Distance from Denver, CO to O'Fallon, IL

Driving distance from Denver, CO to O'Fallon, IL is 867 miles (1395 km). How far is it from Denver, CO to O'Fallon, IL? It's a 13 hours 06 minutes drive by car. Flight distance is approximately 811 miles (1305 km) and flight time from Denver, CO to O'Fallon, IL is 01 hours 37 minutes. Don't forget to check out our "Gas cost calculator" option. It will calculate cost of driving this particular distance. See the map below for the visual display of the upcoming road trip.

Driving distance
867 Miles
/
1395 Km
Driving distance
Gas consumption
34.68 Gallons
132.53 Litres
Gas consumption
Flight distance
811 Miles
/
1305 Km
Flight distance

How far is it from Denver, CO to O'Fallon, IL?

To travel the distance from Denver, CO to O'Fallon, IL, please, click on the map to see the route for the journey. "Gas Cost Calculator" tool is to your right. You can always modify it and make the number more applicable for your journey.

Book a Hotel for your trip to O'Fallon, IL

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Last distance calculations