The flight distance from Port St Johns Airport (JOH) in Port St Johns, South Africa to Tan Son Nhat International Airport (SGN) in Ho Chi Minh City, Vietnam is 9,447 kilometers (5,870 miles / 5,101 nautical miles). The estimated flight time for this route is approximately 12h, flying east northeast at a heading of 74°.

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 Vietnam. It is an intercontinental flight between Africa and Asia. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 16:58 in Port St Johns, it's 21:58 in Ho Chi Minh City. The 5-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

There is a significant elevation difference of 1,194 feet between the two airports. Tan Son Nhat International Airport sits lower than Port St Johns Airport.

The return flight from Ho Chi Minh City (SGN) to Port St Johns (JOH) follows a heading of 236° (west southwest). 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 Tan Son Nhat International Airport (SGN) detail pages, or use our flight duration calculator to compare other routes.