Sit on the Right side of the plane for the best views on flights from London to Kuala Lumpur. The right side wins overall primarily for the spectacular London departure view. During the long overwater and overland cruise through South Asia and the Bay of Bengal, neither side offers dramatically more, but the right side also picks up views of the Indian subcontinent coastline and Sri Lanka on some routing variants. The left side's advantage on landing at KLIA is real but shorter in duration.

During takeoff from Heathrow (LHR), sit on the Right side for the best views. Heathrow typically departs eastbound on runways 09L/09R, and the right side gives you a clear view south over central London as the aircraft climbs and turns. You'll see the Thames snaking through the city, with the dense urban grid of West London and then the City itself coming into view. The left side faces north toward the suburbs with far less to see. Notable sights include: River Thames through central London, Wembley Stadium arch, Windsor Castle and Great Park to the southwest briefly before the turn, Richmond Park.

When landing at Kuala Lumpur International (KUL), sit on the Left side for the best views. KLIA typically lands from the north on runway 14L/14R or approaches from the northeast, and the left side gives views over the Titiwangsa mountain range and the forested interior of the Malay Peninsula on descent. As you break through lower cloud layers you'll see the vast palm oil plantation patchwork and then the airport's distinctive dual-terminal layout. The right side faces west toward the Strait of Malacca with less visual interest. Notable sights include: Titiwangsa Range (Main Range of Peninsular Malaysia), palm oil plantation grid across Selangor, Kuala Lumpur city skyline with Petronas Towers visible to the northeast, Putrajaya government complex lake and radial boulevard layout.

The flight from Heathrow (LHR) to Kuala Lumpur International (KUL) takes Approximately 12 to 13 hours.

The route typically tracks southeast over France and the Alps, then across the Adriatic and into Turkish airspace before crossing Iran and Pakistan. Over India the aircraft passes over the Deccan Plateau and descends toward the Bay of Bengal. The Andaman Islands are sometimes visible below on clear days before the aircraft crosses the Malay Peninsula. The Alps are briefly visible early in the flight, and the Zagros Mountains of Iran are a notable feature mid-route.