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

> 13,844 km · estimated flight time 17h · Ultra-long-haul route.

## Summary

- **Distance**: 13,844 km / 8,602 mi / 7,475 nm
- **Estimated flight time**: 17h
- **Heading**: 247° (west southwest)
- **Return heading**: 74° (east northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Australia
- **Intercontinental**: North America → Oceania
- **Time difference**: +15h (When it's 22:21 in Houston, it's 13:21 in Sydney)
- **Elevation difference**: 224 ft (SYD is lower than CXO)

## Airports

### [Conroe/North Houston Regional Airport (CXO)](https://www.flightduration.online/airport/cxo-houston-conroenorth-houston-regional-airport/1ef266df-159e-67fc-ab71-06bb2780ed98)

- City: Houston, United States
- ICAO: KCXO
- Timezone: America/Chicago
- Coordinates: 30.350000, -95.420000
- Elevation: 245 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 22:21 in Houston, it's 13:21 in Sydney.
With a 15-hour time difference, expect significant jet lag.

## Related

- [Conroe/North Houston Regional Airport (CXO)](https://www.flightduration.online/airport/cxo-houston-conroenorth-houston-regional-airport/1ef266df-159e-67fc-ab71-06bb2780ed98)
- [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)