Distance from O'Fallon, IL to Denver, CO

Driving distance from O'Fallon, IL to Denver, CO is 867 miles (1395 km). How far is it from O'Fallon, IL to Denver, CO? It's a 13 hours 03 minutes drive by car. Flight distance is approximately 811 miles (1305 km) and flight time from O'Fallon, IL to Denver, CO 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 O'Fallon, IL to Denver, CO?

To travel the distance from O'Fallon, IL to Denver, CO, 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.

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Last distance calculations