# Distance from Denver (DEN) to Colombo (RML)

> 14,803 km · estimated flight time 18h · Ultra-long-haul route.

## Summary

- **Distance**: 14,803 km / 9,198 mi / 7,993 nm
- **Estimated flight time**: 18h
- **Heading**: 354° (north)
- **Return heading**: 5° (north)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Sri Lanka
- **Intercontinental**: North America → Asia
- **Time difference**: +11.5h (When it's 00:13 in Denver, it's 11:43 in Colombo)
- **Elevation difference**: 5,412 ft (RML is lower than DEN)

## Airports

### [Denver International Airport (DEN)](https://www.flightduration.online/airport/den-denver-denver-international-airport/1ef266df-1706-67b6-bf3a-06bb2780ed98)

- City: Denver, United States
- ICAO: KDEN
- Timezone: America/Denver
- Coordinates: 39.860000, -104.670000
- Elevation: 5,434 ft

### [Colombo Int Arpt Ratmalana Airport (RML)](https://www.flightduration.online/airport/rml-colombo-colombo-int-arpt-ratmalana-airport/1ef266df-ef68-603c-ba57-06bb2780ed98)

- City: Colombo, Sri Lanka
- ICAO: VCCC
- Timezone: Asia/Colombo
- Coordinates: 6.820000, 79.890000
- Elevation: 22 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 00:13 in Denver, it's 11:43 in Colombo.
With a 11.5-hour time difference, expect significant jet lag.

## Related

- [Denver International Airport (DEN)](https://www.flightduration.online/airport/den-denver-denver-international-airport/1ef266df-1706-67b6-bf3a-06bb2780ed98)
- [Colombo Int Arpt Ratmalana Airport (RML)](https://www.flightduration.online/airport/rml-colombo-colombo-int-arpt-ratmalana-airport/1ef266df-ef68-603c-ba57-06bb2780ed98)
- [Flight duration calculator](/#calculator)