There are
925 mi
from Rockford, IL to Grapevine, TX
That's the driving distance. It would take 17 hours 9 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 = 1,487.98 kms