The flight distance from Noi Bai International Airport (HAN) in Hanoi, Vietnam to Sion Airport (SIR) in Sion, Switzerland is 8,944 kilometers (5,557 miles / 4,829 nautical miles). The estimated flight time for this route is approximately 12h, flying northwest at a heading of 316°.

This is a long-haul route typically operated by wide-body aircraft such as the Boeing 777 or Airbus A350. Full meal service, in-flight entertainment, and comfort amenities are standard.

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

Time zone information: When it's 23:24 in Hanoi, it's 17:24 in Sion. 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 1,546 feet between the two airports. Sion Airport sits higher than Noi Bai International Airport.

The return flight from Sion (SIR) 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 Sion Airport (SIR) detail pages, or use our flight duration calculator to compare other routes.