# Distance from Siena (SAY) to Sydney (SYD)

> 16,420 km · estimated flight time 20h · Ultra-long-haul route.

## Summary

- **Distance**: 16,420 km / 10,203 mi / 8,866 nm
- **Estimated flight time**: 20h
- **Heading**: 87° (east)
- **Return heading**: 299° (west northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (Italy) → Australia
- **Intercontinental**: Europe → Oceania
- **Time difference**: +8h (When it's 17:35 in Siena, it's 01:35 in Sydney)
- **Elevation difference**: 613 ft (SYD is lower than SAY)

## Airports

### [Siena / Ampugnano Airport (SAY)](https://www.flightduration.online/airport/say-siena-siena-ampugnano-airport/1ef266df-5127-6c2e-a7d4-06bb2780ed98)

- City: Siena, Italy
- ICAO: LIQS
- Timezone: Europe/Rome
- Coordinates: 43.260000, 11.260000
- Elevation: 634 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 17:35 in Siena, it's 01:35 in Sydney.
With a 8-hour time difference, expect significant jet lag.

## Related

- [Siena / Ampugnano Airport (SAY)](https://www.flightduration.online/airport/say-siena-siena-ampugnano-airport/1ef266df-5127-6c2e-a7d4-06bb2780ed98)
- [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)