# Distance from Seoul (ICN) to Markham (YKZ)

> 10,605 km · estimated flight time 13h · Ultra-long-haul route.

## Summary

- **Distance**: 10,605 km / 6,590 mi / 5,726 nm
- **Estimated flight time**: 13h
- **Heading**: 18° (north northeast)
- **Return heading**: 340° (north northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (South Korea) → Canada
- **Intercontinental**: Asia → North America
- **Time difference**: -13h (When it's 02:48 in Seoul, it's 13:48 in Markham)
- **Elevation difference**: 627 ft (YKZ 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

### [Toronto / Buttonville Municipal Airport (YKZ)](https://www.flightduration.online/airport/ykz-markham-toronto-buttonville-municipal-airport/1ef266de-b0c8-6026-b7b5-06bb2780ed98)

- City: Markham, Canada
- ICAO: CYKZ
- Timezone: America/Toronto
- Coordinates: 43.860000, -79.370000
- Elevation: 650 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 02:48 in Seoul, it's 13:48 in Markham.
With a 13-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)
- [Toronto / Buttonville Municipal Airport (YKZ)](https://www.flightduration.online/airport/ykz-markham-toronto-buttonville-municipal-airport/1ef266de-b0c8-6026-b7b5-06bb2780ed98)
- [Flight duration calculator](/#calculator)