There are
1,703 mi
from Modesto, CA to Harker Heights, TX
That's the driving distance. It would take 1 day 5 hours to go from Modesto, California to Harker Heights, Texas.
The flight distance (direct flight from Modesto, CA to Harker Heights, TX) is 1,401.56 mi.
1,703 mi = 1.61 kms