Air distance from Knoxville, USA to Rochester, USA is 615.2 Miles (990.1 Kilometers / 534.2 Nautical Miles).
Flight duration time from Knoxville to Rochester is 1 hrs, 28 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.