Sit on the Right side of the plane for the best views on flights from St. Louis to Seattle. Right side wins both ends of this flight. At takeoff you get the Atlantic coastline and Dakar's peninsula. At landing you get Puget Sound and the Olympic Mountains. Over the mid-Atlantic and Greenland the views are similar on both sides, but the bookend geography strongly favors the right.

During takeoff from Saint Louis (XLS), sit on the Right side for the best views. Léopold Sédar Senghor International (XLS/DKR) typically departs on runway 01 heading north, or runway 19 heading south. On a northbound departure toward Europe and then North America, the right side gives you views over the Atlantic Ocean and the Cap-Vert Peninsula coastline as the aircraft banks right. The left side faces inland toward the flat Sahel scrubland which is far less interesting. Notable sights include: Cap-Vert Peninsula coastline, Dakar city waterfront and port, Île de Gorée (small island just offshore to the south), Atlantic Ocean stretching west.

When landing at Seattle Tacoma International (SEA), sit on the Right side for the best views. Seattle-Tacoma typically lands on runways 16L/16R heading south, meaning the aircraft approaches from the north over Puget Sound. The right side (west-facing) gives you views of Puget Sound, the Olympic Peninsula mountains, and the approach over the water. The left side faces east toward the Cascade Range including Mount Rainier, which is also spectacular, but the right side captures the dramatic water-and-mountains combination unique to this approach. Notable sights include: Puget Sound waterway, Olympic Mountains across the sound to the west, Vashon Island below, Elliott Bay and downtown Seattle skyline to the north.

The flight from Saint Louis (XLS) to Seattle Tacoma International (SEA) takes Approximately 17 to 19 hours with one stop, as there is no common nonstop routing. Typical connections route through Paris CDG, Amsterdam, or New York JFK, making total travel time 20-24 hours..

The route typically tracks north from Dakar over the Canary Islands and Morocco, then across the Iberian Peninsula or Bay of Biscay to a European hub. Transatlantic crossing over the North Atlantic passes near or over southern Greenland's ice sheet and glaciated coastline, then across eastern Canada over Quebec and Ontario boreal forest, across the Great Lakes region, and over the northern Rockies of Montana and Idaho before descending into the Pacific Northwest. The Greenland ice cap and the Canadian Rockies are the most visually dramatic midpoint features.