The flight distance from Ontario International Airport (ONT) in Ontario, United States to Zurich Airport (ZRH) in Zurich, Switzerland is 9,483 kilometers (5,892 miles / 5,120 nautical miles). The estimated flight time for this route is approximately 12h, flying north northeast at a heading of 33°.

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

Time zone information: When it's 22:25 in Ontario, it's 07:25 in Zurich. With a 9-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 Zurich (ZRH) to Ontario (ONT) follows a heading of 318° (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 Ontario International Airport (ONT) and Zurich Airport (ZRH) detail pages, or use our flight duration calculator to compare other routes.