Sit on the Left side of the plane for the best views on flights from Seoul to Agana. While takeoff favors the right for Seoul views, the landing approach to Guam strongly favors left seats for Mount Lam Lam and Apra Harbor. Since landing views are more dramatic and memorable on this route, left wins overall.

During takeoff from Incheon International (ICN), sit on the Right side for the best views. Incheon typically departs eastbound (Runway 16L/R or 34L/R depending on wind). Right-side seats offer views of Seoul's urban sprawl and the Han River delta as you climb out over the Yellow Sea. Left seats face inland toward mountains with less dramatic scenery during initial climb. Notable sights include: Han River estuary (wide, braided waterway directly below during climb), Seoul metropolitan area (dense urban grid to the southeast), Incheon's reclaimed land islands (geometric patterns of industrial zones), Yellow Sea (expanding westward as altitude increases).

When landing at Guam International (GUM), sit on the Left side for the best views. Guam approaches typically use Runway 06L/R (northeasterly) or 24L/R (southwesterly) depending on wind. Left-side seats on descent offer views of the Philippine Sea, Guam's distinctive volcanic topography (Mount Lam Lam), and the island's narrow profile. Right seats face open ocean with less geographic interest. Notable sights include: Mount Lam Lam (Guam's highest point, 1,296 feet, visible as a distinct volcanic peak), Philippine Sea (deep blue water surrounding the island), Apra Harbor (large natural harbor on the western side, visible as a protected water body), Guam's coral reef system (lighter turquoise shallows contrasting with deep blue).

The flight from Incheon International (ICN) to Guam International (GUM) takes Approximately 3 hours 45 minutes to 4 hours 15 minutes.

The flight crosses the Philippine Sea for most of its duration. Notable waypoints include passing east of the Izu Islands (Japan) at cruise altitude, then tracking south-southwest across open ocean. The Mariana Trench lies roughly 200 miles east of the flight path—not visible but geographically significant. Guam sits at the western edge of the Mariana Islands chain. No significant landmasses are visible during the cruise phase; the route is predominantly over deep ocean with occasional scattered clouds.