# Distance from Seoul (ICN) to Posadas (PSS)

> 18,872 km · estimated flight time 23h · Ultra-long-haul route.

## Summary

- **Distance**: 18,872 km / 11,726 mi / 10,190 nm
- **Estimated flight time**: 23h
- **Heading**: 12° (north northeast)
- **Return heading**: 349° (north)
- **Classification**: Ultra-long-haul
- **Type**: International (South Korea) → Argentina
- **Intercontinental**: Asia → South America
- **Time difference**: -12h (When it's 13:35 in Seoul, it's 01:35 in Posadas)
- **Elevation difference**: 407 ft (PSS 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

### [Libertador Gral D Jose De San Martin Airport (PSS)](https://www.flightduration.online/airport/pss-posadas-libertador-gral-d-jose-de-san-martin-airport/1ef266df-9250-634a-8c8a-06bb2780ed98)

- City: Posadas, Argentina
- ICAO: SARP
- Timezone: America/Argentina/Cordoba
- Coordinates: -27.390000, -55.970000
- Elevation: 430 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 13:35 in Seoul, it's 01:35 in Posadas.
With a 12-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)
- [Libertador Gral D Jose De San Martin Airport (PSS)](https://www.flightduration.online/airport/pss-posadas-libertador-gral-d-jose-de-san-martin-airport/1ef266df-9250-634a-8c8a-06bb2780ed98)
- [Flight duration calculator](/#calculator)