# Distance from Houston (HOU) to Sydney (SYD)

> 13,827 km · estimated flight time 17h · Ultra-long-haul route.

## Summary

- **Distance**: 13,827 km / 8,592 mi / 7,466 nm
- **Estimated flight time**: 17h
- **Heading**: 247° (west southwest)
- **Return heading**: 75° (east northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Australia
- **Intercontinental**: North America → Oceania
- **Time difference**: +15h (When it's 12:33 in Houston, it's 03:33 in Sydney)
- **Elevation difference**: 25 ft (SYD is lower than HOU)

## Airports

### [William P Hobby Airport (HOU)](https://www.flightduration.online/airport/hou-houston-william-p-hobby-airport/1ef266df-211f-6e6e-9c9b-06bb2780ed98)

- City: Houston, United States
- ICAO: KHOU
- Timezone: America/Chicago
- Coordinates: 29.650000, -95.280000
- Elevation: 46 ft

### [Sydney Kingsford Smith International Airport (SYD)](https://www.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 12:33 in Houston, it's 03:33 in Sydney.
With a 15-hour time difference, expect significant jet lag.

## Related

- [William P Hobby Airport (HOU)](https://www.flightduration.online/airport/hou-houston-william-p-hobby-airport/1ef266df-211f-6e6e-9c9b-06bb2780ed98)
- [Sydney Kingsford Smith International Airport (SYD)](https://www.flightduration.online/airport/syd-sydney-sydney-kingsford-smith-international-airport/1ef266e0-1982-6f84-a5a1-06bb2780ed98)
- [Flight duration calculator](/#calculator)