Airplane mode, also sometimes referred to as flight mode, can be used to quickly disable cellular service, Wi-Fi and Bluetooth connectivity while flying.
1.
From the Home screen, swipe up to view your apps.
2.
Tap Settings
3.
Tap Wi-Fi & internet.
4.
Tap or slide the Airplane mode switch to ON.
You can also turn airplane mode on and off through the Notification panel.