# Distance from Coolawanyah Airport (COY) to St Louis (STL)

> 16,739 km · estimated flight time 21h · Ultra-long-haul route.

## Summary

- **Distance**: 16,739 km / 10,401 mi / 9,038 nm
- **Estimated flight time**: 21h
- **Heading**: 48° (northeast)
- **Return heading**: 297° (west northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (Australia) → United States
- **Intercontinental**: Oceania → North America
- **Time difference**: -13h (When it's 16:08 in Coolawanyah Airport, it's 03:08 in St Louis)
- **Elevation difference**: 617 ft (STL is higher than COY)

## Airports

### [Coolawanyah Airport (COY)](https://www.flightduration.online/airport/coy-coolawanyah-airport/1ef266e0-0a15-6376-8a93-06bb2780ed98)

- City: Coolawanyah Airport, Australia
- ICAO: YCWY
- Timezone: Australia/Perth
- Coordinates: -21.780000, 117.800000
- Elevation: 0 ft

### [St Louis Lambert International Airport (STL)](https://www.flightduration.online/airport/stl-st-louis-st-louis-lambert-international-airport/1ef266df-39ab-67da-9abe-06bb2780ed98)

- City: St Louis, United States
- ICAO: KSTL
- Timezone: America/Chicago
- Coordinates: 38.750000, -90.370000
- Elevation: 617 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 16:08 in Coolawanyah Airport, it's 03:08 in St Louis.
With a 13-hour time difference, expect significant jet lag.

## Related

- [Coolawanyah Airport (COY)](https://www.flightduration.online/airport/coy-coolawanyah-airport/1ef266e0-0a15-6376-8a93-06bb2780ed98)
- [St Louis Lambert International Airport (STL)](https://www.flightduration.online/airport/stl-st-louis-st-louis-lambert-international-airport/1ef266df-39ab-67da-9abe-06bb2780ed98)
- [Flight duration calculator](/#calculator)