There are 2,401.71 miles from Lancaster to Seattle–Tacoma International Airport (SEA) in west direction and 3,022 miles (4,863.44 kilometers) by car and ferry, following the I-90 route.
Lancaster and SEA Airport are 1 day 22 hours far apart, if you drive non-stop for 1 day 19 hours and take a ferry for 2 hours 30 mins .
This is the fastest route from Lancaster, NH to SEA Airport. The halfway point is Valley Springs, SD.
Please note the time difference between Lancaster, NH and SEA Airport is 3 hours. The current time in Lancaster is 7:08 pm and the current time in SEA Airport is 4:08 pm.
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