Air distance from Beijing, China to Vientiane, Laos is 1730.6 Miles (2785.2 Kilometers / 1502.9 Nautical Miles).
3 hrs, 35 mins is the flight duration between Beijing and Vientiane. 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.