There are
1,544 mi
from Upland, CA to Seabrook, TX
That's the driving distance. It would take 1 day 2 hours to go from Upland, California to Seabrook, Texas.
The flight distance (direct flight from Upland, CA to Seabrook, TX) is 1,361.34 mi.
1,544 mi = 1.61 kms