Air distance from Unalaska, USA to Lanchow, China is 4276.1 Miles (6881.7 Kilometers / 3713.3 Nautical Miles).
Flight duration time from Unalaska to Lanchow is 8 hrs, 52 mins. 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.