# Distance from Kolkata (CCU) to Oak Harbor (NUW)

> 11,534 km · estimated flight time 15h · Ultra-long-haul route.

## Summary

- **Distance**: 11,534 km / 7,167 mi / 6,228 nm
- **Estimated flight time**: 15h
- **Heading**: 21° (north northeast)
- **Return heading**: 331° (north northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (India) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -12.5h (When it's 12:27 in Kolkata, it's 23:57 in Oak Harbor)
- **Elevation difference**: 31 ft (NUW 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

### [Whidbey Island Nas (Ault Field) Airport (NUW)](https://www.flightduration.online/airport/nuw-oak-harbor-whidbey-island-nas-ault-field-airport/1ef266df-2f06-6cb2-868b-06bb2780ed98)

- City: Oak Harbor, United States
- ICAO: KNUW
- Timezone: America/Los_Angeles
- Coordinates: 48.350000, -122.660000
- Elevation: 47 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 12:27 in Kolkata, it's 23:57 in Oak Harbor.
With a 12.5-hour time difference, expect significant jet lag.

## 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)
- [Whidbey Island Nas (Ault Field) Airport (NUW)](https://www.flightduration.online/airport/nuw-oak-harbor-whidbey-island-nas-ault-field-airport/1ef266df-2f06-6cb2-868b-06bb2780ed98)
- [Flight duration calculator](/#calculator)