The flight distance from Grenoble-Isere Airport (GNB) in Grenoble/Saint-Geoirs, France to Noi Bai International Airport (HAN) in Hanoi, Vietnam is 9,123 kilometers (5,669 miles / 4,926 nautical miles). The estimated flight time for this route is approximately 12h, flying east northeast at a heading of 68°.

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

Time zone information: When it's 12:28 in Grenoble/Saint-Geoirs, it's 17:28 in Hanoi. The 5-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

There is a significant elevation difference of 1,263 feet between the two airports. Noi Bai International Airport sits lower than Grenoble-Isere Airport.

The return flight from Hanoi (HAN) to Grenoble/Saint-Geoirs (GNB) follows a heading of 316° (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 Grenoble-Isere Airport (GNB) and Noi Bai International Airport (HAN) detail pages, or use our flight duration calculator to compare other routes.