# Distance from Seattle (SEA) to Tchien (THC)

> 11,275 km · estimated flight time 14h · Ultra-long-haul route.

## Summary

- **Distance**: 11,275 km / 7,006 mi / 6,088 nm
- **Estimated flight time**: 14h
- **Heading**: 68° (east northeast)
- **Return heading**: 321° (northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Liberia
- **Intercontinental**: North America → Africa
- **Time difference**: +7h (When it's 17:31 in Seattle, it's 00:31 in Tchien)
- **Elevation difference**: 358 ft (THC 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

### [Tchien Airport (THC)](https://www.flightduration.online/airport/thc-tchien-tchien-airport/1ef266de-e842-6330-a35d-06bb2780ed98)

- City: Tchien, Liberia
- ICAO: GLTN
- Timezone: Africa/Monrovia
- Coordinates: 6.050000, -8.140000
- Elevation: 790 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 17:31 in Seattle, it's 00:31 in Tchien.
With a 7-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)
- [Tchien Airport (THC)](https://www.flightduration.online/airport/thc-tchien-tchien-airport/1ef266de-e842-6330-a35d-06bb2780ed98)
- [Flight duration calculator](/#calculator)