The flight distance from Seattle-Tacoma International Airport (SEA) in Seattle, United States to Chengdu/Tianfu Airport (TFU) in Tianfu, China is 10,189 kilometers (6,331 miles / 5,502 nautical miles). The estimated flight time for this route is approximately 13h, flying northwest at a heading of 321°.

This is an ultra-long-haul route, one of the longest in aviation. It requires wide-body aircraft with extended range capability such as the Airbus A350-900ULR or Boeing 777-200LR. Passengers should prepare for an extended flight with multiple meal services.

This is an international route connecting United States with China. It is an intercontinental flight between North America and Asia. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 18:29 in Seattle, it's 10:29 in Tianfu. With a 16-hour time difference, travelers should plan for significant jet lag. It typically takes one day per hour of time difference to fully adjust.

There is a significant elevation difference of 1,021 feet between the two airports. Chengdu/Tianfu Airport sits higher than Seattle-Tacoma International Airport.

The return flight from Tianfu (TFU) to Seattle (SEA) follows a heading of 30° (north northeast). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Seattle-Tacoma International Airport (SEA) and Chengdu/Tianfu Airport (TFU) detail pages, or use our flight duration calculator to compare other routes.