Sit on the Left side of the plane for the best views on flights from Singapore to Kathmandu. The Himalayan approach into Kathmandu is a globally renowned scenic event, far outweighing the modest Singapore Strait departure view. Most of the flight is over featureless cloud or Bay of Bengal, so the mountain finale dominates the scoring.

During takeoff from Singapore Changi (SIN), sit on the Right side for the best views. Departing Changi, the right side gives a good look at the Singapore Strait, the container ship anchorages, and the city's eastern coastline before the aircraft turns northwest over the Malacca Strait. Left side mostly shows Batam and Indonesian islands in haze. Notable sights include: Singapore Strait shipping lanes, Changi coastline, East Johor coast, Riau Islands (Indonesia) in distance.

When landing at Tribhuvan International (KTM), sit on the Left side for the best views. Approaching Kathmandu from the south, the left side captures the dramatic wall of the Himalayas including Everest, Langtang, and Annapurna ranges as the flight descends over Nepal's foothills. This is one of the most famous mountain approaches in commercial aviation. Notable sights include: Himalayan main range including Everest and Langtang Himal, Kathmandu Valley terraced hills, Bagmati River valley.

The flight from Singapore Changi (SIN) to Tribhuvan International (KTM) takes 4h 05m.

Bay of Bengal open water, Andaman Sea, coastline of Myanmar or eastern India depending on routing, then Gangetic plain before the Himalayan foothills appear near Nepal