The flight distance from Chiang Mai International Airport (CNX) in Chiang Mai, Thailand to Nuevo Aeropuerto Internacional Mariscal Sucre (UIO) in Quito, Ecuador is 17,922 kilometers (11,136 miles / 9,677 nautical miles). The estimated flight time for this route is approximately 22h, flying north at a heading of 352°.

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

Time zone information: When it's 11:20 in Chiang Mai, it's 23:20 in Quito. 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.

There is a significant elevation difference of 8,164 feet between the two airports. Nuevo Aeropuerto Internacional Mariscal Sucre sits higher than Chiang Mai International Airport. Travelers arriving at the higher-elevation airport should be aware of potential altitude effects.

The return flight from Quito (UIO) to Chiang Mai (CNX) follows a heading of 8° (north). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Chiang Mai International Airport (CNX) and Nuevo Aeropuerto Internacional Mariscal Sucre (UIO) detail pages, or use our flight duration calculator to compare other routes.