The flight distance from Arenal Airport (FON) in La Fortuna/San Carlos, Costa Rica to Kuala Lumpur International Airport (KUL) in Kuala Lumpur, Malaysia is 18,385 kilometers (11,424 miles / 9,927 nautical miles). The estimated flight time for this route is approximately 23h, flying north northwest at a heading of 334°.

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 Costa Rica with Malaysia. It is an intercontinental flight between North America and Asia. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 01:21 in La Fortuna/San Carlos, it's 15:21 in Kuala Lumpur. 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 Kuala Lumpur (KUL) to La Fortuna/San Carlos (FON) follows a heading of 25° (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 Arenal Airport (FON) and Kuala Lumpur International Airport (KUL) detail pages, or use our flight duration calculator to compare other routes.