Sit on the Left side of the plane for the best views on flights from Taipei to Seoul. While takeoff offers interesting Taiwan geography on the right, the landing approach into Incheon provides more dramatic and sustained visual interest. The Han River estuary, reclaimed islands, and port infrastructure create a distinctive industrial-geographic landscape that dominates the final 30 minutes of descent. Left-side seats capture this better and offer more photo opportunities.

During takeoff from Chiang Kai Shek International (TPE), sit on the Right side for the best views. Right-side seats capture the climb-out over the Taipei Basin and northern Taiwan's topography. Depending on runway assignment (typically 05L/05R or 23L/23R), northbound departures offer views of the Xueshan Range and the transition from urban Taipei toward the Taiwan Strait. Notable sights include: Taipei 101 and downtown Taipei district, Xueshan Range (Snow Mountain range) to the southeast, Tamsui River valley, Taiwan Strait coastline.

When landing at Incheon International (ICN), sit on the Left side for the best views. Left-side seats provide superior views during the descent into Incheon. The approach typically uses runways 03L/03R or 15L/15R depending on wind. Westbound or southwestbound approaches reveal the Han River estuary, Incheon's reclaimed land zones, and the Yellow Sea coastline—all prominent visual references during final descent. Notable sights include: Han River estuary and delta, Incheon's reclaimed artificial islands and port infrastructure, Yellow Sea coastline, Gyeonggi Bay.

The flight from Chiang Kai Shek International (TPE) to Incheon International (ICN) takes Approximately 2 hours 45 minutes to 3 hours 15 minutes.

The flight path crosses the Taiwan Strait (roughly 100 nm wide), then transitions over the East China Sea. At cruise altitude (33,000-35,000 feet), the strait itself is visible as open water with occasional shipping traffic visible as white dots. The Korean Peninsula becomes visible approximately 45 minutes before landing—first as a low, distant landmass on the horizon, then gradually revealing the western coastline, Gyeonggi Province's terrain, and the Seoul metropolitan area's haze dome. The Yellow Sea dominates the mid-flight view for roughly 90 minutes of the journey.