The flight distance from Tan Son Nhat International Airport (SGN) in Ho Chi Minh City, Vietnam to George F. L. Charles Airport (SLU) in Castries, Saint Lucia is 16,935 kilometers (10,523 miles / 9,144 nautical miles). The estimated flight time for this route is approximately 21h, flying north northwest at a heading of 333°.

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 Saint Lucia. 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 17:06 in Ho Chi Minh City, it's 06:06 in Castries. With a 11-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 Castries (SLU) to Ho Chi Minh City (SGN) follows a heading of 27° (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 Tan Son Nhat International Airport (SGN) and George F. L. Charles Airport (SLU) detail pages, or use our flight duration calculator to compare other routes.