The flight distance from Singapore Changi International Airport (SIN) in Singapore, Singapore to Union County, Troy Shelton Field (USC) in Union, United States is 15,965 kilometers (9,920 miles / 8,620 nautical miles). The estimated flight time for this route is approximately 20h, flying north at a heading of 8°.

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

Time zone information: When it's 17:49 in Singapore, it's 04:49 in Union. With a 13-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 Union (USC) to Singapore (SIN) follows a heading of 350° (north). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Singapore Changi International Airport (SIN) and Union County, Troy Shelton Field (USC) detail pages, or use our flight duration calculator to compare other routes.