Sit on the Left side of the plane for the best views on flights from Osaka to Seoul. While takeoff favors the right for Osaka Bay and Kii Peninsula views, the landing approach over the Yellow Sea and Incheon's unique tidal mudflats provides more visually distinctive geography. The mudflats are a rare and striking feature not commonly seen on other routes, making the left side the better overall choice for this specific route.

During takeoff from Kansai International (KIX), sit on the Right side for the best views. KIX typically departs runway 06L/R heading northeast. Right-side seats offer immediate views of Osaka Bay's eastern shoreline and the Kii Peninsula's mountainous terrain rising inland. Left seats face back toward the Osaka urban sprawl with less dramatic topography. Notable sights include: Osaka Bay (immediate offshore water), Kii Peninsula (forested ridgelines to the southeast), Ikeda city district (urban grid visible northwest), Akashi Strait (visible as water passage between Honshu and Awaji Island to the west).

When landing at Incheon International (ICN), sit on the Left side for the best views. ICN's primary runways (15L/R and 16L/R) require approach from the southwest over the Yellow Sea. Left-side seats provide extended views of the Korean peninsula's western coastline, Incheon's tidal mudflats, and the approach path over water. Right seats face inland toward Seoul's urban area with less distinctive geography. Notable sights include: Yellow Sea (approach water body), Incheon tidal mudflats (distinctive tan-colored shallow areas), Ganghwa Island (large island visible northwest of approach path), Seoul metropolitan area (urban sprawl visible inland to the southeast).

The flight from Kansai International (KIX) to Incheon International (ICN) takes Approximately 2 hours 15 minutes.

The flight path crosses the Korea Strait (Tsushima Strait) at roughly the midpoint. At cruise altitude (33,000-35,000 feet), the strait itself is visible as a water passage between Honshu's northern coast and the Korean peninsula. Tsushima Island sits in the center of the strait and is visible as a forested landmass. The Japanese coast near Nagasaki prefecture (mountainous terrain) appears on the left during mid-flight, while the Korean peninsula's southern coast gradually becomes visible on the right. Weather permitting, visibility across the strait typically extends 50+ miles at cruise altitude.