# Distance from Seoul (ICN) to Springfield (SPI)

> 10,662 km · estimated flight time 14h · Ultra-long-haul route.

## Summary

- **Distance**: 10,662 km / 6,625 mi / 5,757 nm
- **Estimated flight time**: 14h
- **Heading**: 27° (north northeast)
- **Return heading**: 332° (north northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (South Korea) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -14h (When it's 19:35 in Seoul, it's 05:35 in Springfield)
- **Elevation difference**: 575 ft (SPI 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

### [Abraham Lincoln Capital Airport (SPI)](https://www.flightduration.online/airport/spi-springfield-abraham-lincoln-capital-airport/1ef266df-3956-6172-9b38-06bb2780ed98)

- City: Springfield, United States
- ICAO: KSPI
- Timezone: America/Chicago
- Coordinates: 39.840000, -89.680000
- Elevation: 598 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 19:35 in Seoul, it's 05:35 in Springfield.
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)
- [Abraham Lincoln Capital Airport (SPI)](https://www.flightduration.online/airport/spi-springfield-abraham-lincoln-capital-airport/1ef266df-3956-6172-9b38-06bb2780ed98)
- [Flight duration calculator](/#calculator)