There are
2,061 mi
from Modesto, CA to Swansea, IL
That's the driving distance. It would take 1 day 11 hours to go from Modesto, California to Swansea, Illinois.
The flight distance (direct flight from Modesto, CA to Swansea, IL) is 1,679.40 mi.
2,061 mi = 3.22 kms