There are 2,446.90 miles from Seattle–Tacoma International Airport (SEA) to Allenstown in east direction and 3,073 miles (4,945.51 kilometers) by car, following the I-90 route.
SEA Airport and Allenstown are 1 day 21 hours far apart, if you drive non-stop.
This is the fastest route from SEA Airport to Allenstown, NH. The halfway point is Hartford, SD.
Please note the time difference between SEA Airport and Allenstown, NH is 3 hours. The current time in SEA Airport is 2:30 am and the current time in Allenstown is 5:30 am.
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