The flight distance from Kuala Lumpur International Airport (KUL) in Kuala Lumpur, Malaysia to Retalhuleu Airport (RER) in Retalhuleu, Guatemala is 17,592 kilometers (10,931 miles / 9,499 nautical miles). The estimated flight time for this route is approximately 22h, flying northeast at a heading of 37°.

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 Guatemala. 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 01:51 in Kuala Lumpur, it's 11:51 in Retalhuleu. With a 14-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 Retalhuleu (RER) to Kuala Lumpur (KUL) follows a heading of 321° (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 Kuala Lumpur International Airport (KUL) and Retalhuleu Airport (RER) detail pages, or use our flight duration calculator to compare other routes.