Sit on the Left side of the plane for the best views on flights from Copenhagen to Seattle. Left side wins both departure and arrival. Over Greenland and northern Canada the left side also faces slightly more southward giving better views of the Greenland ice sheet interior and the Canadian Rockies on descent. Right side has the Pacific Ocean for much of the cruise, which is featureless open water.

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 historic harbor area. Right side faces inland Sweden with less visual interest. Notable sights include: Øresund Bridge, Copenhagen city center and harbor, Amager Fælled wetlands, Malmö waterfront across the strait.

When landing at Seattle Tacoma International (SEA), sit on the Left side for the best views. SeaTac typically lands on runways 16L/16R heading south, meaning the approach comes from the north over Puget Sound. Left side faces east toward Mount Rainier and the Cascade Range, which are dramatically visible on clear days during the descent. Right side looks west over the Olympic Peninsula with less urban interest. Notable sights include: Mount Rainier, Cascade Range, Lake Washington, Seattle city skyline.

The flight from Kastrup (CPH) to Seattle Tacoma International (SEA) takes Approximately 9 to 10 hours.

The polar route crosses southern Norway and the North Sea, then tracks over the southern tip of Greenland where the ice sheet and fjord coastline are visible, followed by Baffin Island and the Canadian Arctic Archipelago. The flight then crosses northern Canada over the boreal forest of Nunavut and British Columbia before descending over the Cascade Range into Seattle. The Rocky Mountains and Coast Ranges of British Columbia are visible during descent on clear days.