# Distance from Nioki (NIO) to Seattle (SEA)

> 13,736 km · estimated flight time 17h · Ultra-long-haul route.

## Summary

- **Distance**: 13,736 km / 8,535 mi / 7,417 nm
- **Estimated flight time**: 17h
- **Heading**: 329° (north northwest)
- **Return heading**: 50° (northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (DR Congo) → United States
- **Intercontinental**: Africa → North America
- **Time difference**: -8h (When it's 05:27 in Nioki, it's 21:27 in Seattle)
- **Elevation difference**: 611 ft (SEA is lower than NIO)

## Airports

### [Nioki Airport (NIO)](https://www.flightduration.online/airport/nio-nioki-nioki-airport/1ef266de-e233-6a84-b12a-06bb2780ed98)

- City: Nioki, DR Congo
- ICAO: FZBI
- Timezone: Africa/Kinshasa
- Coordinates: -2.720000, 17.680000
- Elevation: 1,043 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 05:27 in Nioki, it's 21:27 in Seattle.
With a 8-hour time difference, expect significant jet lag.

## Related

- [Nioki Airport (NIO)](https://www.flightduration.online/airport/nio-nioki-nioki-airport/1ef266de-e233-6a84-b12a-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)