The flight distance from Noi Bai International Airport (HAN) in Hanoi, Vietnam to Crater Lake/Klamath Regional Airport (LMT) in Klamath Falls, United States is 11,444 kilometers (7,111 miles / 6,179 nautical miles). The estimated flight time for this route is approximately 14h, flying northeast at a heading of 34°.

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 00:09 in Hanoi, it's 09:09 in Klamath Falls. 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 4,056 feet between the two airports. Crater Lake/Klamath Regional Airport sits higher than Noi Bai International Airport.

The return flight from Klamath Falls (LMT) to Hanoi (HAN) follows a heading of 315° (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 Crater Lake/Klamath Regional Airport (LMT) detail pages, or use our flight duration calculator to compare other routes.