# Distance from Gamboma (GMM) to Seattle (SEA)

> 13,547 km · estimated flight time 17h · Ultra-long-haul route.

## Summary

- **Distance**: 13,547 km / 8,418 mi / 7,315 nm
- **Estimated flight time**: 17h
- **Heading**: 328° (north northwest)
- **Return heading**: 52° (northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (Congo) → United States
- **Intercontinental**: Africa → North America
- **Time difference**: -8h (When it's 02:51 in Gamboma, it's 18:51 in Seattle)
- **Elevation difference**: 1,077 ft (SEA is lower than GMM)

## Airports

### [Gamboma Airport (GMM)](https://www.flightduration.online/airport/gmm-gamboma-gamboma-airport/1ef266de-d68c-6690-9c4b-06bb2780ed98)

- City: Gamboma, Congo
- ICAO: FCOG
- Timezone: Africa/Brazzaville
- Coordinates: -1.830000, 15.890000
- Elevation: 1,509 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 02:51 in Gamboma, it's 18:51 in Seattle.
With a 8-hour time difference, expect significant jet lag.

## Related

- [Gamboma Airport (GMM)](https://www.flightduration.online/airport/gmm-gamboma-gamboma-airport/1ef266de-d68c-6690-9c4b-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)