The flight distance from Chek Lap Kok International Airport (HKG) in Hong Kong, Hong Kong to Ilopango International Airport (ILS) in San Salvador, El Salvador is 15,289 kilometers (9,500 miles / 8,255 nautical miles). The estimated flight time for this route is approximately 19h, flying northeast at a heading of 34°.

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 Hong Kong with El Salvador. 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 01:10 in Hong Kong, it's 11:10 in San Salvador. 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.

There is a significant elevation difference of 1,993 feet between the two airports. Ilopango International Airport sits higher than Chek Lap Kok International Airport.

The return flight from San Salvador (ILS) to Hong Kong (HKG) follows a heading of 328° (north 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 Chek Lap Kok International Airport (HKG) and Ilopango International Airport (ILS) detail pages, or use our flight duration calculator to compare other routes.