# Distance from Mafra (QMF) to Seattle (SEA)

> 10,916 km · estimated flight time 14h · Ultra-long-haul route.

## Summary

- **Distance**: 10,916 km / 6,783 mi / 5,894 nm
- **Estimated flight time**: 14h
- **Heading**: 319° (northwest)
- **Return heading**: 120° (east southeast)
- **Classification**: Ultra-long-haul
- **Type**: International (Brazil) → United States
- **Intercontinental**: South America → North America
- **Time difference**: -4h (When it's 22:06 in Mafra, it's 18:06 in Seattle)
- **Elevation difference**: 2,258 ft (SEA is lower than QMF)

## Airports

### [Mafra Airport (QMF)](https://www.flightduration.online/airport/qmf-mafra-mafra-airport/1ef266df-ca37-6c7c-90f6-06bb2780ed98)

- City: Mafra, Brazil
- ICAO: SSMF
- Timezone: America/Sao_Paulo
- Coordinates: -26.160000, -49.830000
- Elevation: 2,690 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 22:06 in Mafra, it's 18:06 in Seattle.
The 4-hour time difference may cause some jet lag.

## Related

- [Mafra Airport (QMF)](https://www.flightduration.online/airport/qmf-mafra-mafra-airport/1ef266df-ca37-6c7c-90f6-06bb2780ed98)
- [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)