Gulf Coast Reads -- The Dog Stars by Peter Heller
Summary: Hig survived the flu pandemic that killed everyone he knows. His wife is gone, his friends are dead, and he lives in the hangar of a small abandoned airport with his dog, his only neighbor a gun-toting misanthrope. In his 1956 Cessna, Hig flies the perimeter of the airfield and sneaks off to the mountains to fish and to pretend that things are the way they used to be. But when a random transmission somehow beams through his radio, the voice ignites a hope deep inside him that a better life, something like his old life, exists beyond the airport.