# Distance from Masslo (MZX) to Seattle (SEA)

> 13,771 km · estimated flight time 17h · Ultra-long-haul route.

## Summary

- **Distance**: 13,771 km / 8,557 mi / 7,436 nm
- **Estimated flight time**: 17h
- **Heading**: 345° (north northwest)
- **Return heading**: 22° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (Ethiopia) → United States
- **Intercontinental**: Africa → North America
- **Time difference**: -10h (When it's 05:58 in Masslo, it's 19:58 in Seattle)
- **Elevation difference**: 3,748 ft (SEA is lower than MZX)

## Airports

### [Masslo Airport (MZX)](https://www.flightduration.online/airport/mzx-masslo-masslo-airport/1ef266de-ea4d-64e0-a65a-06bb2780ed98)

- City: Masslo, Ethiopia
- ICAO: HAML
- Timezone: Africa/Addis_Ababa
- Coordinates: 6.410000, 39.720000
- Elevation: 4,180 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 05:58 in Masslo, it's 19:58 in Seattle.
With a 10-hour time difference, expect significant jet lag.

## Related

- [Masslo Airport (MZX)](https://www.flightduration.online/airport/mzx-masslo-masslo-airport/1ef266de-ea4d-64e0-a65a-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)