The flight distance from Harry Reid International Airport (LAS) in Las Vegas, United States to Xiguan Airport (SIA) in Xi'an, China is 10,935 kilometers (6,795 miles / 5,904 nautical miles). The estimated flight time for this route is approximately 14h, flying northwest at a heading of 324°.

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 China. 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 20:36 in Las Vegas, it's 11:36 in Xi'an. With a 15-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 2,181 feet between the two airports. Xiguan Airport sits lower than Harry Reid International Airport.

The return flight from Xi'an (SIA) to Las Vegas (LAS) follows a heading of 35° (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 Harry Reid International Airport (LAS) and Xiguan Airport (SIA) detail pages, or use our flight duration calculator to compare other routes.