# Distance from Seattle (SEA) to Thakhek (THK)

> 11,413 km · estimated flight time 14h · Ultra-long-haul route.

## Summary

- **Distance**: 11,413 km / 7,092 mi / 6,163 nm
- **Estimated flight time**: 14h
- **Heading**: 314° (northwest)
- **Return heading**: 31° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Laos
- **Intercontinental**: North America → Asia
- **Time difference**: +14h (When it's 05:05 in Seattle, it's 19:05 in Thakhek)
- **Elevation difference**: 17 ft (THK 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

### [Thakhek Airport (THK)](https://www.flightduration.online/airport/thk-thakhek-thakhek-airport/1ef266df-f29f-6052-be01-06bb2780ed98)

- City: Thakhek, Laos
- ICAO: VLTK
- Timezone: Asia/Bangkok
- Coordinates: 17.400000, 104.800000
- Elevation: 449 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 05:05 in Seattle, it's 19:05 in Thakhek.
With a 14-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)
- [Thakhek Airport (THK)](https://www.flightduration.online/airport/thk-thakhek-thakhek-airport/1ef266df-f29f-6052-be01-06bb2780ed98)
- [Flight duration calculator](/#calculator)