There are
2,539 mi
from Oceanside, CA to Altoona, PA
That's the driving distance. It would take 1 day 21 hours to go from Oceanside, California to Altoona, Pennsylvania.
The flight distance (direct flight from Oceanside, CA to Altoona, PA) is 2,194.94 mi.
2,539 mi = 4,086.02 kms