The flight distance from Cape Town International Airport (CPT) in Cape Town, South Africa to St. Mary's Airport (ISC) in St. Mary's, United Kingdom is 9,643 kilometers (5,992 miles / 5,207 nautical miles). The estimated flight time for this route is approximately 12h, flying north northwest at a heading of 344°.

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

Time zone information: When it's 17:53 in Cape Town, it's 15:53 in St. Mary's.

The return flight from St. Mary's (ISC) to Cape Town (CPT) follows a heading of 160° (south southeast). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Cape Town International Airport (CPT) and St. Mary's Airport (ISC) detail pages, or use our flight duration calculator to compare other routes.