There are
1,981 mi
from Tustin, CA to Oswego, IL
That's the driving distance. It would take 1 day 10 hours to go from Tustin, California to Oswego, Illinois.
The flight distance (direct flight from Tustin, CA to Oswego, IL) is 1,691.97 mi.
1,981 mi = 3,188.09 kms