There are 551.63 miles from Saint Louis to Irving in southwest direction and 639 miles (1,028.37 kilometers) by car, following the I-44 W route.
Saint Louis and Irving are 10 hours 1 min far apart, if you drive non-stop .
This is the fastest route from Saint Louis, MO to Irving, TX. The halfway point is Peoria, OK.
Saint Louis, MO and Irving, TX are in the same time zone (CDT). Current time in both locations is 6:26 pm.
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