# Distance from Seoul (ICN) to Secunda (ZEC)

> 12,365 km · estimated flight time 16h · Ultra-long-haul route.

## Summary

- **Distance**: 12,365 km / 7,683 mi / 6,676 nm
- **Estimated flight time**: 16h
- **Heading**: 252° (west southwest)
- **Return heading**: 58° (east northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (South Korea) → South Africa
- **Intercontinental**: Asia → Africa
- **Time difference**: -7h (When it's 23:17 in Seoul, it's 16:17 in Secunda)
- **Elevation difference**: 5,227 ft (ZEC 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

### [Secunda Airport (ZEC)](https://www.flightduration.online/airport/zec-secunda-secunda-airport/1ef266de-d45e-6422-b8c0-06bb2780ed98)

- City: Secunda, South Africa
- ICAO: FASC
- Timezone: Africa/Johannesburg
- Coordinates: -26.520000, 29.170000
- Elevation: 5,250 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 23:17 in Seoul, it's 16:17 in Secunda.
With a 7-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)
- [Secunda Airport (ZEC)](https://www.flightduration.online/airport/zec-secunda-secunda-airport/1ef266de-d45e-6422-b8c0-06bb2780ed98)
- [Flight duration calculator](/#calculator)