There are 517.54 miles from Topsham to Washington Dulles International Airport (IAD) in southwest direction and 588 miles (946.29 kilometers) by car, following the I-95 and NJTP S route.
Topsham and IAD Airport are 9 hours 52 mins far apart, if you drive non-stop .
This is the fastest route from Topsham, ME to IAD Airport. The halfway point is Darien, CT.
Topsham, ME and IAD Airport are in the same time zone (EDT). Current time in both locations is 9:50 pm.
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