# Distance from Seoul (ICN) to Sao Tome (TMS)

> 12,558 km · estimated flight time 16h · Ultra-long-haul route.

## Summary

- **Distance**: 12,558 km / 7,803 mi / 6,781 nm
- **Estimated flight time**: 16h
- **Heading**: 289° (west northwest)
- **Return heading**: 48° (northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (South Korea) → São Tomé and Príncipe
- **Intercontinental**: Asia → Africa
- **Time difference**: -9h (When it's 19:10 in Seoul, it's 10:10 in Sao Tome)
- **Elevation difference**: 10 ft (TMS is higher than ICN)

## Airports

### [Incheon International Airport (ICN)](https://www.flightduration.online/airport/icn-seoul-incheon-international-airport/1ef266df-8e0e-6aac-85a0-06bb2780ed98)

- City: Seoul, South Korea
- ICAO: RKSI
- Timezone: Asia/Seoul
- Coordinates: 37.470000, 126.450000
- Elevation: 23 ft

### [Sao Tome International Airport (TMS)](https://www.flightduration.online/airport/tms-sao-tome-sao-tome-international-airport/1ef266de-dd85-69c4-ae5d-06bb2780ed98)

- City: Sao Tome, São Tomé and Príncipe
- ICAO: FPST
- Timezone: Africa/Sao_Tome
- Coordinates: 0.380000, 6.710000
- Elevation: 33 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 19:10 in Seoul, it's 10:10 in Sao Tome.
With a 9-hour time difference, expect significant jet lag.

## Related

- [Incheon International Airport (ICN)](https://www.flightduration.online/airport/icn-seoul-incheon-international-airport/1ef266df-8e0e-6aac-85a0-06bb2780ed98)
- [Sao Tome International Airport (TMS)](https://www.flightduration.online/airport/tms-sao-tome-sao-tome-international-airport/1ef266de-dd85-69c4-ae5d-06bb2780ed98)
- [Flight duration calculator](/#calculator)