked by eight German Junkers Ju 88 heavy fighter planes and crashed into the Bay of Biscay, killing all 17 on board. There were several notable passengers, among them actor Leslie Howard.