There are 424.21 miles from David City to O Fallon in southeast direction and 514 miles (827.20 kilometers) by car, following the I-29 S route.
David City and O Fallon are 8 hours 1 min far apart, if you drive non-stop .
This is the fastest route from David City, NE to O Fallon, IL. The halfway point is Grain Valley, MO.
David City, NE and O Fallon, IL are in the same time zone (CDT). Current time in both locations is 9:39 am.
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