Use Wi-Fi and Bluetooth in Airplane Mode

If the airline allows it, you can use Wi-Fi and Bluetooth while in Airplane mode. You just need to turn them on separately. To turn on Wi-Fi when you're in Airplane Mode, go to Settings > Wi-Fi, and choose a network. To turn on Bluetooth, go to Settings > Bluetooth, and select an accessory. 

You can also turn on Wi-Fi or Bluetooth from the Control Center. Swipe up from your Home Screen and tap  or.

When you turn on Wi-Fi or Bluetooth while in Airplane Mode, you might be able to use a limited set of Location Services.