There are
1,716 mi
from Denison, TX to Vallejo, CA
That's the driving distance. It would take 1 day 6 hours to go from Denison, Texas to Vallejo, California.
The flight distance (direct flight from Denison, TX to Vallejo, CA) is 1,465.01 mi.
1,716 mi = 2,762.11 kms