There are
797 mi
from Concord, CA to Evanston, WY
That's the driving distance. It would take 13 hours 40 mins to go from Concord, California to Evanston, Wyoming.
The flight distance (direct flight from Concord, CA to Evanston, WY) is 630.80 mi.
797 mi = 1,281.95 kms