The flight distance from Portland International Airport (PDX) in Portland, United States to Las Termas Airport (RHD) in Rio Hondo, Argentina is 9,993 kilometers (6,209 miles / 5,396 nautical miles). The estimated flight time for this route is approximately 13h, flying southeast at a heading of 131°.

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 23:20 in Portland, it's 04:20 in Rio Hondo. The 5-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

The return flight from Rio Hondo (RHD) to Portland (PDX) follows a heading of 324° (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 Portland International Airport (PDX) and Las Termas Airport (RHD) detail pages, or use our flight duration calculator to compare other routes.