The flight distance from St Gallen Altenrhein Airport (ACH) in Altenrhein, Switzerland to Singapore Changi International Airport (SIN) in Singapore, Singapore is 10,229 kilometers (6,356 miles / 5,523 nautical miles). The estimated flight time for this route is approximately 13h, flying east at a heading of 86°.

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

Time zone information: When it's 18:54 in Altenrhein, it's 01:54 in Singapore. With a 7-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 1,284 feet between the two airports. Singapore Changi International Airport sits lower than St Gallen Altenrhein Airport.

The return flight from Singapore (SIN) to Altenrhein (ACH) follows a heading of 318° (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 St Gallen Altenrhein Airport (ACH) and Singapore Changi International Airport (SIN) detail pages, or use our flight duration calculator to compare other routes.