The flight distance from Necochea Airport (NEC) in Necochea, Argentina to Chicago O'Hare International Airport (ORD) in Chicago, United States is 9,418 kilometers (5,852 miles / 5,086 nautical miles). The estimated flight time for this route is approximately 12h, flying north northwest at a heading of 339°.

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 Argentina with United States. It is an intercontinental flight between South America and North America. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 07:57 in Necochea, it's 05:57 in Chicago.

The return flight from Chicago (ORD) to Necochea (NEC) follows a heading of 158° (south southeast). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Necochea Airport (NEC) and Chicago O'Hare International Airport (ORD) detail pages, or use our flight duration calculator to compare other routes.