Do you really nees to switch your phone to airplane mode during a flight?! When you activate airplane mode, or flight mode, on your phone, it turns off wireless and cellular signals to prevent interference with aircraft systems, as recommended by the FAA. In this mode, you can still manually enable Wi-Fi and Bluetooth if your plane and airline allow it. If you don't use airplane mode, your phone's radio transmissions could interfere with the plane's communication and navigation, especially durin