The last time I fly, we were told to switch off our phones.
When cell phones first appeared, it was the FCC, not the FAA that demanded that they be shut off in airplanes.
This was not because it interfered with airplane electronics, but it disrupted cellular networks on the ground because the phones in an airplane would lock on to multiple towers and zoom between towers at speeds faster than the system could handle, dramatically disrupting the cell phone network for users on the ground.
Airplane mode STILL disables the cellular part of your phone. The Wi-Fi operates at much shorter range and does not extend beyond the plane. Avionics have long since been hardened against incidental radiation from cell phones.
Modern FAA research “concluded that most commercial airplanes can tolerate radio interference signals from portable electronic devices.”
Philip Remaker added comment.