# Distance from Seattle (SEA) to Seronera (SEU)

> 14,550 km · estimated flight time 18h · Ultra-long-haul route.

## Summary

- **Distance**: 14,550 km / 9,041 mi / 7,856 nm
- **Estimated flight time**: 18h
- **Heading**: 31° (north northeast)
- **Return heading**: 340° (north northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Tanzania
- **Intercontinental**: North America → Africa
- **Time difference**: +10h (When it's 20:15 in Seattle, it's 06:15 in Seronera)
- **Elevation difference**: 4,648 ft (SEU is higher than SEA)

## Airports

### [Seattle-Tacoma International Airport (SEA)](https://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

### [Seronera Airport (SEU)](https://flightduration.online/airport/seu-seronera-seronera-airport/1ef266de-ef23-68b6-8fcf-06bb2780ed98)

- City: Seronera, Tanzania
- ICAO: HTSN
- Timezone: Africa/Dar_es_Salaam
- Coordinates: -2.460000, 34.820000
- Elevation: 5,080 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 20:15 in Seattle, it's 06:15 in Seronera.
With a 10-hour time difference, expect significant jet lag.

## Related

- [Seattle-Tacoma International Airport (SEA)](https://flightduration.online/airport/sea-seattle-seattle-tacoma-international-airport/1ef266df-37e8-64a2-a4f1-06bb2780ed98)
- [Seronera Airport (SEU)](https://flightduration.online/airport/seu-seronera-seronera-airport/1ef266de-ef23-68b6-8fcf-06bb2780ed98)
- [Flight duration calculator](/#calculator)