The flight distance from Kirkwall Airport (KOI) in Orkney Islands, United Kingdom to Seattle-Tacoma International Airport (SEA) in Seattle, United States is 6,962 kilometers (4,326 miles / 3,759 nautical miles). The estimated flight time for this route is approximately 9h, flying northwest at a heading of 318°.

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

Time zone information: When it's 07:32 in Orkney Islands, it's 23:32 in Seattle. With a 8-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 Seattle (SEA) to Orkney Islands (KOI) follows a heading of 30° (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 Kirkwall Airport (KOI) and Seattle-Tacoma International Airport (SEA) detail pages, or use our flight duration calculator to compare other routes.