# Distance from Seoul (GMP) to Kathmandu (KTM)

> 3,997 km · estimated flight time 6h · Medium-haul route.

## Summary

- **Distance**: 3,997 km / 2,483 mi / 2,158 nm
- **Estimated flight time**: 6h
- **Heading**: 266° (west)
- **Return heading**: 63° (east northeast)
- **Classification**: Medium-haul
- **Type**: International (South Korea) → Nepal
- **Time difference**: -3.25h (When it's 23:58 in Seoul, it's 20:43 in Kathmandu)
- **Elevation difference**: 4,332 ft (KTM is higher than GMP)

## Airports

### [Gimpo International Airport (GMP)](https://www.flightduration.online/airport/gmp-seoul-gimpo-international-airport/1ef266df-8e1d-67f0-9b6a-06bb2780ed98)

- City: Seoul, South Korea
- ICAO: RKSS
- Timezone: Asia/Seoul
- Coordinates: 37.560000, 126.790000
- Elevation: 58 ft

### [Tribhuvan International Airport (KTM)](https://www.flightduration.online/airport/ktm-kathmandu-tribhuvan-international-airport/1ef266df-f304-6ec0-afd1-06bb2780ed98)

- City: Kathmandu, Nepal
- ICAO: VNKT
- Timezone: Asia/Kathmandu
- Coordinates: 27.700000, 85.360000
- Elevation: 4,390 ft

## Route notes

This is a medium-haul route that may be operated by either narrow-body or wide-body aircraft depending on demand. Passengers can expect a meal service on most carriers.

Time-zone information: When it's 23:58 in Seoul, it's 20:43 in Kathmandu.
The 3.25-hour time difference may cause some jet lag.

## Related

- [Gimpo International Airport (GMP)](https://www.flightduration.online/airport/gmp-seoul-gimpo-international-airport/1ef266df-8e1d-67f0-9b6a-06bb2780ed98)
- [Tribhuvan International Airport (KTM)](https://www.flightduration.online/airport/ktm-kathmandu-tribhuvan-international-airport/1ef266df-f304-6ec0-afd1-06bb2780ed98)
- [Flight duration calculator](/#calculator)