The flight distance from Noi Bai International Airport (HAN) in Hanoi, Vietnam to Okondja Airport (OKN) in Okondja, Gabon is 10,256 kilometers (6,373 miles / 5,538 nautical miles). The estimated flight time for this route is approximately 13h, flying west at a heading of 270°.

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 Gabon. It is an intercontinental flight between Asia and Africa. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 21:57 in Hanoi, it's 15:57 in Okondja. With a 6-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 1,286 feet between the two airports. Okondja Airport sits higher than Noi Bai International Airport.

The return flight from Okondja (OKN) to Hanoi (HAN) follows a heading of 69° (east 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 Noi Bai International Airport (HAN) and Okondja Airport (OKN) detail pages, or use our flight duration calculator to compare other routes.