There are
2,530 mi
from Pittsburg, CA to Alpena, MI
That's the driving distance. It would take 1 day 20 hours to go from Pittsburg, California to Alpena, Michigan.
The flight distance (direct flight from Pittsburg, CA to Alpena, MI) is 2,026.55 mi.
2,530 mi = 4,071.84 kms