# Distance from Washington (IAD) to Colombo (RML)

> 14,422 km · estimated flight time 18h · Ultra-long-haul route.

## Summary

- **Distance**: 14,422 km / 8,961 mi / 7,787 nm
- **Estimated flight time**: 18h
- **Heading**: 30° (north northeast)
- **Return heading**: 337° (north northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Sri Lanka
- **Intercontinental**: North America → Asia
- **Time difference**: +9.5h (When it's 02:55 in Washington, it's 12:25 in Colombo)
- **Elevation difference**: 290 ft (RML is lower than IAD)

## Airports

### [Washington Dulles International Airport (IAD)](https://www.flightduration.online/airport/iad-washington-washington-dulles-international-airport/1ef266df-22cc-64e2-b8c0-06bb2780ed98)

- City: Washington, United States
- ICAO: KIAD
- Timezone: America/New_York
- Coordinates: 38.900000, -77.500000
- Elevation: 312 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 02:55 in Washington, it's 12:25 in Colombo.
With a 9.5-hour time difference, expect significant jet lag.

## Related

- [Washington Dulles International Airport (IAD)](https://www.flightduration.online/airport/iad-washington-washington-dulles-international-airport/1ef266df-22cc-64e2-b8c0-06bb2780ed98)
- [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)