There are
935 mi
from Flagstaff, AZ to Shasta Lake, CA
That's the driving distance. It would take 16 hours 51 mins to go from Flagstaff, Arizona to Shasta Lake, California.
The flight distance (direct flight from Flagstaff, AZ to Shasta Lake, CA) is 695.82 mi.
935 mi = 1,504.51 kms