# Distance from Alton/St Louis (ALN) to Christchurch (CHC)

> 13,380 km · estimated flight time 17h · Ultra-long-haul route.

## Summary

- **Distance**: 13,380 km / 8,314 mi / 7,225 nm
- **Estimated flight time**: 17h
- **Heading**: 236° (west southwest)
- **Return heading**: 63° (east northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → New Zealand
- **Intercontinental**: North America → Oceania
- **Time difference**: +17h (When it's 10:05 in Alton/St Louis, it's 03:05 in Christchurch)
- **Elevation difference**: 421 ft (CHC is lower than ALN)

## Airports

### [St Louis Regional Airport (ALN)](https://www.flightduration.online/airport/aln-altonst-louis-st-louis-regional-airport/1ef266df-0e15-6d96-bfee-06bb2780ed98)

- City: Alton/St Louis, United States
- ICAO: KALN
- Timezone: America/Chicago
- Coordinates: 38.890000, -90.050000
- Elevation: 544 ft

### [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

## 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 10:05 in Alton/St Louis, it's 03:05 in Christchurch.
With a 17-hour time difference, expect significant jet lag.

## Related

- [St Louis Regional Airport (ALN)](https://www.flightduration.online/airport/aln-altonst-louis-st-louis-regional-airport/1ef266df-0e15-6d96-bfee-06bb2780ed98)
- [Christchurch International Airport (CHC)](https://www.flightduration.online/airport/chc-christchurch-christchurch-international-airport/1ef266df-7661-64f4-a788-06bb2780ed98)
- [Flight duration calculator](/#calculator)