# Distance from Gascoyne Junction Airport (GSC) to Seattle (SEA)

> 14,440 km · estimated flight time 18h · Ultra-long-haul route.

## Summary

- **Distance**: 14,440 km / 8,973 mi / 7,797 nm
- **Estimated flight time**: 18h
- **Heading**: 48° (northeast)
- **Return heading**: 275° (west)
- **Classification**: Ultra-long-haul
- **Type**: International (Australia) → United States
- **Intercontinental**: Oceania → North America
- **Time difference**: -15h (When it's 11:29 in Gascoyne Junction Airport, it's 20:29 in Seattle)
- **Elevation difference**: 432 ft (SEA is higher than GSC)

## Airports

### [Gascoyne Junction Airport (GSC)](https://www.flightduration.online/airport/gsc-gascoyne-junction-airport/1ef266e0-0d6b-6b7e-a7fa-06bb2780ed98)

- City: Gascoyne Junction Airport, Australia
- ICAO: YGSC
- Timezone: Australia/Perth
- Coordinates: -25.050000, 115.200000
- Elevation: 0 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 11:29 in Gascoyne Junction Airport, it's 20:29 in Seattle.
With a 15-hour time difference, expect significant jet lag.

## Related

- [Gascoyne Junction Airport (GSC)](https://www.flightduration.online/airport/gsc-gascoyne-junction-airport/1ef266e0-0d6b-6b7e-a7fa-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)