"See actual flight paths with flightpaths.com"
Weather, politics and local regulations can affect the choice of airspace and flight corridors. Flightpaths.com lets you see the real flight paths and compare passenger airlines and flight times simplified on an interactive map.
Flights from London (LHR), United Kingdom to Vancouver (YVR), Canada illustrated on a map. Based on 84 recorded flights, the distance can vary between 4748 and 4969 miles.