The flight distance from Seattle-Tacoma International Airport (SEA) in Seattle, United States to Domingo Faustino Sarmiento Airport (UAQ) in San Juan, Argentina is 10,302 kilometers (6,401 miles / 5,562 nautical miles). The estimated flight time for this route is approximately 13h, flying southeast at a heading of 136°.

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 Argentina. 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 10:35 in Seattle, it's 15:35 in San Juan. The 5-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

There is a significant elevation difference of 1,526 feet between the two airports. Domingo Faustino Sarmiento Airport sits higher than Seattle-Tacoma International Airport.

The return flight from San Juan (UAQ) to Seattle (SEA) 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 Seattle-Tacoma International Airport (SEA) and Domingo Faustino Sarmiento Airport (UAQ) detail pages, or use our flight duration calculator to compare other routes.