The flight distance from Suvarnabhumi Airport (BKK) in Bangkok, Thailand to Grenchen Airport (ZHI) in Grenchen Airport, Switzerland is 9,144 kilometers (5,682 miles / 4,937 nautical miles). The estimated flight time for this route is approximately 12h, flying northwest at a heading of 317°.

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 Thailand 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 06:53 in Bangkok, it's 00:53 in Grenchen Airport. 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 1,406 feet between the two airports. Grenchen Airport sits higher than Suvarnabhumi Airport.

The return flight from Grenchen Airport (ZHI) to Bangkok (BKK) follows a heading of 78° (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 Suvarnabhumi Airport (BKK) and Grenchen Airport (ZHI) detail pages, or use our flight duration calculator to compare other routes.