The flight distance from Sepinggan International Airport (BPN) in Balikpapan-Borneo Island, Indonesia to Sofia Airport (SOF) in Sofia, Bulgaria is 10,388 kilometers (6,455 miles / 5,609 nautical miles). The estimated flight time for this route is approximately 13h, flying northwest at a heading of 313°.

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 Indonesia with Bulgaria. It is an intercontinental flight between Asia and Europe. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 06:07 in Balikpapan-Borneo Island, it's 01:07 in Sofia. 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 1,730 feet between the two airports. Sofia Airport sits higher than Sepinggan International Airport.

The return flight from Sofia (SOF) to Balikpapan-Borneo Island (BPN) follows a heading of 89° (east). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Sepinggan International Airport (BPN) and Sofia Airport (SOF) detail pages, or use our flight duration calculator to compare other routes.