Air distance from Libreville, Gabon to Hanoi, Vietnam is 6614.7 Miles (10645.4 Kilometers / 5744.2 Nautical Miles).
Flight duration time from Libreville to Hanoi is 13 hrs, 44 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.