The flight distance from Bost Airport (BST) in Bost, Afghanistan to Sydney Kingsford Smith International Airport (SYD) in Sydney, Australia is 11,638 kilometers (7,231 miles / 6,284 nautical miles). The estimated flight time for this route is approximately 15h, flying east southeast at a heading of 121°.

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 Afghanistan with Australia. It is an intercontinental flight between Asia and Oceania. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 05:01 in Bost, it's 10:31 in Sydney. The 5.5-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

There is a significant elevation difference of 2,443 feet between the two airports. Sydney Kingsford Smith International Airport sits lower than Bost Airport.

The return flight from Sydney (SYD) to Bost (BST) follows a heading of 298° (west 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 Bost Airport (BST) and Sydney Kingsford Smith International Airport (SYD) detail pages, or use our flight duration calculator to compare other routes.