The flight distance from Dongshan Airport (HLD) in Hailar, China to Seattle-Tacoma International Airport (SEA) in Seattle, United States is 7,721 kilometers (4,798 miles / 4,169 nautical miles). The estimated flight time for this route is approximately 10h, flying northeast at a heading of 40°.

This is a long-haul route typically operated by wide-body aircraft such as the Boeing 777 or Airbus A350. Full meal service, in-flight entertainment, and comfort amenities are standard.

This is an international route connecting China 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 19:06 in Hailar, it's 04:06 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 1,737 feet between the two airports. Seattle-Tacoma International Airport sits lower than Dongshan Airport.

The return flight from Seattle (SEA) to Hailar (HLD) follows a heading of 322° (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 Dongshan Airport (HLD) and Seattle-Tacoma International Airport (SEA) detail pages, or use our flight duration calculator to compare other routes.