There are
2,092 mi
from Antioch, CA to Frankfort, IL
That's the driving distance. It would take 1 day 12 hours to go from Antioch, California to Frankfort, Illinois.
The flight distance (direct flight from Antioch, CA to Frankfort, IL) is 1,808.16 mi.
2,092 mi = 3,366.02 kms