Besides the fact that enabling Airplane Mode on your iDevice makes you compliant with airline regulations (assuming you onboard on a plane), there are a lot of other benefits in toggling this feature On when you're on land.
- if you're running out of battery juices on places where there is no network signal, you may want to turn on AP mode instead of turning off your phone. The shutting down and restarting-up of your phone could significantly eat out your battery life.
- AP mode is ideal when sleeping, the fact that you'd grab your phone as soon as you wake up to check the time would complement the AP mode, other functions of your phone are accessible except for the do not disturb privilege since the cellular network signal has been turned off via AP.
- during Syncs and Backups on the iTunes, it is highly recommended that you turn on the Airplane Mode in order to shove away interruptions. This is also helpful during update, restore and copying of files.
- Chances are, you want to get continuous access to your music, videos or ebooks without the annoyance of notifications brought by cellular data or wifi based presentments, then go ahead and turn on the AP mode and let your iPhone fly.
- my favorite, why i get to always toggle this feature-on is its ability to put your phone into a don't disturb status. No calls, no messages, no incoming alerts. A really good alternative in silencing your phone instead of the mute button esp. Do this during meetings, movie dates, going for a worship service, or during your meditative state.
The Airplane Mode isn't that much strict once and for all, you may want to turn on the Wifi in connecting to the outside world (internet) without letting yourself fall on the immediate impact of calls, text messages or alerts being brought by the cellular network.