# Distance from Mount Gunson (GSN) to St Louis (STL)

> 15,664 km · estimated flight time 19h · Ultra-long-haul route.

## Summary

- **Distance**: 15,664 km / 9,733 mi / 8,458 nm
- **Estimated flight time**: 19h
- **Heading**: 66° (east northeast)
- **Return heading**: 266° (west)
- **Classification**: Ultra-long-haul
- **Type**: International (Australia) → United States
- **Intercontinental**: Oceania → North America
- **Time difference**: -14.5h (When it's 02:33 in Mount Gunson, it's 12:03 in St Louis)
- **Elevation difference**: 332 ft (STL is higher than GSN)

## Airports

### [Mount Gunson Airport (GSN)](https://www.flightduration.online/airport/gsn-mount-gunson-mount-gunson-airport/1ef266e0-12a4-68c0-88f3-06bb2780ed98)

- City: Mount Gunson, Australia
- ICAO: YMGN
- Timezone: Australia/Adelaide
- Coordinates: -31.460000, 137.170000
- Elevation: 285 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 02:33 in Mount Gunson, it's 12:03 in St Louis.
With a 14.5-hour time difference, expect significant jet lag.

## Related

- [Mount Gunson Airport (GSN)](https://www.flightduration.online/airport/gsn-mount-gunson-mount-gunson-airport/1ef266e0-12a4-68c0-88f3-06bb2780ed98)
- [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)