The flight distance from Sines Airport (SIE) in Sines Airport, Portugal to Singapore Changi International Airport (SIN) in Singapore, Singapore is 11,890 kilometers (7,388 miles / 6,420 nautical miles). The estimated flight time for this route is approximately 15h, flying east northeast at a heading of 74°.

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 Portugal 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 11:20 in Sines Airport, it's 19:20 in Singapore. With a 8-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 Singapore (SIN) to Sines Airport (SIE) follows a heading of 311° (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 Sines Airport (SIE) and Singapore Changi International Airport (SIN) detail pages, or use our flight duration calculator to compare other routes.