The flight distance from St Mary's Airport (KSM) in St Mary'S, United States to Comodoro Arturo Merino Benitez International Airport (SCL) in Santiago, Chile is 13,368 kilometers (8,306 miles / 7,218 nautical miles). The estimated flight time for this route is approximately 17h, flying east southeast at a heading of 105°.

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 United States with Chile. It is an intercontinental flight between North America and South America. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 12:21 in St Mary'S, it's 18:21 in Santiago. With a 6-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 1,241 feet between the two airports. Comodoro Arturo Merino Benitez International Airport sits higher than St Mary's Airport.

The return flight from Santiago (SCL) to St Mary'S (KSM) follows a heading of 327° (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 St Mary's Airport (KSM) and Comodoro Arturo Merino Benitez International Airport (SCL) detail pages, or use our flight duration calculator to compare other routes.