The flight distance from Seattle-Tacoma International Airport (SEA) in Seattle, United States to Nueva Hesperides International Airport (STY) in Salto, Uruguay is 10,865 kilometers (6,751 miles / 5,867 nautical miles). The estimated flight time for this route is approximately 14h, flying southeast at a heading of 129°.

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 Uruguay. 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 01:59 in Seattle, it's 06:59 in Salto. The 5-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

The return flight from Salto (STY) to Seattle (SEA) follows a heading of 322° (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 Seattle-Tacoma International Airport (SEA) and Nueva Hesperides International Airport (STY) detail pages, or use our flight duration calculator to compare other routes.