# Distance from Flat (FLT) to Seoul (ICN)

> 5,658 km · estimated flight time 8h · Long-haul route.

## Summary

- **Distance**: 5,658 km / 3,516 mi / 3,055 nm
- **Estimated flight time**: 8h
- **Heading**: 278° (west)
- **Return heading**: 35° (northeast)
- **Classification**: Long-haul
- **Type**: International (United States) → South Korea
- **Intercontinental**: North America → Asia
- **Time difference**: +17h (When it's 21:45 in Flat, it's 14:45 in Seoul)
- **Elevation difference**: 286 ft (ICN is lower than FLT)

## Airports

### [Flat Airport (FLT)](https://www.flightduration.online/airport/flt-flat-flat-airport/1ef266df-1c70-699a-b652-06bb2780ed98)

- City: Flat, United States
- ICAO: KFLT
- Timezone: America/Anchorage
- Coordinates: 62.450000, -157.990000
- Elevation: 309 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 a long-haul route typically operated by wide-body aircraft such as the Boeing 777 or Airbus A350. Full meal service, in-flight entertainment, and comfort amenities are standard.

Time-zone information: When it's 21:45 in Flat, it's 14:45 in Seoul.
With a 17-hour time difference, expect significant jet lag.

## Related

- [Flat Airport (FLT)](https://www.flightduration.online/airport/flt-flat-flat-airport/1ef266df-1c70-699a-b652-06bb2780ed98)
- [Incheon International Airport (ICN)](https://www.flightduration.online/airport/icn-seoul-incheon-international-airport/1ef266df-8e0e-6aac-85a0-06bb2780ed98)
- [Flight duration calculator](/#calculator)