The trip from Madison to St. Louis covers about 400 miles. Driving via I-90 E and I-55 S is the most efficient route, taking roughly 6.5 hours. You will pass through Rockford and Bloomington, Illinois. This route is relatively flat and straightforward. St. Louis is a major hub, making it accessible by car from the upper Midwest.
Total Distance: 650 km driving, 530 km air distance.
I-55 is a major artery; watch for heavy truck traffic.
Spring and Fall for mild temperatures and outdoor festivals.