# Distance from Christchurch (CHC) to Semnan (SNX)

> 14,831 km · estimated flight time 18h · Ultra-long-haul route.

## Summary

- **Distance**: 14,831 km / 9,216 mi / 8,008 nm
- **Estimated flight time**: 18h
- **Heading**: 282° (west northwest)
- **Return heading**: 119° (east southeast)
- **Classification**: Ultra-long-haul
- **Type**: International (New Zealand) → Iran
- **Intercontinental**: Oceania → Asia
- **Time difference**: -8.5h (When it's 15:30 in Christchurch, it's 07:00 in Semnan)
- **Elevation difference**: 3,542 ft (SNX is higher than CHC)

## Airports

### [Christchurch International Airport (CHC)](https://www.flightduration.online/airport/chc-christchurch-christchurch-international-airport/1ef266df-7661-64f4-a788-06bb2780ed98)

- City: Christchurch, New Zealand
- ICAO: NZCH
- Timezone: Pacific/Auckland
- Coordinates: -43.490000, 172.530000
- Elevation: 123 ft

### [Semnan Airport (SNX)](https://www.flightduration.online/airport/snx-semnan-semnan-airport/1ef266df-7db1-6b28-8f31-06bb2780ed98)

- City: Semnan, Iran
- ICAO: OIIS
- Timezone: Asia/Tehran
- Coordinates: 35.590000, 53.500000
- Elevation: 3,665 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 15:30 in Christchurch, it's 07:00 in Semnan.
With a 8.5-hour time difference, expect significant jet lag.

## Related

- [Christchurch International Airport (CHC)](https://www.flightduration.online/airport/chc-christchurch-christchurch-international-airport/1ef266df-7661-64f4-a788-06bb2780ed98)
- [Semnan Airport (SNX)](https://www.flightduration.online/airport/snx-semnan-semnan-airport/1ef266df-7db1-6b28-8f31-06bb2780ed98)
- [Flight duration calculator](/#calculator)