It's definitly possible to fly without beeing able to see.
You'll just need some special equipment in your plane, similar to what these two guys use:
"Two blind pilots were both wearing dark glasses. One is using a guide dog and the other is tapping his way with a cane.
Nervous laughter spreads through the cabin, but the men enter the cockpit and close the door. The engines start up. The passengers begin glancing around for a sign of a practical joke. None forthcoming.
The plane moves faster and faster down the runway and the people setting in the window seats realize they are headed straight for the water at the edge of the airport. As it begins to look as though the plane will plough into the water, panicked screams fill the cabin.
At that moment, the plane lifts smoothly into the air. The passengers relax and laugh a little sheepishly and soon all retreat into their magazines secure in the knowledge that the plane is in good hands.
In the cockpit, one of the blind pilots turns to the other and says," ya know Bob, one of these days, they're gonna scream too late and we're all gonna die.""
