The flight distance from Sydney Kingsford Smith International Airport (SYD) in Sydney, Australia to Summit Airport (UMM) in Summit, United States is 12,023 kilometers (7,471 miles / 6,492 nautical miles). The estimated flight time for this route is approximately 15h, flying north northeast at a heading of 24°.

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

Time zone information: When it's 23:57 in Sydney, it's 03:57 in Summit. With a 20-hour time difference, travelers should plan for significant jet lag. It typically takes one day per hour of time difference to fully adjust.

There is a significant elevation difference of 2,388 feet between the two airports. Summit Airport sits higher than Sydney Kingsford Smith International Airport.

The return flight from Summit (UMM) to Sydney (SYD) follows a heading of 229° (southwest). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Sydney Kingsford Smith International Airport (SYD) and Summit Airport (UMM) detail pages, or use our flight duration calculator to compare other routes.