There are 1,004.90 miles from Alton to Washington Dulles International Airport (IAD) in southeast direction and 1,210 miles (1,947.31 kilometers) by car, following the US-20 E route.
Alton and IAD Airport are 18 hours 46 mins far apart, if you drive non-stop .
This is the fastest route from Alton, IA to IAD Airport. The halfway point is New Carlisle, IN.
Please note the time difference between Alton, IA and IAD Airport is 1 hour. The current time in Alton is 2:55 am and the current time in IAD Airport is 3:55 am.
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