# Distance from Seattle (SEA) to Tennant Creek (TCA)

> 12,604 km · estimated flight time 16h · Ultra-long-haul route.

## Summary

- **Distance**: 12,604 km / 7,831 mi / 6,805 nm
- **Estimated flight time**: 16h
- **Heading**: 266° (west)
- **Return heading**: 46° (northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Australia
- **Intercontinental**: North America → Oceania
- **Time difference**: +16.5h (When it's 14:57 in Seattle, it's 07:27 in Tennant Creek)
- **Elevation difference**: 804 ft (TCA is higher than SEA)

## Airports

### [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

### [Tennant Creek Airport (TCA)](https://www.flightduration.online/airport/tca-tennant-creek-tennant-creek-airport/1ef266e0-1ac1-6e04-9ea6-06bb2780ed98)

- City: Tennant Creek, Australia
- ICAO: YTNK
- Timezone: Australia/Darwin
- Coordinates: -19.630000, 134.180000
- Elevation: 1,236 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 14:57 in Seattle, it's 07:27 in Tennant Creek.
With a 16.5-hour time difference, expect significant jet lag.

## Related

- [Seattle-Tacoma International Airport (SEA)](https://www.flightduration.online/airport/sea-seattle-seattle-tacoma-international-airport/1ef266df-37e8-64a2-a4f1-06bb2780ed98)
- [Tennant Creek Airport (TCA)](https://www.flightduration.online/airport/tca-tennant-creek-tennant-creek-airport/1ef266e0-1ac1-6e04-9ea6-06bb2780ed98)
- [Flight duration calculator](/#calculator)