# Distance from Honolulu (HNL) to Smithton Airport (SIO)

> 9,074 km · estimated flight time 12h · Ultra-long-haul route.

## Summary

- **Distance**: 9,074 km / 5,638 mi / 4,899 nm
- **Estimated flight time**: 12h
- **Heading**: 220° (southwest)
- **Return heading**: 52° (northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Australia
- **Intercontinental**: North America → Oceania
- **Time difference**: +20h (When it's 19:21 in Honolulu, it's 15:21 in Smithton Airport)
- **Elevation difference**: 18 ft (SIO is higher than HNL)

## Airports

### [Daniel K Inouye International Airport (HNL)](https://www.flightduration.online/airport/hnl-honolulu-daniel-k-inouye-international-airport/1ef266df-8953-6d78-a54a-06bb2780ed98)

- City: Honolulu, United States
- ICAO: PHNL
- Timezone: Pacific/Honolulu
- Coordinates: 21.320000, -157.920000
- Elevation: 13 ft

### [Smithton Airport (SIO)](https://www.flightduration.online/airport/sio-smithton-airport/1ef266e0-1932-6eee-8e2b-06bb2780ed98)

- City: Smithton Airport, Australia
- ICAO: YSMI
- Timezone: Australia/Hobart
- Coordinates: -40.840000, 145.080000
- Elevation: 31 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 19:21 in Honolulu, it's 15:21 in Smithton Airport.
With a 20-hour time difference, expect significant jet lag.

## Related

- [Daniel K Inouye International Airport (HNL)](https://www.flightduration.online/airport/hnl-honolulu-daniel-k-inouye-international-airport/1ef266df-8953-6d78-a54a-06bb2780ed98)
- [Smithton Airport (SIO)](https://www.flightduration.online/airport/sio-smithton-airport/1ef266e0-1932-6eee-8e2b-06bb2780ed98)
- [Flight duration calculator](/#calculator)