# Distance from Kolkata (CCU) to Ust-Kut (UKX)

> 4,055 km · estimated flight time 6h · Long-haul route.

## Summary

- **Distance**: 4,055 km / 2,520 mi / 2,189 nm
- **Estimated flight time**: 6h
- **Heading**: 16° (north northeast)
- **Return heading**: 207° (south southwest)
- **Classification**: Long-haul
- **Type**: International (India) → Russia
- **Intercontinental**: Asia → Europe
- **Time difference**: +2.5h (When it's 21:37 in Kolkata, it's 00:07 in Ust-Kut)
- **Elevation difference**: 2,172 ft (UKX 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

### [Ust-Kut Airport (UKX)](https://www.flightduration.online/airport/ukx-ust-kut-ust-kut-airport/1ef266df-e683-64b2-8c43-06bb2780ed98)

- City: Ust-Kut, Russia
- ICAO: UITT
- Timezone: Asia/Irkutsk
- Coordinates: 56.860000, 105.730000
- Elevation: 2,188 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 21:37 in Kolkata, it's 00:07 in Ust-Kut.

## 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)
- [Ust-Kut Airport (UKX)](https://www.flightduration.online/airport/ukx-ust-kut-ust-kut-airport/1ef266df-e683-64b2-8c43-06bb2780ed98)
- [Flight duration calculator](/#calculator)