# Distance from Alma (AMN) to Kolkata (CCU)

> 12,646 km · estimated flight time 16h · Ultra-long-haul route.

## Summary

- **Distance**: 12,646 km / 7,858 mi / 6,828 nm
- **Estimated flight time**: 16h
- **Heading**: 7° (north)
- **Return heading**: 355° (north)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → India
- **Intercontinental**: North America → Asia
- **Time difference**: +9.5h (When it's 07:14 in Alma, it's 16:44 in Kolkata)
- **Elevation difference**: 738 ft (CCU is lower than AMN)

## Airports

### [Gratiot Community Airport (AMN)](https://www.flightduration.online/airport/amn-alma-gratiot-community-airport/1ef266df-0e32-62ac-a2dc-06bb2780ed98)

- City: Alma, United States
- ICAO: KAMN
- Timezone: America/Detroit
- Coordinates: 43.320000, -84.690000
- Elevation: 754 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 07:14 in Alma, it's 16:44 in Kolkata.
With a 9.5-hour time difference, expect significant jet lag.

## Related

- [Gratiot Community Airport (AMN)](https://www.flightduration.online/airport/amn-alma-gratiot-community-airport/1ef266df-0e32-62ac-a2dc-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)