There are 144.85 miles from Portland to Seattle in north direction and 173.30 miles (278.90 kilometers) by car, following the I-5 route.
Portland and Seattle are 2 hours 29 mins far apart, if you drive non-stop.
This is the fastest route from Portland, OR to Seattle, WA. The halfway point is .
Portland, OR and Seattle, WA are in the same time zone (PDT). Current time in both locations is 7:17 am.
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