# Distance from Redstone Arsnl Huntsville (HUA) to Sydney (SYD)

> 14,777 km · estimated flight time 18h · Ultra-long-haul route.

## Summary

- **Distance**: 14,777 km / 9,182 mi / 7,979 nm
- **Estimated flight time**: 18h
- **Heading**: 253° (west southwest)
- **Return heading**: 72° (east northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Australia
- **Intercontinental**: North America → Oceania
- **Time difference**: +15h (When it's 21:21 in Redstone Arsnl Huntsville, it's 12:21 in Sydney)
- **Elevation difference**: 664 ft (SYD is lower than HUA)

## Airports

### [Redstone Army Air Field (HUA)](https://flightduration.online/airport/hua-redstone-arsnl-huntsville-redstone-army-air-field/1ef266df-21a4-65ce-b43a-06bb2780ed98)

- City: Redstone Arsnl Huntsville, United States
- ICAO: KHUA
- Timezone: America/Chicago
- Coordinates: 34.680000, -86.680000
- Elevation: 685 ft

### [Sydney Kingsford Smith International Airport (SYD)](https://flightduration.online/airport/syd-sydney-sydney-kingsford-smith-international-airport/1ef266e0-1982-6f84-a5a1-06bb2780ed98)

- City: Sydney, Australia
- ICAO: YSSY
- Timezone: Australia/Sydney
- Coordinates: -33.950000, 151.180000
- Elevation: 21 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 21:21 in Redstone Arsnl Huntsville, it's 12:21 in Sydney.
With a 15-hour time difference, expect significant jet lag.

## Related

- [Redstone Army Air Field (HUA)](https://flightduration.online/airport/hua-redstone-arsnl-huntsville-redstone-army-air-field/1ef266df-21a4-65ce-b43a-06bb2780ed98)
- [Sydney Kingsford Smith International Airport (SYD)](https://flightduration.online/airport/syd-sydney-sydney-kingsford-smith-international-airport/1ef266e0-1982-6f84-a5a1-06bb2780ed98)
- [Flight duration calculator](/#calculator)