# Distance from Sihanukville (KOS) to London (LHR)

> 10,043 km · estimated flight time 13h · Ultra-long-haul route.

## Summary

- **Distance**: 10,043 km / 6,240 mi / 5,423 nm
- **Estimated flight time**: 13h
- **Heading**: 323° (northwest)
- **Return heading**: 72° (east northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (Cambodia) → United Kingdom
- **Intercontinental**: Asia → Europe
- **Time difference**: -6h (When it's 12:45 in Sihanukville, it's 06:45 in London)
- **Elevation difference**: 50 ft (LHR is higher than KOS)

## Airports

### [Sihanoukville International Airport (KOS)](https://www.flightduration.online/airport/kos-sihanukville-sihanoukville-international-airport/1ef266df-efc0-6d7c-8334-06bb2780ed98)

- City: Sihanukville, Cambodia
- ICAO: VDSV
- Timezone: Asia/Phnom_Penh
- Coordinates: 10.580000, 103.640000
- Elevation: 33 ft

### [London Heathrow Airport (LHR)](https://www.flightduration.online/airport/lhr-london-london-heathrow-airport/1ef266de-c45a-6b7a-a3bf-06bb2780ed98)

- City: London, United Kingdom
- ICAO: EGLL
- Timezone: Europe/London
- Coordinates: 51.470000, -0.460000
- Elevation: 83 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 12:45 in Sihanukville, it's 06:45 in London.
With a 6-hour time difference, expect significant jet lag.

## Related

- [Sihanoukville International Airport (KOS)](https://www.flightduration.online/airport/kos-sihanukville-sihanoukville-international-airport/1ef266df-efc0-6d7c-8334-06bb2780ed98)
- [London Heathrow Airport (LHR)](https://www.flightduration.online/airport/lhr-london-london-heathrow-airport/1ef266de-c45a-6b7a-a3bf-06bb2780ed98)
- [Flight duration calculator](/#calculator)