Air distance from Libreville, Gabon to Unalaska, USA is 8713.3 Miles (14022.6 Kilometers / 7566.6 Nautical Miles).
Flight duration time from Libreville to Unalaska is 18 hrs, 5 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.