There are
1,410 mi
from Rosemead, CA to Colleyville, TX
That's the driving distance. It would take 1 day to go from Rosemead, California to Colleyville, Texas.
The flight distance (direct flight from Rosemead, CA to Colleyville, TX) is 1,206.22 mi.
1,410 mi = 2,269.73 kms