The flight distance from Dien Bien Phu Airport (DIN) in Dien Bien Phu, Vietnam to Seattle-Tacoma International Airport (SEA) in Seattle, United States is 11,121 kilometers (6,910 miles / 6,005 nautical miles). The estimated flight time for this route is approximately 14h, flying north northeast at a heading of 29°.

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 Vietnam 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 16:31 in Dien Bien Phu, it's 01:31 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 1,179 feet between the two airports. Seattle-Tacoma International Airport sits lower than Dien Bien Phu Airport.

The return flight from Seattle (SEA) to Dien Bien Phu (DIN) follows a heading of 318° (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 Dien Bien Phu Airport (DIN) and Seattle-Tacoma International Airport (SEA) detail pages, or use our flight duration calculator to compare other routes.