There are 687.62 miles from Seattle–Tacoma International Airport (SEA) to Salt Lake City International Airport (SLC) in southeast direction and 843 miles (1,356.68 kilometers) by car, following the I-84 route.
SEA Airport and SLC Airport are 15 hours 17 mins far apart, if you drive non-stop.
This is the fastest route from SEA Airport to SLC Airport. The halfway point is Huntington, OR.
Please note the time difference between SEA Airport and SLC Airport is 1 hour. The current time in SEA Airport is 9:47 pm and the current time in SLC Airport is 10:47 pm.
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