# Distance from Nashua (ASH) to Kolkata (CCU)

> 12,455 km · estimated flight time 16h · Ultra-long-haul route.

## Summary

- **Distance**: 12,455 km / 7,739 mi / 6,725 nm
- **Estimated flight time**: 16h
- **Heading**: 20° (north northeast)
- **Return heading**: 344° (north northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → India
- **Intercontinental**: North America → Asia
- **Time difference**: +9.5h (When it's 20:44 in Nashua, it's 06:14 in Kolkata)
- **Elevation difference**: 184 ft (CCU is lower than ASH)

## Airports

### [Boire Field (ASH)](https://www.flightduration.online/airport/ash-nashua-boire-field/1ef266df-0eec-61b6-9d0d-06bb2780ed98)

- City: Nashua, United States
- ICAO: KASH
- Timezone: America/New_York
- Coordinates: 42.780000, -71.510000
- Elevation: 200 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 20:44 in Nashua, it's 06:14 in Kolkata.
With a 9.5-hour time difference, expect significant jet lag.

## Related

- [Boire Field (ASH)](https://www.flightduration.online/airport/ash-nashua-boire-field/1ef266df-0eec-61b6-9d0d-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)