There are
2,659 mi
from Upland, CA to Elkton, MD
That's the driving distance. It would take 1 day 23 hours to go from Upland, California to Elkton, Maryland.
The flight distance (direct flight from Upland, CA to Elkton, MD) is 2,321.77 mi.
2,659 mi = 4,279.19 kms