There are
1,988 mi
from Upland, CA to Smyrna, TN
That's the driving distance. It would take 1 day 10 hours to go from Upland, California to Smyrna, Tennessee.
The flight distance (direct flight from Upland, CA to Smyrna, TN) is 1,758.35 mi.
1,988 mi = 1.61 kms