# Distance from Colombo (CMB) to Patuxent River (NHK)

> 14,395 km · estimated flight time 18h · Ultra-long-haul route.

## Summary

- **Distance**: 14,395 km / 8,945 mi / 7,773 nm
- **Estimated flight time**: 18h
- **Heading**: 336° (north northwest)
- **Return heading**: 31° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (Sri Lanka) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -9.5h (When it's 23:22 in Colombo, it's 13:52 in Patuxent River)
- **Elevation difference**: 9 ft (NHK 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

### [Patuxent River Nas (Trapnell Field) Airport (NHK)](https://www.flightduration.online/airport/nhk-patuxent-river-patuxent-river-nas-trapnell-field-airport/1ef266df-2e80-6f72-9d75-06bb2780ed98)

- City: Patuxent River, United States
- ICAO: KNHK
- Timezone: America/New_York
- Coordinates: 38.290000, -76.410000
- Elevation: 39 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 23:22 in Colombo, it's 13:52 in Patuxent River.
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)
- [Patuxent River Nas (Trapnell Field) Airport (NHK)](https://www.flightduration.online/airport/nhk-patuxent-river-patuxent-river-nas-trapnell-field-airport/1ef266df-2e80-6f72-9d75-06bb2780ed98)
- [Flight duration calculator](/#calculator)