The flight distance from Singapore Changi International Airport (SIN) in Singapore, Singapore to St Johns Industrial Air Park (SJN) in St Johns, United States is 14,724 kilometers (9,149 miles / 7,951 nautical miles). The estimated flight time for this route is approximately 18h, flying northeast at a heading of 38°.

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 02:19 in Singapore, it's 11:19 in St Johns. 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 5,715 feet between the two airports. St Johns Industrial Air Park sits higher than Singapore Changi International Airport. Travelers arriving at the higher-elevation airport should be aware of potential altitude effects.

The return flight from St Johns (SJN) to Singapore (SIN) follows a heading of 312° (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 Singapore Changi International Airport (SIN) and St Johns Industrial Air Park (SJN) detail pages, or use our flight duration calculator to compare other routes.