The flight distance from Silangit Airport (DTB) in Tingkeum-Sumatra Island, Indonesia to Seattle-Tacoma International Airport (SEA) in Seattle, United States is 13,187 kilometers (8,194 miles / 7,120 nautical miles). The estimated flight time for this route is approximately 17h, flying north northeast at a heading of 31°.

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 Indonesia 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 14:33 in Tingkeum-Sumatra Island, it's 23:33 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 3,627 feet between the two airports. Seattle-Tacoma International Airport sits lower than Silangit Airport.

The return flight from Seattle (SEA) to Tingkeum-Sumatra Island (DTB) follows a heading of 311° (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 Silangit Airport (DTB) and Seattle-Tacoma International Airport (SEA) detail pages, or use our flight duration calculator to compare other routes.