There are
2,079 mi
from San Leandro, CA to Swansea, IL
That's the driving distance. It would take 1 day 12 hours to go from San Leandro, California to Swansea, Illinois.
The flight distance (direct flight from San Leandro, CA to Swansea, IL) is 1,740.22 mi.
2,079 mi = 3.22 kms