The flight distance from Cluj-Napoca International Airport (CLJ) in Cluj-Napoca, Romania to Chicago O'Hare International Airport (ORD) in Chicago, United States is 8,065 kilometers (5,012 miles / 4,355 nautical miles). The estimated flight time for this route is approximately 10h, flying northwest at a heading of 314°.

This is a long-haul route typically operated by wide-body aircraft such as the Boeing 777 or Airbus A350. Full meal service, in-flight entertainment, and comfort amenities are standard.

This is an international route connecting Romania with United States. It is an intercontinental flight between Europe and North America. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 03:10 in Cluj-Napoca, it's 19:10 in Chicago. With a 8-hour time difference, travelers should plan for significant jet lag. It typically takes one day per hour of time difference to fully adjust.

The return flight from Chicago (ORD) to Cluj-Napoca (CLJ) follows a heading of 42° (northeast). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

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