There are
2,030 mi
from Fairfield, CA to Swansea, IL
That's the driving distance. It would take 1 day 11 hours to go from Fairfield, California to Swansea, Illinois.
The flight distance (direct flight from Fairfield, CA to Swansea, IL) is 1,726.92 mi.
2,030 mi = 3.22 kms