Sit on the Right side of the plane for the best views on flights from Seattle to Singapore. The right side delivers the spectacular Puget Sound and Olympic Mountains departure from Seattle, and over the Pacific the right side faces generally south and east, offering views of the Aleutian arc during the northern Pacific crossing. The landing views are slightly better on the left, but the takeoff experience on the right is more dramatic and the overall flight favors right for the Pacific Ocean expanse and island chain sightings.

During takeoff from Seattle Tacoma International (SEA), sit on the Right side for the best views. SEA primarily uses runways 16L/16R for southbound departures, meaning the aircraft heads south-southeast. The right side faces west toward Puget Sound, the Olympic Peninsula, and the full panorama of the Olympic Mountains. The left side gets the Cascade Range and Mount Rainier, but the right side offers the dramatic water-and-mountains combination that defines the Seattle landscape. Notable sights include: Puget Sound, Olympic Peninsula, Olympic Mountains, Vashon Island.

When landing at Singapore Changi (SIN), sit on the Left side for the best views. Singapore Changi typically uses runways 02L/02R or 20L/20R depending on wind. On the common northbound approach to runway 02, aircraft approach from the south over the Singapore Strait. The left side faces east toward the South China Sea and the southern islands of the Indonesian archipelago. On approach from the south, the left side also captures the downtown Singapore skyline and Marina Bay as the aircraft turns to align, making it the more rewarding side overall. Notable sights include: Marina Bay Sands and Singapore CBD skyline, Sentosa Island, Batam Island (Indonesia), Singapore Strait.

The flight from Seattle Tacoma International (SEA) to Singapore Changi (SIN) takes Approximately 17 to 18 hours nonstop.

The great circle route arcs northwest over British Columbia and the Gulf of Alaska before crossing the North Pacific. Visible features include the Aleutian Islands chain stretching southwest from Alaska, the vast open North Pacific Ocean, the Kuril Islands and Kamchatka Peninsula on the horizon to the right, the Japanese archipelago including Hokkaido and Honshu as the route descends southward, the East China Sea, Taiwan Strait, Luzon Strait north of the Philippines, and finally the South China Sea approaching Singapore from the north.