There are
1,999 mi
from Tustin, CA to Champaign, IL
That's the driving distance. It would take 1 day 10 hours to go from Tustin, California to Champaign, Illinois.
The flight distance (direct flight from Tustin, CA to Champaign, IL) is 1,683.48 mi.
1,999 mi = 3,217.62 kms