A pilot has shared what really happens when our phones aren't switched to airplane mode during a flight.

"The airplane mode button on your phone is not a conspiracy," he said in the video. He explained that on a recent flight, he heard radio interference in his headset, likely from a cell phone ...

"It is always good for passengers to keep their phones on airplane mode until the plane has landed," a former pilot told Newsweek.

"The airplane mode button on your phone is not a ... that even if three or four phones attempt to make a connection to a radio tower for an incoming call, the device will send out radio waves.