# Distance from Kolkata (CCU) to Ulsan (USN)

> 4,190 km · estimated flight time 6h · Long-haul route.

## Summary

- **Distance**: 4,190 km / 2,604 mi / 2,263 nm
- **Estimated flight time**: 6h
- **Heading**: 61° (east northeast)
- **Return heading**: 261° (west)
- **Classification**: Long-haul
- **Type**: International (India) → South Korea
- **Time difference**: +3.5h (When it's 04:46 in Kolkata, it's 08:16 in Ulsan)
- **Elevation difference**: 29 ft (USN is higher than CCU)

## Airports

### [Netaji Subhash Chandra Bose International Airport (CCU)](https://www.flightduration.online/airport/ccu-kolkata-netaji-subhash-chandra-bose-international-airport/1ef266df-f023-6fe4-a8d5-06bb2780ed98)

- City: Kolkata, India
- ICAO: VECC
- Timezone: Asia/Kolkata
- Coordinates: 22.650000, 88.450000
- Elevation: 16 ft

### [Ulsan Airport (USN)](https://www.flightduration.online/airport/usn-ulsan-ulsan-airport/1ef266df-8de2-6506-b034-06bb2780ed98)

- City: Ulsan, South Korea
- ICAO: RKPU
- Timezone: Asia/Seoul
- Coordinates: 35.590000, 129.350000
- Elevation: 45 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 04:46 in Kolkata, it's 08:16 in Ulsan.
The 3.5-hour time difference may cause some jet lag.

## Related

- [Netaji Subhash Chandra Bose International Airport (CCU)](https://www.flightduration.online/airport/ccu-kolkata-netaji-subhash-chandra-bose-international-airport/1ef266df-f023-6fe4-a8d5-06bb2780ed98)
- [Ulsan Airport (USN)](https://www.flightduration.online/airport/usn-ulsan-ulsan-airport/1ef266df-8de2-6506-b034-06bb2780ed98)
- [Flight duration calculator](/#calculator)