There are
1,702 mi
from Concord, CA to Denison, TX
That's the driving distance. It would take 1 day 6 hours to go from Concord, California to Denison, Texas.
The flight distance (direct flight from Concord, CA to Denison, TX) is 1,452.15 mi.
1,702 mi = 2,739.16 kms