Sit on the Right side of the plane for the best views on flights from Seattle to Taipei. Right-side seats provide superior scenery at both ends of the journey: Mount Rainier and the Cascades during Seattle departure, and during the trans-Pacific cruise, right-side windows face north toward the Aleutian Islands and Kamchatka Peninsula (visible on clear days around 10-12 hours into flight). Left-side seats offer excellent Taiwan landing views but limited mid-flight scenery.

During takeoff from Boeing Fld King Co International (BFI), sit on the Right side for the best views. Right-side seats capture the Cascade Range and Mount Rainier during the initial climb-out eastward from Boeing Field. The aircraft departs to the east, so right-side windows face the dramatic volcanic peaks and foothills that dominate the Seattle region's eastern skyline. Notable sights include: Mount Rainier (14,411 ft), Cascade Range, Lake Union, Puget Sound shoreline.

When landing at Chiang Kai Shek International (TPE), sit on the Left side for the best views. Left-side seats offer views of Taiwan's northern coastline, the Taipei Basin, and the Keelung River valley during descent into Taoyuan. The aircraft approaches from the northwest, so left-side windows face the dramatic transition from the Taiwan Strait to the island's rugged northern terrain and urban sprawl. Notable sights include: Taiwan Strait, Keelung River valley, Taipei Basin urban area, northern Taiwan coastal mountains.

The flight from Boeing Fld King Co International (BFI) to Chiang Kai Shek International (TPE) takes Approximately 11-12 hours.

The flight path crosses the North Pacific, passing north of Hawaii and south of the Aleutian Islands. Around the 6-hour mark, the aircraft reaches the highest latitude near 50°N, where the Aleutian chain and Bering Sea become visible on clear days from right-side seats. The final 5 hours approach Taiwan from the northwest, crossing the East China Sea with occasional views of the Ryukyu Islands chain before descending into northern Taiwan.