Distance from Ontario, CA to St. Louis, MO

Driving distance from Ontario, CA to St. Louis, MO is 1789 miles (2879 km). How far is it from Ontario, CA to St. Louis, MO? It's a 27 hours 46 minutes drive by car. Flight distance is approximately 1554 miles (2501 km) and flight time from Ontario, CA to St. Louis, MO is 03 hours 07 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
1789 Miles
/
2879 Km
Driving distance
Gas consumption
71.56 Gallons
273.51 Litres
Gas consumption
Flight distance
1554 Miles
/
2501 Km
Flight distance

How far is it from Ontario, CA to St. Louis, MO?

To travel the distance from Ontario, CA to St. Louis, 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. Louis, MO

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Last distance calculations