Ever wonder why you're asked to switch your phone to airplane mode during a flight? The main reason isn't that your phone will bring the plane down—it's more about avoiding interference. While aviation experts agree that phones won't disrupt critical aircraft systems, pilots say the radio waves from cell phones can interfere with cockpit headsets. This interference, especially during takeoff and landing, can make communication with air traffic control less clear—like hearing a mosquito buzz in your ear. The Federal Aviation Administration (FAA) still requires airplane mode, following older rules from the Federal Communications Commission (FCC), which banned cell phone use in 1991. Though technology has advanced, the FAA hasn't updated its policy since 2017. Meanwhile, European airlines now allow in-flight texting and calls thanks to special onboard equipment that doesn't interfere with aircraft systems. In the US, ignoring the rule won't land you in jail, but you could be fined or removed from a flight. Ultimately, switching to airplane mode helps prevent unnecessary distractions and keeps communication lines clear for pilots. Plus, it saves battery—and gives you a chance to unplug.