O'Fallon, Illinois to Sulphur Springs: Road Trip Guide & Distance

How far is O'Fallon, Illinois from Sulphur Springs?

The distance from O'Fallon, Illinois to Sulphur Springs is 493.2 miles (793.8 km) as the crow flies. Sulphur Springs is located SW of O'Fallon, Illinois. By car, the driving distance is approximately 591.9 miles, taking about 11h 54min. A direct flight would take roughly 1h 30min. Both are located in United States — O'Fallon, Illinois in Illinois and Sulphur Springs in Texas.

This is a solid day of driving. Be sure to take breaks every 2-3 hours to avoid driver fatigue, and plan your meals ahead of time. Since you'll be heading mostly West, pack a good pair of sunglasses if you plan to drive during the late afternoon to avoid the harsh sun glare.

Coordinates come from public place data for O'Fallon, Illinois and Sulphur Springs. 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.