# Distance from Bangkok (BKK) to Sion (SIR)

> 9,173 km · estimated flight time 12h · Ultra-long-haul route.

## Summary

- **Distance**: 9,173 km / 5,700 mi / 4,953 nm
- **Estimated flight time**: 12h
- **Heading**: 316° (northwest)
- **Return heading**: 78° (east northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (Thailand) → Switzerland
- **Intercontinental**: Asia → Europe
- **Time difference**: -5h (When it's 11:30 in Bangkok, it's 06:30 in Sion)
- **Elevation difference**: 1,580 ft (SIR 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

### [Sion Airport (SIR)](https://www.flightduration.online/airport/sir-sion-sion-airport/1ef266df-5741-6844-a33f-06bb2780ed98)

- City: Sion, Switzerland
- ICAO: LSGS
- Timezone: Europe/Zurich
- Coordinates: 46.220000, 7.330000
- Elevation: 1,585 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 11:30 in Bangkok, it's 06:30 in Sion.
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)
- [Sion Airport (SIR)](https://www.flightduration.online/airport/sir-sion-sion-airport/1ef266df-5741-6844-a33f-06bb2780ed98)
- [Flight duration calculator](/#calculator)