# Distance from Rome (FCO) to Siem Reap (REP)

> 9,146 km · estimated flight time 12h · Ultra-long-haul route.

## Summary

- **Distance**: 9,146 km / 5,683 mi / 4,938 nm
- **Estimated flight time**: 12h
- **Heading**: 79° (east)
- **Return heading**: 311° (northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (Italy) → Cambodia
- **Intercontinental**: Europe → Asia
- **Time difference**: +5h (When it's 22:20 in Rome, it's 03:20 in Siem Reap)
- **Elevation difference**: 45 ft (REP is higher than FCO)

## Airports

### [Leonardo Da Vinci (Fiumicino) International Airport (FCO)](https://www.flightduration.online/airport/fco-rome-leonardo-da-vinci-fiumicino-international-airport/1ef266df-5138-6e48-8f07-06bb2780ed98)

- City: Rome, Italy
- ICAO: LIRF
- Timezone: Europe/Rome
- Coordinates: 41.800000, 12.250000
- Elevation: 15 ft

### [Angkor International Airport (REP)](https://www.flightduration.online/airport/rep-siem-reap-angkor-international-airport/1ef266df-efb8-691a-a780-06bb2780ed98)

- City: Siem Reap, Cambodia
- ICAO: VDSR
- Timezone: Asia/Phnom_Penh
- Coordinates: 13.410000, 103.810000
- Elevation: 60 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 22:20 in Rome, it's 03:20 in Siem Reap.
The 5-hour time difference may cause some jet lag.

## Related

- [Leonardo Da Vinci (Fiumicino) International Airport (FCO)](https://www.flightduration.online/airport/fco-rome-leonardo-da-vinci-fiumicino-international-airport/1ef266df-5138-6e48-8f07-06bb2780ed98)
- [Angkor International Airport (REP)](https://www.flightduration.online/airport/rep-siem-reap-angkor-international-airport/1ef266df-efb8-691a-a780-06bb2780ed98)
- [Flight duration calculator](/#calculator)