The flight distance from Noi Bai International Airport (HAN) in Hanoi, Vietnam to Southwest Wyoming Regional Airport (RKS) in Rock Springs, United States is 12,162 kilometers (7,557 miles / 6,567 nautical miles). The estimated flight time for this route is approximately 15h, flying north northeast at a heading of 27°.

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

Time zone information: When it's 21:31 in Hanoi, it's 07:31 in Rock Springs. 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.

There is a significant elevation difference of 6,726 feet between the two airports. Southwest Wyoming Regional Airport sits higher than Noi Bai International Airport. Travelers arriving at the higher-elevation airport should be aware of potential altitude effects.

The return flight from Rock Springs (RKS) to Hanoi (HAN) follows a heading of 326° (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 Noi Bai International Airport (HAN) and Southwest Wyoming Regional Airport (RKS) detail pages, or use our flight duration calculator to compare other routes.