# Distance from Grand-Santi (GSI) to Perth (PER)

> 16,780 km · estimated flight time 21h · Ultra-long-haul route.

## Summary

- **Distance**: 16,780 km / 10,426 mi / 9,060 nm
- **Estimated flight time**: 21h
- **Heading**: 163° (south southeast)
- **Return heading**: 200° (south southwest)
- **Classification**: Ultra-long-haul
- **Type**: International (GF) → Australia
- **Intercontinental**: South America → Oceania
- **Time difference**: +11h (When it's 11:57 in Grand-Santi, it's 22:57 in Perth)
- **Elevation difference**: 140 ft (PER is lower than GSI)

## Airports

### [Grand-Santi Airport (GSI)](https://www.flightduration.online/airport/gsi-grand-santi-grand-santi-airport/1ef266df-c2f6-65b2-9095-06bb2780ed98)

- City: Grand-Santi, GF
- ICAO: SOGS
- Timezone: America/Cayenne
- Coordinates: 4.290000, -54.370000
- Elevation: 207 ft

### [Perth International Airport (PER)](https://www.flightduration.online/airport/per-perth-perth-international-airport/1ef266e0-1765-627e-aa2d-06bb2780ed98)

- City: Perth, Australia
- ICAO: YPPH
- Timezone: Australia/Perth
- Coordinates: -31.940000, 115.970000
- Elevation: 67 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 11:57 in Grand-Santi, it's 22:57 in Perth.
With a 11-hour time difference, expect significant jet lag.

## Related

- [Grand-Santi Airport (GSI)](https://www.flightduration.online/airport/gsi-grand-santi-grand-santi-airport/1ef266df-c2f6-65b2-9095-06bb2780ed98)
- [Perth International Airport (PER)](https://www.flightduration.online/airport/per-perth-perth-international-airport/1ef266e0-1765-627e-aa2d-06bb2780ed98)
- [Flight duration calculator](/#calculator)