There are
1,015 mi
from Danbury, CT to Fairview Heights, IL
That's the driving distance. It would take 19 hours 5 mins to go from Danbury, Connecticut to Fairview Heights, Illinois.
The flight distance (direct flight from Danbury, CT to Fairview Heights, IL) is 895.07 mi.
1,015 mi = 1.61 kms