# Distance from Adelaide (ADL) to Cahokia/St Louis (CPS)

> 15,710 km · estimated flight time 19h · Ultra-long-haul route.

## Summary

- **Distance**: 15,710 km / 9,761 mi / 8,482 nm
- **Estimated flight time**: 19h
- **Heading**: 70° (east northeast)
- **Return heading**: 260° (west)
- **Classification**: Ultra-long-haul
- **Type**: International (Australia) → United States
- **Intercontinental**: Oceania → North America
- **Time difference**: -14.5h (When it's 20:53 in Adelaide, it's 06:23 in Cahokia/St Louis)
- **Elevation difference**: 393 ft (CPS is higher than ADL)

## Airports

### [Adelaide International Airport (ADL)](https://www.flightduration.online/airport/adl-adelaide-adelaide-international-airport/1ef266e0-1682-610e-a772-06bb2780ed98)

- City: Adelaide, Australia
- ICAO: YPAD
- Timezone: Australia/Adelaide
- Coordinates: -34.950000, 138.530000
- Elevation: 20 ft

### [St Louis Downtown Airport (CPS)](https://www.flightduration.online/airport/cps-cahokiast-louis-st-louis-downtown-airport/1ef266df-14d9-6b50-a477-06bb2780ed98)

- City: Cahokia/St Louis, United States
- ICAO: KCPS
- Timezone: America/Chicago
- Coordinates: 38.570000, -90.160000
- Elevation: 413 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 20:53 in Adelaide, it's 06:23 in Cahokia/St Louis.
With a 14.5-hour time difference, expect significant jet lag.

## Related

- [Adelaide International Airport (ADL)](https://www.flightduration.online/airport/adl-adelaide-adelaide-international-airport/1ef266e0-1682-610e-a772-06bb2780ed98)
- [St Louis Downtown Airport (CPS)](https://www.flightduration.online/airport/cps-cahokiast-louis-st-louis-downtown-airport/1ef266df-14d9-6b50-a477-06bb2780ed98)
- [Flight duration calculator](/#calculator)