Unless UA gives you special extra fast planes, my back of the envelope calcs say that means ~2800 hours airborne, plus even more adding in departure time, taxiing, and arrival time in airports/airplanes, maybe another 500 hours (I'm assuming you're mostly long-haul). If so, your travel time alone is over 35% of the hours in a year!

Hope you get to live some live on the plane, whether eating, sleeping, reading, or watching the movies you don't have time to see in the remaining time you have on the ground . . .