There are
2,102 mi
from Champaign, IL to Antioch, CA
That's the driving distance. It would take 1 day 12 hours to go from Champaign, Illinois to Antioch, California.
The flight distance (direct flight from Champaign, IL to Antioch, CA) is 1,795.83 mi.
2,102 mi = 3.22 kms