Sit on the Left side of the plane for the best views on flights from Seattle to Copenhagen. Left side wins both departure and arrival. At takeoff you get Mount Rainier and Puget Sound; at landing you get the Øresund Bridge and Copenhagen harbor. During the polar routing the left side also faces south toward the Canadian Rockies during the early climb and later toward Greenland's ice sheet interior.

During takeoff from Seattle Tacoma International (SEA), sit on the Left side for the best views. SEA primarily departs north on runways 16L/16R (heading ~160°) or south on 34L/34R (heading ~340°). On northbound departures, the left side faces west toward Puget Sound and the Olympic Peninsula. On southbound departures, left faces east toward Mount Rainier and the Cascades. Either way, left delivers the dominant geographic features. Notable sights include: Mount Rainier (southeast, visible on southbound climb), Puget Sound and Elliott Bay (west), Lake Washington (east during northbound turn), Olympic Mountains (west across the sound).

When landing at Kastrup (CPH), sit on the Left side for the best views. CPH typically lands on runways 22L/22R (heading ~220°) or 04L/04R (heading ~040°). On the common 22 approach from the northeast, the left side faces southeast over the Øresund strait and the Swedish coast at Malmö, with Copenhagen's city center visible ahead-left. This gives a clear view of the bridge and urban waterfront. Notable sights include: Øresund Bridge (connecting Copenhagen to Malmö, Sweden), Copenhagen city center and harbor, Malmö skyline across the strait, Amager Fælled wetlands near the airport.

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

The route follows a polar great circle track northward over British Columbia and the Canadian Rockies, then across Hudson Bay or northern Quebec, over the southern tip of Greenland's ice sheet, across the Denmark Strait, over Iceland or just south of it, then across the Norwegian Sea and southern Scandinavia before descending into Denmark. Key features include the Canadian Rockies visible early in the flight, the vast boreal forest and tundra of northern Canada, Greenland's ice cap (one of the most dramatic aerial sights on any transatlantic route), and the Norwegian and Danish coastlines on descent.