# Distance from Bangkok (BKK) to Grenchen Airport (ZHI)

> 9,144 km · estimated flight time 12h · Ultra-long-haul route.

## Summary

- **Distance**: 9,144 km / 5,682 mi / 4,937 nm
- **Estimated flight time**: 12h
- **Heading**: 317° (northwest)
- **Return heading**: 78° (east northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (Thailand) → Switzerland
- **Intercontinental**: Asia → Europe
- **Time difference**: -5h (When it's 04:52 in Bangkok, it's 23:52 in Grenchen Airport)
- **Elevation difference**: 1,406 ft (ZHI is higher than BKK)

## Airports

### [Suvarnabhumi Airport (BKK)](https://www.flightduration.online/airport/bkk-bangkok-suvarnabhumi-airport/1ef266df-f511-6042-a32f-06bb2780ed98)

- City: Bangkok, Thailand
- ICAO: VTBS
- Timezone: Asia/Bangkok
- Coordinates: 13.680000, 100.750000
- Elevation: 5 ft

### [Grenchen Airport (ZHI)](https://www.flightduration.online/airport/zhi-grenchen-airport/1ef266df-57d3-6d48-a5f9-06bb2780ed98)

- City: Grenchen Airport, Switzerland
- ICAO: LSZG
- Timezone: Europe/Zurich
- Coordinates: 47.180000, 7.420000
- Elevation: 1,411 ft

## Route notes

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.

Time-zone information: When it's 04:52 in Bangkok, it's 23:52 in Grenchen Airport.
The 5-hour time difference may cause some jet lag.

## Related

- [Suvarnabhumi Airport (BKK)](https://www.flightduration.online/airport/bkk-bangkok-suvarnabhumi-airport/1ef266df-f511-6042-a32f-06bb2780ed98)
- [Grenchen Airport (ZHI)](https://www.flightduration.online/airport/zhi-grenchen-airport/1ef266df-57d3-6d48-a5f9-06bb2780ed98)
- [Flight duration calculator](/#calculator)