Air distance from Washington DC, USA to Vaduz, Liechtenstein is 4188.5 Miles (6740.7 Kilometers / 3637.3 Nautical Miles).
8 hrs, 41 mins is the flight duration between Washington DC and Vaduz. This is the In-The-Air flight time. You should also add the taxi time, airport wait times and possible delays due to bad weather, etc. for the total flight duration time.