# Distance from Billings (BIL) to Kolkata (CCU)

> 12,211 km · estimated flight time 15h · Ultra-long-haul route.

## Summary

- **Distance**: 12,211 km / 7,588 mi / 6,594 nm
- **Estimated flight time**: 15h
- **Heading**: 343° (north northwest)
- **Return heading**: 13° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → India
- **Intercontinental**: North America → Asia
- **Time difference**: +11.5h (When it's 04:14 in Billings, it's 15:44 in Kolkata)
- **Elevation difference**: 3,646 ft (CCU is lower than BIL)

## Airports

### [Billings Logan International Airport (BIL)](https://www.flightduration.online/airport/bil-billings-billings-logan-international-airport/1ef266df-109b-612e-84e1-06bb2780ed98)

- City: Billings, United States
- ICAO: KBIL
- Timezone: America/Denver
- Coordinates: 45.810000, -108.540000
- Elevation: 3,662 ft

### [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

## 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 04:14 in Billings, it's 15:44 in Kolkata.
With a 11.5-hour time difference, expect significant jet lag.

## Related

- [Billings Logan International Airport (BIL)](https://www.flightduration.online/airport/bil-billings-billings-logan-international-airport/1ef266df-109b-612e-84e1-06bb2780ed98)
- [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)
- [Flight duration calculator](/#calculator)