Air distance from Ottawa, Canada to Lisbon, Portugal is 3350.1 Miles (5391.5 Kilometers / 2909.2 Nautical Miles).
6 hrs, 57 mins is the flight duration between Ottawa and Lisbon. 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.