The flight distance from Seattle-Tacoma International Airport (SEA) in Seattle, United States to Sultan Mahmud Airport (TGG) in Kuala Terengganu, Malaysia is 12,654 kilometers (7,863 miles / 6,833 nautical miles). The estimated flight time for this route is approximately 16h, flying northwest at a heading of 309°.

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 Malaysia. 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 00:55 in Seattle, it's 16:55 in Kuala Terengganu. 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.

The return flight from Kuala Terengganu (TGG) to Seattle (SEA) follows a heading of 32° (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 Sultan Mahmud Airport (TGG) detail pages, or use our flight duration calculator to compare other routes.