The flight distance from Chicago O'Hare International Airport (ORD) in Chicago, United States to Buol Airport (UOL) in Buol-Celebes Island, Indonesia is 14,385 kilometers (8,939 miles / 7,768 nautical miles). The estimated flight time for this route is approximately 18h, flying northwest at a heading of 321°.

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 Indonesia. It is an intercontinental flight between North America and Asia. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 06:55 in Chicago, it's 20:55 in Buol-Celebes Island. With a 14-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 Buol-Celebes Island (UOL) to Chicago (ORD) follows a heading of 28° (north 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 Chicago O'Hare International Airport (ORD) and Buol Airport (UOL) detail pages, or use our flight duration calculator to compare other routes.