'Airplane Mode' when enabled protects cell coverage for people on the ground, not the airplane's communications.
  • I mentioned this in my Starlink SN post this week.
  • Our phones have to constantly ping back to earth, and having hundreds of devices do this along the entire flightpath, constantly pinging tower to tower, would disrupt cell coverage for many of those on the ground.
  • Given the speed that a plane travels, and the number of cell towers and channels on the ground, your phone as well as everyone elses would otherwise confuse networks as it tries to connect to each tower it passes.