# Distance from Hamilton Island (HTI) to Seattle (SEA)

> 11,567 km · estimated flight time 15h · Ultra-long-haul route.

## Summary

- **Distance**: 11,567 km / 7,188 mi / 6,246 nm
- **Estimated flight time**: 15h
- **Heading**: 44° (northeast)
- **Return heading**: 255° (west southwest)
- **Classification**: Ultra-long-haul
- **Type**: International (Australia) → United States
- **Intercontinental**: Oceania → North America
- **Time difference**: -17h (When it's 19:51 in Hamilton Island, it's 02:51 in Seattle)
- **Elevation difference**: 417 ft (SEA is higher than HTI)

## Airports

### [Hamilton Island Airport (HTI)](https://www.flightduration.online/airport/hti-hamilton-island-hamilton-island-airport/1ef266e0-05f6-6786-af5c-06bb2780ed98)

- City: Hamilton Island, Australia
- ICAO: YBHM
- Timezone: Australia/Lindeman
- Coordinates: -20.360000, 148.950000
- Elevation: 15 ft

### [Seattle-Tacoma International Airport (SEA)](https://www.flightduration.online/airport/sea-seattle-seattle-tacoma-international-airport/1ef266df-37e8-64a2-a4f1-06bb2780ed98)

- City: Seattle, United States
- ICAO: KSEA
- Timezone: America/Los_Angeles
- Coordinates: 47.450000, -122.310000
- Elevation: 432 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 19:51 in Hamilton Island, it's 02:51 in Seattle.
With a 17-hour time difference, expect significant jet lag.

## Related

- [Hamilton Island Airport (HTI)](https://www.flightduration.online/airport/hti-hamilton-island-hamilton-island-airport/1ef266e0-05f6-6786-af5c-06bb2780ed98)
- [Seattle-Tacoma International Airport (SEA)](https://www.flightduration.online/airport/sea-seattle-seattle-tacoma-international-airport/1ef266df-37e8-64a2-a4f1-06bb2780ed98)
- [Flight duration calculator](/#calculator)