# Distance from Seoul (ICN) to Porto Alegre (QNS)

> 19,150 km · estimated flight time 24h · Ultra-long-haul route.

## Summary

- **Distance**: 19,150 km / 11,899 mi / 10,340 nm
- **Estimated flight time**: 24h
- **Heading**: 344° (north northwest)
- **Return heading**: 14° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (South Korea) → Brazil
- **Intercontinental**: Asia → South America
- **Time difference**: -12h (When it's 11:22 in Seoul, it's 23:22 in Porto Alegre)
- **Elevation difference**: 3 ft (QNS 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

### [Canoas Airport (QNS)](https://www.flightduration.online/airport/qns-porto-alegre-canoas-airport/1ef266df-9435-6fac-8a08-06bb2780ed98)

- City: Porto Alegre, Brazil
- ICAO: SBCO
- Timezone: America/Sao_Paulo
- Coordinates: -29.950000, -51.140000
- Elevation: 26 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 11:22 in Seoul, it's 23:22 in Porto Alegre.
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)
- [Canoas Airport (QNS)](https://www.flightduration.online/airport/qns-porto-alegre-canoas-airport/1ef266df-9435-6fac-8a08-06bb2780ed98)
- [Flight duration calculator](/#calculator)