Distance from Longmont, CO to St. Charles, MO

Driving distance from Longmont, CO to St. Charles, MO is 856 miles (1378 km). How far is it from Longmont, CO to St. Charles, MO? It's a 12 hours 46 minutes drive by car. Flight distance is approximately 784 miles (1261 km) and flight time from Longmont, CO to St. Charles, MO is 01 hours 34 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
856 Miles
/
1378 Km
Driving distance
Gas consumption
34.24 Gallons
130.91 Litres
Gas consumption
Flight distance
784 Miles
/
1261 Km
Flight distance

How far is it from Longmont, CO to St. Charles, MO?

To travel the distance from Longmont, CO to St. Charles, MO, 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 St. Charles, MO

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Last distance calculations