There are
2,544 mi
from Pomona, CA to Hagerstown, MD
That's the driving distance. It would take 1 day 21 hours to go from Pomona, California to Hagerstown, Maryland.
The flight distance (direct flight from Pomona, CA to Hagerstown, MD) is 2,228.01 mi.
2,544 mi = 4,094.61 kms