St. Louis to Upper Alton: Road Trip Guide & Distance

How far is St. Louis from Upper Alton?

The distance from St. Louis to Upper Alton is 19.8 miles (31.9 km) as the crow flies. Upper Alton is located N of St. Louis. By car, the driving distance is approximately 25.8 miles, taking about 31min. A direct flight would take roughly 32min. Both are located in United States — St. Louis in Missouri and Upper Alton in Illinois.

This is a very short trip, perfect for a quick morning drive or an easy commute. Given the short distance, driving or taking a train is often faster and more convenient than dealing with airport security and flight boarding times.

Coordinates come from public place data for St. Louis and Upper Alton. The driving distance is estimated from straight-line distance with a road-factor model, so confirm the route in your navigation app. Fuel, flight, bus, and train values are planning estimates and can change by date, provider, road closures, and border rules.