# Distance from Kolkata (CCU) to Ilam (IIL)

> 4,268 km · estimated flight time 6h · Long-haul route.

## Summary

- **Distance**: 4,268 km / 2,652 mi / 2,304 nm
- **Estimated flight time**: 6h
- **Heading**: 296° (west northwest)
- **Return heading**: 95° (east)
- **Classification**: Long-haul
- **Type**: International (India) → Iran
- **Time difference**: -2h (When it's 03:09 in Kolkata, it's 01:09 in Ilam)
- **Elevation difference**: 4,388 ft (IIL 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

### [Ilam Airport (IIL)](https://www.flightduration.online/airport/iil-ilam-ilam-airport/1ef266df-7d36-6432-9273-06bb2780ed98)

- City: Ilam, Iran
- ICAO: OICI
- Timezone: Asia/Tehran
- Coordinates: 33.590000, 46.400000
- Elevation: 4,404 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 03:09 in Kolkata, it's 01:09 in Ilam.

## 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)
- [Ilam Airport (IIL)](https://www.flightduration.online/airport/iil-ilam-ilam-airport/1ef266df-7d36-6432-9273-06bb2780ed98)
- [Flight duration calculator](/#calculator)