# Distance from Cassilandia (CSS) to Seoul (ICN)

> 17,970 km · estimated flight time 22h · Ultra-long-haul route.

## Summary

- **Distance**: 17,970 km / 11,166 mi / 9,703 nm
- **Estimated flight time**: 22h
- **Heading**: 5° (north)
- **Return heading**: 354° (north)
- **Classification**: Ultra-long-haul
- **Type**: International (Brazil) → South Korea
- **Intercontinental**: South America → Asia
- **Time difference**: +13h (When it's 04:02 in Cassilandia, it's 17:02 in Seoul)
- **Elevation difference**: 1,545 ft (ICN is lower than CSS)

## Airports

### [Cassilandia Airport (CSS)](https://www.flightduration.online/airport/css-cassilandia-cassilandia-airport/1ef266df-c673-68fc-89f8-06bb2780ed98)

- City: Cassilandia, Brazil
- ICAO: SSCL
- Timezone: America/Campo_Grande
- Coordinates: -19.150000, -51.690000
- Elevation: 1,568 ft

### [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

## 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 04:02 in Cassilandia, it's 17:02 in Seoul.
With a 13-hour time difference, expect significant jet lag.

## Related

- [Cassilandia Airport (CSS)](https://www.flightduration.online/airport/css-cassilandia-cassilandia-airport/1ef266df-c673-68fc-89f8-06bb2780ed98)
- [Incheon International Airport (ICN)](https://www.flightduration.online/airport/icn-seoul-incheon-international-airport/1ef266df-8e0e-6aac-85a0-06bb2780ed98)
- [Flight duration calculator](/#calculator)