# Distance from Mount Holly (LLY) to Perth (PER)

> 18,698 km · estimated flight time 23h · Ultra-long-haul route.

## Summary

- **Distance**: 18,698 km / 11,618 mi / 10,096 nm
- **Estimated flight time**: 23h
- **Heading**: 309° (northwest)
- **Return heading**: 45° (northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Australia
- **Intercontinental**: North America → Oceania
- **Time difference**: +12h (When it's 10:16 in Mount Holly, it's 22:16 in Perth)
- **Elevation difference**: 14 ft (PER is higher than LLY)

## Airports

### [South Jersey Regional Airport (LLY)](https://www.flightduration.online/airport/lly-mount-holly-south-jersey-regional-airport/1ef266df-3e5d-69a4-8b0e-06bb2780ed98)

- City: Mount Holly, United States
- ICAO: KVAY
- Timezone: America/New_York
- Coordinates: 39.940000, -74.850000
- Elevation: 53 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 10:16 in Mount Holly, it's 22:16 in Perth.
With a 12-hour time difference, expect significant jet lag.

## Related

- [South Jersey Regional Airport (LLY)](https://www.flightduration.online/airport/lly-mount-holly-south-jersey-regional-airport/1ef266df-3e5d-69a4-8b0e-06bb2780ed98)
- [Perth International Airport (PER)](https://www.flightduration.online/airport/per-perth-perth-international-airport/1ef266e0-1765-627e-aa2d-06bb2780ed98)
- [Flight duration calculator](/#calculator)