Sit on the Left side of the plane for the best views on flights from Copenhagen to Seattle. While takeoff offers interesting Øresund views on the right, the landing approach into Seattle provides superior visual drama with the Olympic and Cascade mountain ranges framing Puget Sound. The left side captures the most iconic Pacific Northwest geography during the final descent.

During takeoff from Kastrup (CPH), sit on the Right side for the best views. CPH typically departs eastbound (runways 04L/04R). Right-side seats face north across the Øresund Strait toward Sweden, offering views of the strait's width, the Malmö coastline, and the Øresund Bridge spanning the water. Left seats face inland toward flat Danish terrain with minimal visual interest. Notable sights include: Øresund Strait (water body separating Denmark and Sweden), Øresund Bridge (distinctive cable-stayed structure), Malmö city and harbor (Swedish coast), Amager Island (flat, developed terrain below departure path).

When landing at Boeing Fld King Co International (BFI), sit on the Left side for the best views. BFI approaches from the east (typically runway 16 or 13L/13R depending on wind). Left-side seats during descent over Puget Sound offer views of the Olympic Mountains to the west, the Cascade Range to the east, and Lake Washington. Right seats face the industrial areas and less dramatic terrain east of the airport. Notable sights include: Olympic Mountains (snow-capped range visible to the west across Puget Sound), Cascade Range (eastern horizon, including Mount Rainier on clear days), Lake Washington (large freshwater lake east of Seattle), Puget Sound (water body west of approach path).

The flight from Kastrup (CPH) to Boeing Fld King Co International (BFI) takes Approximately 9.5 to 10.5 hours depending on winds and routing.

The flight path crosses the North Atlantic, passing north of Iceland and south of Greenland. Over the Atlantic, no landmarks are visible except occasional icebergs near Greenland (rarely visible at cruise altitude). Upon approaching North America, the Canadian Maritime provinces and Nova Scotia appear, followed by the New England coast. The flight then crosses the Great Lakes region or northern US states before descending into the Pacific Northwest. The most visually notable midpoint feature is the transition from the Atlantic to the North American continent, typically visible 3-4 hours before Seattle arrival.