The flight distance from Chicago O'Hare International Airport (ORD) in Chicago, United States to Hermes Quijada International Airport (RGA) in Rio Grande, Argentina is 10,821 kilometers (6,724 miles / 5,843 nautical miles). The estimated flight time for this route is approximately 14h, flying south southeast at a heading of 168°.

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 20:57 in Chicago, it's 23:57 in Rio Grande. The 3-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

The return flight from Rio Grande (RGA) to Chicago (ORD) follows a heading of 345° (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 Chicago O'Hare International Airport (ORD) and Hermes Quijada International Airport (RGA) detail pages, or use our flight duration calculator to compare other routes.