There are
903 mi
from Trenton, NJ to Swansea, IL
That's the driving distance. It would take 17 hours 5 mins to go from Trenton, New Jersey to Swansea, Illinois.
The flight distance (direct flight from Trenton, NJ to Swansea, IL) is 821.50 mi.
903 mi = 1,453.33 kms