There are
1,437 mi
from West Covina, CA to Mesquite, TX
That's the driving distance. It would take 1 day to go from West Covina, California to Mesquite, Texas.
The flight distance (direct flight from West Covina, CA to Mesquite, TX) is 1,231.73 mi.
1,437 mi = 1.61 kms