Sit on the Left side of the plane for the best views on flights from Copenhagen to Washington. Left side wins both ends of the flight. During the transatlantic crossing the views are largely ocean, but left side also gives slightly better angles on the southern tip of Greenland if the routing passes near it, and the Canadian Maritime coastline on descent. Left is the clear choice for this route.

During takeoff from Kastrup (CPH), sit on the Left side for the best views. Kastrup typically departs on runway 22L/22R heading southwest, then routes northwest over the Øresund strait. Left side gives you the view back over Copenhagen city center, the Øresund Bridge connecting Denmark to Sweden, and the harbor area. Right side faces inland Sweden with less to see. Notable sights include: Øresund Bridge (visible in full from above), Copenhagen city center and harbor, Amager Fælled (the flat green island below the airport), Malmö waterfront across the strait.

When landing at Washington Dulles International (IAD), sit on the Left side for the best views. Dulles typically lands on runways 01L/01R heading north, or 19L/19R heading south depending on winds. On the more common northward approach from the south, left side faces east toward Washington DC, giving views of the Potomac River, the National Mall corridor, and the Virginia suburbs. Right side faces west into the Blue Ridge foothills with less urban interest. Notable sights include: Potomac River winding northeast toward DC, Washington DC skyline and National Mall corridor (visible on clear days), Tysons Corner urban cluster, Dulles Access Road corridor cutting through Virginia suburbs.

The flight from Kastrup (CPH) to Washington Dulles International (IAD) takes Approximately 9 to 10 hours.

The route tracks northwest over southern Norway and the North Sea, then across Scotland and the North Atlantic. Depending on the jet stream routing, the flight may pass south of Iceland or near the southern tip of Greenland, where the ice cap and fjord coastline are visible on clear days. The Canadian Maritimes — Nova Scotia and Newfoundland — appear on the left side during descent into the eastern seaboard. The flight then tracks southwest over New England and the mid-Atlantic states before arriving at Dulles.