# Distance from Seoul (ICN) to Johnson City (JCY)

> 11,146 km · estimated flight time 14h · Ultra-long-haul route.

## Summary

- **Distance**: 11,146 km / 6,926 mi / 6,018 nm
- **Estimated flight time**: 14h
- **Heading**: 38° (northeast)
- **Return heading**: 325° (northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (South Korea) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -14h (When it's 16:10 in Seoul, it's 02:10 in Johnson City)
- **Elevation difference**: 1,492 ft (JCY 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

### [Lbj Ranch Airport (JCY)](https://www.flightduration.online/airport/jcy-johnson-city-lbj-ranch-airport/1ef266de-60e5-62a2-bba4-06bb2780ed98)

- City: Johnson City, United States
- ICAO: 0TE7
- Timezone: America/Chicago
- Coordinates: 30.250000, -98.620000
- Elevation: 1,515 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 16:10 in Seoul, it's 02:10 in Johnson City.
With a 14-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)
- [Lbj Ranch Airport (JCY)](https://www.flightduration.online/airport/jcy-johnson-city-lbj-ranch-airport/1ef266de-60e5-62a2-bba4-06bb2780ed98)
- [Flight duration calculator](/#calculator)