The flight distance from Kuala Lumpur International Airport (KUL) in Kuala Lumpur, Malaysia to Fernando Luis Ribas Dominicci Airport (SIG) in San Juan, United States is 17,305 kilometers (10,753 miles / 9,344 nautical miles). The estimated flight time for this route is approximately 21h, flying north northwest at a heading of 331°.

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 Malaysia 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 07:41 in Kuala Lumpur, it's 19:41 in San Juan. With a 12-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 San Juan (SIG) to Kuala Lumpur (KUL) follows a heading of 31° (north 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 Kuala Lumpur International Airport (KUL) and Fernando Luis Ribas Dominicci Airport (SIG) detail pages, or use our flight duration calculator to compare other routes.