There are
2,819 mi
from Milford, CT to Upland, CA
That's the driving distance. It would take 2 days 2 hours to go from Milford, Connecticut to Upland, California.
The flight distance (direct flight from Milford, CT to Upland, CA) is 2,460.15 mi.
2,819 mi = 4,536.10 kms