Air distance from London UK to Riyadh Saudi Arabia is 3069.4 Miles (4939.7 Kilometers / 2665.4 Nautical Miles).
Flight duration time from London UK to Riyadh Saudi Arabia is 6 hrs, 22 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.