The flight distance from San Francisco International Airport (SFO) in San Francisco, United States to Parapat Airport (SIW) in Parapat-Sumatra Island, Indonesia is 13,840 kilometers (8,600 miles / 7,473 nautical miles). The estimated flight time for this route is approximately 17h, flying northwest at a heading of 307°.

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

Time zone information: When it's 02:55 in San Francisco, it's 17:55 in Parapat-Sumatra Island. With a 15-hour time difference, travelers should plan for significant jet lag. It typically takes one day per hour of time difference to fully adjust.

There is a significant elevation difference of 3,068 feet between the two airports. Parapat Airport sits higher than San Francisco International Airport.

The return flight from Parapat-Sumatra Island (SIW) to San Francisco (SFO) follows a heading of 39° (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 San Francisco International Airport (SFO) and Parapat Airport (SIW) detail pages, or use our flight duration calculator to compare other routes.