# Distance from Bucharest (OTP) to Siem Reap (REP)

> 7,998 km · estimated flight time 10h · Long-haul route.

## Summary

- **Distance**: 7,998 km / 4,970 mi / 4,318 nm
- **Estimated flight time**: 10h
- **Heading**: 89° (east)
- **Return heading**: 313° (northwest)
- **Classification**: Long-haul
- **Type**: International (Romania) → Cambodia
- **Intercontinental**: Europe → Asia
- **Time difference**: +4h (When it's 23:20 in Bucharest, it's 03:20 in Siem Reap)
- **Elevation difference**: 254 ft (REP is lower than OTP)

## Airports

### [Henri Coanda International Airport (OTP)](https://www.flightduration.online/airport/otp-bucharest-henri-coanda-international-airport/1ef266df-5682-65f2-900a-06bb2780ed98)

- City: Bucharest, Romania
- ICAO: LROP
- Timezone: Europe/Bucharest
- Coordinates: 44.570000, 26.100000
- Elevation: 314 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 a long-haul route typically operated by wide-body aircraft such as the Boeing 777 or Airbus A350. Full meal service, in-flight entertainment, and comfort amenities are standard.

Time-zone information: When it's 23:20 in Bucharest, it's 03:20 in Siem Reap.
The 4-hour time difference may cause some jet lag.

## Related

- [Henri Coanda International Airport (OTP)](https://www.flightduration.online/airport/otp-bucharest-henri-coanda-international-airport/1ef266df-5682-65f2-900a-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)