The flight distance from San Francisco International Airport (SFO) in San Francisco, United States to Zanzibar Airport (ZNZ) in Kiembi Samaki, Tanzania is 16,059 kilometers (9,978 miles / 8,671 nautical miles). The estimated flight time for this route is approximately 20h, flying north northeast at a heading of 33°.

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

Time zone information: When it's 12:31 in San Francisco, it's 22:31 in Kiembi Samaki. With a 10-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 Kiembi Samaki (ZNZ) to San Francisco (SFO) follows a heading of 335° (north northwest). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the San Francisco International Airport (SFO) and Zanzibar Airport (ZNZ) detail pages, or use our flight duration calculator to compare other routes.