Miles between Downey, CA and St Marys, PA

There are
2,540 mi
from Downey, CA to St Marys, PA

That's the driving distance. It would take 1 day 21 hours to go from Downey, California to St Marys, Pennsylvania.

The flight distance (direct flight from Downey, CA to St Marys, PA) is 2,205.44 mi.

2,540 mi = 3.22 kms