Sit on the Right side of the plane for the best views on flights from Bangkok to Seoul. Right side scores higher due to superior urban and hydrographic features on both takeoff and landing. Bangkok's Chao Phraya River delta and Seoul's Han River with surrounding cityscape provide more visual interest and recognizable landmarks than the left side's open water and flat terrain. The approach into Gimpo particularly favors the right, offering city views and river scenery unavailable from the left.

During takeoff from Bangkok International (BKK), sit on the Right side for the best views. Right side captures Bangkok's urban sprawl and the Chao Phraya River delta during departure, with visible waterways and city infrastructure. Left side faces open countryside and rice paddies with minimal visual interest. Notable sights include: Chao Phraya River meanders, Bangkok metropolitan area grid, Don Mueang Airport vicinity, coastal marshlands to the southeast.

When landing at Gimpo (GMP), sit on the Right side for the best views. Right side offers superior approach scenery with the Han River, Seoul's urban landscape, and surrounding hills. The descent into Gimpo provides views of the city's western districts and the river's distinctive curves. Left side faces open water and lacks comparable landmarks. Notable sights include: Han River with its characteristic bends, Seoul metropolitan skyline, Gimpo Airport vicinity, low mountains and hills of the Seoul basin.

The flight from Bangkok International (BKK) to Gimpo (GMP) takes 3h 25m.

Laos-Thailand border region with the Mekong River, northern Thailand's mountainous terrain (Phetchabun Range), transition to Isaan plateau, central Vietnam's coastal regions and Red River Delta area, southern China's Yunnan province mountains, transition into North Korea's terrain, and the Korean peninsula's central mountain spine (Taebaek Range) before descent into Seoul basin