There are 1,164.22 miles from Saint Louis to Salt Lake City International Airport (SLC) in west direction and 1,325 miles (2,132.38 kilometers) by car, following the I-80 route.
Saint Louis and SLC Airport are 18 hours 42 mins far apart, if you drive non-stop .
This is the fastest route from Saint Louis, MO to SLC Airport. The halfway point is North Platte, NE.
Please note the time difference between Saint Louis, MO and SLC Airport is 1 hour. The current time in Saint Louis is 7:05 pm and the current time in SLC Airport is 6:05 pm.
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