There are
1,019 mi
from Danbury, CT to Swansea, IL
That's the driving distance. It would take 19 hours 9 mins to go from Danbury, Connecticut to Swansea, Illinois.
The flight distance (direct flight from Danbury, CT to Swansea, IL) is 896.16 mi.
1,019 mi = 1.61 kms