# Distance from Flagstaff (FLG) to Seoul (ICN)

> 9,961 km · estimated flight time 13h · Ultra-long-haul route.

## Summary

- **Distance**: 9,961 km / 6,189 mi / 5,378 nm
- **Estimated flight time**: 13h
- **Heading**: 318° (northwest)
- **Return heading**: 44° (northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → South Korea
- **Intercontinental**: North America → Asia
- **Time difference**: +16h (When it's 05:55 in Flagstaff, it's 21:55 in Seoul)
- **Elevation difference**: 6,992 ft (ICN is lower than FLG)

## Airports

### [Flagstaff Pulliam Airport (FLG)](https://www.flightduration.online/airport/flg-flagstaff-flagstaff-pulliam-airport/1ef266df-1c5d-652a-9138-06bb2780ed98)

- City: Flagstaff, United States
- ICAO: KFLG
- Timezone: America/Phoenix
- Coordinates: 35.140000, -111.670000
- Elevation: 7,015 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 05:55 in Flagstaff, it's 21:55 in Seoul.
With a 16-hour time difference, expect significant jet lag.

## Related

- [Flagstaff Pulliam Airport (FLG)](https://www.flightduration.online/airport/flg-flagstaff-flagstaff-pulliam-airport/1ef266df-1c5d-652a-9138-06bb2780ed98)
- [Incheon International Airport (ICN)](https://www.flightduration.online/airport/icn-seoul-incheon-international-airport/1ef266df-8e0e-6aac-85a0-06bb2780ed98)
- [Flight duration calculator](/#calculator)