# Distance from Nantucket (ACK) to Colombo (CMB)

> 13,817 km · estimated flight time 17h · Ultra-long-haul route.

## Summary

- **Distance**: 13,817 km / 8,585 mi / 7,460 nm
- **Estimated flight time**: 17h
- **Heading**: 37° (northeast)
- **Return heading**: 333° (north northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Sri Lanka
- **Intercontinental**: North America → Asia
- **Time difference**: +9.5h (When it's 09:54 in Nantucket, it's 19:24 in Colombo)
- **Elevation difference**: 17 ft (CMB is lower than ACK)

## Airports

### [Nantucket Memorial Airport (ACK)](https://www.flightduration.online/airport/ack-nantucket-nantucket-memorial-airport/1ef266df-0d24-6e78-82bb-06bb2780ed98)

- City: Nantucket, United States
- ICAO: KACK
- Timezone: America/New_York
- Coordinates: 41.300000, -70.100000
- Elevation: 47 ft

### [Bandaranaike International Apt Colombo Airport (CMB)](https://www.flightduration.online/airport/cmb-colombo-bandaranaike-international-apt-colombo-airport/1ef266df-ef5c-65b6-9127-06bb2780ed98)

- City: Colombo, Sri Lanka
- ICAO: VCBI
- Timezone: Asia/Colombo
- Coordinates: 7.180000, 79.880000
- Elevation: 30 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 09:54 in Nantucket, it's 19:24 in Colombo.
With a 9.5-hour time difference, expect significant jet lag.

## Related

- [Nantucket Memorial Airport (ACK)](https://www.flightduration.online/airport/ack-nantucket-nantucket-memorial-airport/1ef266df-0d24-6e78-82bb-06bb2780ed98)
- [Bandaranaike International Apt Colombo Airport (CMB)](https://www.flightduration.online/airport/cmb-colombo-bandaranaike-international-apt-colombo-airport/1ef266df-ef5c-65b6-9127-06bb2780ed98)
- [Flight duration calculator](/#calculator)