The flight distance from Chicago O'Hare International Airport (ORD) in Chicago, United States to Rio Mayo Airport (ROY) in Rio Mayo, Argentina is 9,906 kilometers (6,155 miles / 5,349 nautical miles). The estimated flight time for this route is approximately 13h, 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 13:46 in Chicago, it's 16:46 in Rio Mayo. The 3-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

There is a significant elevation difference of 1,104 feet between the two airports. Rio Mayo Airport sits higher than Chicago O'Hare International Airport.

The return flight from Rio Mayo (ROY) to Chicago (ORD) follows a heading of 347° (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 Rio Mayo Airport (ROY) detail pages, or use our flight duration calculator to compare other routes.