Distance from O'Fallon, MO to Thornton, CO
Driving distance from O'Fallon, MO to Thornton, CO is 819 miles (1319 km). How far is it from O'Fallon, MO to Thornton, CO? It's a 12 hours 23 minutes drive by car. Flight distance is approximately 765 miles (1232 km) and flight time from O'Fallon, MO to Thornton, CO is 01 hours 32 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.
Check returning route - Distance from Thornton, CO to O'Fallon, MO How far is it from O'Fallon, MO to Thornton, CO?
To travel the distance from O'Fallon, MO to Thornton, 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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