The flight distance from Costa Marques Airport (CQS) in Costa Marques, Brazil to Tribhuvan International Airport (KTM) in Kathmandu, Nepal is 16,430 kilometers (10,209 miles / 8,872 nautical miles). The estimated flight time for this route is approximately 20h, flying east northeast at a heading of 57°.

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 Brazil with Nepal. It is an intercontinental flight between South America and Asia. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 17:31 in Costa Marques, it's 03:16 in Kathmandu. With a 9.75-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 3,835 feet between the two airports. Tribhuvan International Airport sits higher than Costa Marques Airport.

The return flight from Kathmandu (KTM) to Costa Marques (CQS) follows a heading of 292° (west 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 Costa Marques Airport (CQS) and Tribhuvan International Airport (KTM) detail pages, or use our flight duration calculator to compare other routes.