The flight distance from Harry Reid International Airport (LAS) in Las Vegas, United States to Osan Air Base (OSN) in Osan Air Base, South Korea is 9,662 kilometers (6,003 miles / 5,217 nautical miles). The estimated flight time for this route is approximately 12h, flying northwest at a heading of 315°.

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 South Korea. 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 00:23 in Las Vegas, it's 16:23 in Osan Air Base. With a 16-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 2,143 feet between the two airports. Osan Air Base sits lower than Harry Reid International Airport.

The return flight from Osan Air Base (OSN) to Las Vegas (LAS) follows a heading of 46° (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 Osan Air Base (OSN) detail pages, or use our flight duration calculator to compare other routes.