By Paul Thurrott
While Windows networking has certainly got more sophisticated about offline conditions over time, Windows 8 introduces a handy switch called Airplane Mode that works like the same feature on various smart phone platforms. It allows you to turn off all of the PC’s radios in one fell swoop when you know you’re going to be offline for a while—as on airplane ride—and then re-enable them when you arrive at your destination.

Source: Paul Thurott's SuperSite for Windows