Sit on the Left side of the plane for the best views on flights from Kota Kinabalu to Singapore. Left side wins both ends of the flight. At departure you get Mount Kinabalu and the Crocker Range — one of the most dramatic mountain views in Southeast Asia from the air. At arrival you get the Johor Strait, Pulau Ubin, and Singapore's eastern coastline. The right side offers the South China Sea at departure and western Singapore's industrial zones on arrival, both considerably less interesting.

During takeoff from Kota Kinabalu International (BKI), sit on the Left side for the best views. KK's main runway 02/20 means southbound departures climb out heading roughly south. The left (east) side gives you a direct view of Mount Kinabalu and the Crocker Range as you gain altitude. The right side faces the South China Sea, which is featureless open water at this stage. Notable sights include: Mount Kinabalu (4,095m), Crocker Range, Kota Kinabalu city waterfront and islands of Tunku Abdul Rahman Park.

When landing at Singapore Changi (SIN), sit on the Left side for the best views. Changi typically uses runways 02/20 or 02C/20C, with southbound arrivals on approach from the north. The left (east) side gives views over the Johor Strait, the eastern coast of Singapore, and Changi's distinctive layout. The right side faces the built-up western Singapore and Jurong industrial area, which is less visually interesting. Notable sights include: Johor Strait, Changi Beach and coastline, Pulau Ubin island, eastern Singapore residential districts.

The flight from Kota Kinabalu International (BKI) to Singapore Changi (SIN) takes Approximately 2 hours 30 minutes.

The flight tracks roughly southwest over the South China Sea, crossing the coast of Sabah and then flying over open water for the majority of the route. You may glimpse the northeastern coast of Borneo (Sabah lowlands) shortly after departure, and the southern tip of the Malay Peninsula and the Riau Islands of Indonesia come into view on descent toward Singapore. The South China Sea dominates the middle portion of the flight with little land visible, though on very clear days the distant outline of the Natuna Islands (Indonesia) may be faintly visible to the right side.