Distance between cities › USA › Arkansas › Casscoe, AR › Distance from Casscoe to O Fallon Book Hotels

Distance from Casscoe, AR to O Fallon, MO

Distance

394 mi

Time

7 hours 27 mins

Gas Cost

$37 - $71

There are 298.08 miles from Casscoe to O Fallon in north direction and 394 miles (634.08 kilometers) by car, following the I-55 and US-78 route.

Casscoe and O Fallon are 7 hours 27 mins far apart, if you drive non-stop .

This is the fastest route from Casscoe, AR to O Fallon, MO.

Casscoe, AR and O Fallon, MO are in the same time zone (CDT). Current time in both locations is 11:37 am.

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Lowest Price Rental Cars in Casscoe, AR

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Casscoe »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 15.83 gallons of gas to cover the route between Casscoe, AR and O Fallon, MO.

The estimated cost of gas to go from Casscoe to O Fallon is $51.63.

During the route, an average car will release 310.12 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 $3.26 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Casscoe, AR and O Fallon, MO

If you want to meet halfway between Casscoe, AR 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 36.431583 and -89.681374, or 36º 25' 53.6988" N, 89º 40' 52.9464" W. This location is 197.07 miles away from Casscoe, AR and O Fallon, MO and it would take approximately 3 hours 43 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Portageville, MO, situated 195 miles from Casscoe, AR and 201 miles from O Fallon, MO. It would take 3 hours 45 mins to go from Casscoe to Portageville and 3 hours 44 mins to go from O Fallon to Portageville.