There are 222.96 miles from Seattle–Tacoma International Airport (SEA) to Saint John in east direction and 278 miles (447.40 kilometers) by car, following the I-90 E route.
SEA Airport and Saint John are 4 hours 23 mins far apart, if you drive non-stop .
This is the fastest route from SEA Airport to Saint John, WA. The halfway point is Vantage, WA.
SEA Airport and Saint John, WA are in the same time zone (PDT). Current time in both locations is 12:42 pm.
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