There are
1,662 mi
from Sparks, NV to Harker Heights, TX
That's the driving distance. It would take 1 day 6 hours to go from Sparks, Nevada to Harker Heights, Texas.
The flight distance (direct flight from Sparks, NV to Harker Heights, TX) is 1,370.83 mi.
1,662 mi = 1.61 kms