# Distance from Colombo (CMB) to Greeneville (GCY)

> 14,864 km · estimated flight time 18h · Ultra-long-haul route.

## Summary

- **Distance**: 14,864 km / 9,236 mi / 8,026 nm
- **Estimated flight time**: 18h
- **Heading**: 341° (north northwest)
- **Return heading**: 24° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (Sri Lanka) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -9.5h (When it's 10:06 in Colombo, it's 00:36 in Greeneville)
- **Elevation difference**: 1,578 ft (GCY is higher than CMB)

## Airports

### [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

### [Greeneville Municipal Airport (GCY)](https://www.flightduration.online/airport/gcy-greeneville-greeneville-municipal-airport/1ef266df-1dd6-63c0-969e-06bb2780ed98)

- City: Greeneville, United States
- ICAO: KGCY
- Timezone: America/New_York
- Coordinates: 36.200000, -82.810000
- Elevation: 1,608 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 10:06 in Colombo, it's 00:36 in Greeneville.
With a 9.5-hour time difference, expect significant jet lag.

## Related

- [Bandaranaike International Apt Colombo Airport (CMB)](https://www.flightduration.online/airport/cmb-colombo-bandaranaike-international-apt-colombo-airport/1ef266df-ef5c-65b6-9127-06bb2780ed98)
- [Greeneville Municipal Airport (GCY)](https://www.flightduration.online/airport/gcy-greeneville-greeneville-municipal-airport/1ef266df-1dd6-63c0-969e-06bb2780ed98)
- [Flight duration calculator](/#calculator)