Photographer Thomas O’Brien managed to stuff his DJI Phantom 2 Vision into a Lowepro Photo Trekker Classic backpack. He removed 2 of the 4 props, and can fit the Phantom, 4 batteries, radio, charger, Nexus 7, and a bunch of AA batteries the main compartment, leaving the front two pockets empty.
Putting the quad into a backpack is a better solution than strapping it to the outside, which is what I did the last time I went for a hike.