Sit on the Left side of the plane for the best views on flights from Calgary to London. Left side wins both ends of the flight. At departure you get the Rockies, and at arrival you get the Thames and London skyline on approach. Over the mid-Atlantic the views are similar on both sides, so the left seat carries the advantage for the two most visually rewarding phases.

During takeoff from Calgary International (YYC), sit on the Left side for the best views. YYC's primary departure runway is 35R/17L, and northbound departures on 35R put the Rocky Mountains directly to the left (west). You get a sustained view of the Front Ranges including the Bow Valley corridor and peaks around Banff as the aircraft climbs and turns northeast toward the transatlantic track. Notable sights include: Rocky Mountain Front Ranges, Bow Valley corridor, Nose Hill Park below, Cochrane foothills to the northwest.

When landing at Heathrow (LHR), sit on the Left side for the best views. Heathrow's dominant arrival flow is from the east on runways 27L/27R, meaning the aircraft approaches from the east heading west. A left-side seat gives you views over central London — the Thames, the City, and Canary Wharf — as you descend over east London before touchdown. Notable sights include: Thames River bends through east London, Canary Wharf tower cluster, The City of London skyline, Queen Elizabeth Olympic Park area.

The flight from Calgary International (YYC) to Heathrow (LHR) takes Approximately 8.5 to 9.5 hours.

The flight tracks northeast from Calgary over the Canadian prairies of Saskatchewan, then over Hudson Bay or northern Quebec depending on the day's routing, across the Labrador coast and out over the North Atlantic. Mid-flight passes near southern Greenland where the ice sheet and fjord coastline are visible on clear days, then crosses Iceland's volcanic plateau before descending over Scotland and northern England toward London.