The flight distance from Washington Dulles International Airport (IAD) in Washington, United States to Jose De San Martin Airport (JSM) in Chubut, Argentina is 9,251 kilometers (5,748 miles / 4,995 nautical miles). The estimated flight time for this route is approximately 12h, flying south at a heading of 175°.

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 14:20 in Washington, it's 16:20 in Chubut.

There is a significant elevation difference of 2,095 feet between the two airports. Jose De San Martin Airport sits higher than Washington Dulles International Airport.

The return flight from Chubut (JSM) to Washington (IAD) follows a heading of 354° (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 Washington Dulles International Airport (IAD) and Jose De San Martin Airport (JSM) detail pages, or use our flight duration calculator to compare other routes.