Distance from Freeport, IL to O'Fallon, MO

Driving distance from Freeport, IL to O'Fallon, MO is 343 miles (553 km). How far is it from Freeport, IL to O'Fallon, MO? It's a 05 hours 19 minutes drive by car. Flight distance is approximately 247 miles (398 km) and flight time from Freeport, IL to O'Fallon, MO is 29 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
343 Miles
/
553 Km
Driving distance
Gas consumption
13.72 Gallons
52.54 Litres
Gas consumption
Flight distance
247 Miles
/
398 Km
Flight distance

How far is it from Freeport, IL to O'Fallon, MO?

To travel the distance from Freeport, IL to O'Fallon, 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 O'Fallon, MO

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Last distance calculations