TikTok user Cierra_mistt, who works as a flight attendant, posted a video to explain why passengers are asked to put their phones on airplane mode – and it’s been viewed more than 1.8 million timesTikTok user Cierra_mistt, who works as a flight attendant, posted a video to explain why passengers are asked to put their phones on airplane mode – and it’s been viewed more than 1.8 million times