Sit on the Left side of the plane for the best views on flights from Paris to Seattle. Left side wins at both ends of the flight. The Paris departure gives you the city and Seine from the south, and the Seattle approach delivers Mount Rainier and the city skyline on the east side. Over the Atlantic and Canadian interior the views are largely ocean and boreal forest regardless of side, so the departure and arrival experiences are the deciding factor.

During takeoff from Charles De Gaulle (CDG), sit on the Left side for the best views. CDG typically departs westbound on runways 26L/26R or eastbound on 08L/08R. On a westbound departure toward the Atlantic, the left side gives you a clear view south over Paris — you can pick out the Seine river snaking through the city, the Eiffel Tower, and the dense urban grid of central Paris. On an eastbound departure, left side still tracks south toward the city as you bank right to head northwest. Notable sights include: Seine river bends through central Paris, Eiffel Tower and Champ de Mars, La Défense business district tower cluster, Bois de Boulogne forest patch west of the city.

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 aircraft approaches from the north over Puget Sound. The left side faces east, giving a direct view of Mount Rainier dominating the horizon, the Seattle skyline to the northeast, and Lake Washington. The right side looks west over Puget Sound and the Olympic Peninsula, which is scenic but less dramatic than Rainier. Notable sights include: Mount Rainier (14,411 ft, clearly dominant on the eastern horizon), Seattle city skyline and Elliott Bay, Lake Washington east of the city, Puget Sound and the islands of the Sound.

The flight from Charles De Gaulle (CDG) to Seattle Tacoma International (SEA) takes Approximately 10 to 11 hours.

The route tracks northwest from Paris over the English Channel, then across southern England or Scotland, then out over the North Atlantic on a great circle arc. The flight passes south of Greenland — on clear days the southern Greenland ice sheet and fjord coastline may be visible. The route then crosses the southern tip of Baffin Island or Hudson Strait, then over the boreal forests of Quebec and Ontario, across Manitoba and Saskatchewan, over the Canadian Rockies in British Columbia, and descends into Washington State over the Cascades. The Canadian Rockies crossing over British Columbia is the most visually dramatic mid-flight feature, with glaciated peaks and river valleys visible below.