Distance between cities › USA › Missouri › Aurora, MO › Distance from Aurora to O Fallon Book Hotels

Distance from Aurora, MO to O Fallon, MO

Distance

241 mi

Time

4 hours 49 mins

Gas Cost

$21 - $41

There are 207.93 miles from Aurora to O Fallon in northeast direction and 241 miles (387.85 kilometers) by car, following the I-44 route.

Aurora and O Fallon are 4 hours 49 mins far apart, if you drive non-stop .

This is the fastest route from Aurora, MO to O Fallon, MO. The halfway point is Saint Robert, MO.

Aurora, MO and O Fallon, MO are in the same time zone (CDT). Current time in both locations is 3:25 pm.

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Lowest Price Rental Cars in Aurora, MO

Planning on renting a car to go from Aurora, MO to O Fallon, MO? Here there are some offers to rent a car in Aurora, MO

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Aurora »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 9.69 gallons of gas to cover the route between Aurora, MO and O Fallon, MO.

The estimated cost of gas to go from Aurora to O Fallon is $29.94.

During the route, an average car will release 189.88 pounds of CO₂ to the atmosphere. The carbon footprint would be 0.79 pounds of CO₂ per mile.

Average USA gas price used for calculation is $3.09 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Aurora, MO and O Fallon, MO

If you want to meet halfway between Aurora, MO and O Fallon, MO or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 37.819496 and -92.178123, or 37º 49' 10.1856" N, 92º 10' 41.2428" W. This location is 120.66 miles away from Aurora, MO and O Fallon, MO and it would take approximately 2 hours 24 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Saint Robert, MO, situated 124 miles from Aurora, MO and 127 miles from O Fallon, MO. It would take 1 hour 57 mins to go from Aurora to Saint Robert and 2 hours 6 mins to go from O Fallon to Saint Robert.