The flight distance from Long Semado Airport (LSM) in Long Semado, Malaysia to Seattle-Tacoma International Airport (SEA) in Seattle, United States is 11,976 kilometers (7,441 miles / 6,466 nautical miles). The estimated flight time for this route is approximately 15h, flying northeast at a heading of 37°.

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

Time zone information: When it's 03:53 in Long Semado, it's 12:53 in Seattle. With a 15-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 1,718 feet between the two airports. Seattle-Tacoma International Airport sits lower than Long Semado Airport.

The return flight from Seattle (SEA) to Long Semado (LSM) follows a heading of 298° (west northwest). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

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