Sit on the Left side of the plane for the best views on flights from Taipei to Portland. While takeoff offers interesting coastal views, the landing approach into Portland provides more dramatic and sustained scenery. Mount Hood and the Cascade Range are iconic landmarks visible for 30+ minutes of descent, making left-side seats the better choice for the overall flight experience.

During takeoff from Chiang Kai Shek International (TPE), sit on the Right side for the best views. Right-side seats offer views of the Taiwan Strait and northern Taiwan's coastline during the northbound climb-out from Taipei. The strait's shipping lanes and the contrast between Taiwan's mountainous interior and coastal plains are clearly visible within the first 15 minutes of flight. Notable sights include: Taiwan Strait (west), North Coast of Taiwan, Yangmingshan volcanic plateau (northeast of airport), Keelung harbor and northeastern ports.

When landing at Portland International (PDX), sit on the Left side for the best views. Left-side seats provide excellent views during the descent approach into Portland. The Cascade Range and Mount Hood dominate the eastern approach, and the Willamette River valley's urban sprawl becomes visible as the aircraft descends westward toward PDX. Notable sights include: Mount Hood (11,240 ft, southeast), Cascade Range, Willamette River valley, Columbia River gorge (northern approach).

The flight from Chiang Kai Shek International (TPE) to Portland International (PDX) takes Approximately 11-12 hours.

The flight crosses the Pacific Ocean for roughly 8 hours with no visible landmarks. The Aleutian Islands (Alaska) may be visible on the northern route near the halfway point if flying the great-circle path. The North American continent becomes visible around 2 hours before landing, with the Rocky Mountains (British Columbia/Washington state) appearing on the eastern horizon, followed by the Cascade Range as the aircraft descends toward Portland.