# Distance from Seattle (SEA) to Teresina (THE)

> 9,638 km · estimated flight time 12h · Ultra-long-haul route.

## Summary

- **Distance**: 9,638 km / 5,989 mi / 5,204 nm
- **Estimated flight time**: 12h
- **Heading**: 101° (east)
- **Return heading**: 318° (northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Brazil
- **Intercontinental**: North America → South America
- **Time difference**: +4h (When it's 13:34 in Seattle, it's 17:34 in Teresina)
- **Elevation difference**: 213 ft (THE is lower than SEA)

## Airports

### [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

### [Senador Petronio Portela Airport (THE)](https://www.flightduration.online/airport/the-teresina-senador-petronio-portela-airport/1ef266df-95c7-6c3a-8abb-06bb2780ed98)

- City: Teresina, Brazil
- ICAO: SBTE
- Timezone: America/Fortaleza
- Coordinates: -5.060000, -42.820000
- Elevation: 219 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 13:34 in Seattle, it's 17:34 in Teresina.
The 4-hour time difference may cause some jet lag.

## Related

- [Seattle-Tacoma International Airport (SEA)](https://www.flightduration.online/airport/sea-seattle-seattle-tacoma-international-airport/1ef266df-37e8-64a2-a4f1-06bb2780ed98)
- [Senador Petronio Portela Airport (THE)](https://www.flightduration.online/airport/the-teresina-senador-petronio-portela-airport/1ef266df-95c7-6c3a-8abb-06bb2780ed98)
- [Flight duration calculator](/#calculator)