Defect

Book: Defect
Author: Will Weaver
Audience: Teen
In a Nutshell: the boy who could fly- or at least glide

David is tall, skinny, has bug eyes and a strange face, and wears hearing aids. Predictably, he's not had an easy life, bouncing from one foster home to the next after his mother turned him over to the system. But there's more, things that not his current foster family the Crutchfields, or his case workers, or anyone at school knows. The hearing aids are actually to block out sound, because his hearing is off the charts. But his biggest secret would have to be his batlike, functional wings. He often goes to Barn Bluff outside of Red Wing and glides down on warm nighttime drafts.

When he is transferred to an alternative school, he actually makes a few friends, and even gets a girlfriend, a girl who calls herself Cheetah and who's prone to grand mal seizures.
Things are going pretty well until an accident and a trip to the hospital exposes his secret, which leads to a stay at the Mayo Clinic. He faces a choice: stay who he is, or have corrective surgery on his face and body and become handsome, earth-bound New Guy. He also befriends a young terminal cancer patient named Brandon and finds himself in a position to help with the boy's very unusual Make-a-Wish wish.

Good "outsider finds his place and comes to terms with self" story.
His relationship with his foster parents is particularly nice- they're truly kind people without being cardboard saints. I really liked this one.