# Distance from Chiang Mai (CNX) to London (LHR)

> 9,015 km · estimated flight time 12h · Ultra-long-haul route.

## Summary

- **Distance**: 9,015 km / 5,602 mi / 4,868 nm
- **Estimated flight time**: 12h
- **Heading**: 322° (northwest)
- **Return heading**: 71° (east northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (Thailand) → United Kingdom
- **Intercontinental**: Asia → Europe
- **Time difference**: -6h (When it's 02:55 in Chiang Mai, it's 20:55 in London)
- **Elevation difference**: 953 ft (LHR is lower than CNX)

## Airports

### [Chiang Mai International Airport (CNX)](https://www.flightduration.online/airport/cnx-chiang-mai-chiang-mai-international-airport/1ef266df-f525-689e-9326-06bb2780ed98)

- City: Chiang Mai, Thailand
- ICAO: VTCC
- Timezone: Asia/Bangkok
- Coordinates: 18.770000, 98.960000
- Elevation: 1,036 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 02:55 in Chiang Mai, it's 20:55 in London.
With a 6-hour time difference, expect significant jet lag.

## Related

- [Chiang Mai International Airport (CNX)](https://www.flightduration.online/airport/cnx-chiang-mai-chiang-mai-international-airport/1ef266df-f525-689e-9326-06bb2780ed98)
- [London Heathrow Airport (LHR)](https://www.flightduration.online/airport/lhr-london-london-heathrow-airport/1ef266de-c45a-6b7a-a3bf-06bb2780ed98)
- [Flight duration calculator](/#calculator)