There are
925 mi
from Rockford, IL to Grapevine, TX
That's the driving distance. It would take 17 hours 10 mins to go from Rockford, Illinois to Grapevine, Texas.
The flight distance (direct flight from Rockford, IL to Grapevine, TX) is 778.39 mi.
925 mi = 1,488.03 kms