The flight distance from Port St Johns Airport (JOH) in Port St Johns, South Africa to Seattle-Tacoma International Airport (SEA) in Seattle, United States is 17,052 kilometers (10,596 miles / 9,208 nautical miles). The estimated flight time for this route is approximately 21h, flying northwest at a heading of 315°.

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

Time zone information: When it's 06:29 in Port St Johns, it's 21:29 in Seattle. With a 9-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 Port St Johns (JOH) follows a heading of 64° (east 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 Port St Johns Airport (JOH) and Seattle-Tacoma International Airport (SEA) detail pages, or use our flight duration calculator to compare other routes.