# Distance from Lord Howe Island (LDH) to Seattle (SEA)

> 11,760 km · estimated flight time 15h · Ultra-long-haul route.

## Summary

- **Distance**: 11,760 km / 7,307 mi / 6,350 nm
- **Estimated flight time**: 15h
- **Heading**: 44° (northeast)
- **Return heading**: 240° (west southwest)
- **Classification**: Ultra-long-haul
- **Type**: International (Australia) → United States
- **Intercontinental**: Oceania → North America
- **Time difference**: -17.5h (When it's 07:44 in Lord Howe Island, it's 14:14 in Seattle)
- **Elevation difference**: 427 ft (SEA is higher than LDH)

## Airports

### [Lord Howe Island Airport (LDH)](https://www.flightduration.online/airport/ldh-lord-howe-island-lord-howe-island-airport/1ef266e0-10d4-654a-ad97-06bb2780ed98)

- City: Lord Howe Island, Australia
- ICAO: YLHI
- Timezone: Australia/Lord_Howe
- Coordinates: -31.540000, 159.080000
- Elevation: 5 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 07:44 in Lord Howe Island, it's 14:14 in Seattle.
With a 17.5-hour time difference, expect significant jet lag.

## Related

- [Lord Howe Island Airport (LDH)](https://www.flightduration.online/airport/ldh-lord-howe-island-lord-howe-island-airport/1ef266e0-10d4-654a-ad97-06bb2780ed98)
- [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)