Air distance from Dushanbe, Tajikistan to Riyadh, Saudi Arabia is 1610.5 Miles (2591.9 Kilometers / 1398.6 Nautical Miles).
Flight duration time from Dushanbe to Riyadh is 3 hrs, 20 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.