Air distance from London UK to Colombo Sri Lanka is 5415.1 Miles (8714.7 Kilometers / 4702.4 Nautical Miles).
Flight duration time from London UK to Colombo Sri Lanka is 11 hrs, 14 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.