# Distance from Atwater (MER) to Bucharest (OTP)

> 10,306 km · estimated flight time 13h · Ultra-long-haul route.

## Summary

- **Distance**: 10,306 km / 6,404 mi / 5,565 nm
- **Estimated flight time**: 13h
- **Heading**: 23° (north northeast)
- **Return heading**: 334° (north northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Romania
- **Intercontinental**: North America → Europe
- **Time difference**: +10h (When it's 02:46 in Atwater, it's 12:46 in Bucharest)
- **Elevation difference**: 124 ft (OTP is higher than MER)

## Airports

### [Castle Airport (MER)](https://www.flightduration.online/airport/mer-atwater-castle-airport/1ef266df-2a82-6f4c-b75d-06bb2780ed98)

- City: Atwater, United States
- ICAO: KMER
- Timezone: America/Los_Angeles
- Coordinates: 37.400000, -120.600000
- Elevation: 190 ft

### [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

## 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 02:46 in Atwater, it's 12:46 in Bucharest.
With a 10-hour time difference, expect significant jet lag.

## Related

- [Castle Airport (MER)](https://www.flightduration.online/airport/mer-atwater-castle-airport/1ef266df-2a82-6f4c-b75d-06bb2780ed98)
- [Henri Coanda International Airport (OTP)](https://www.flightduration.online/airport/otp-bucharest-henri-coanda-international-airport/1ef266df-5682-65f2-900a-06bb2780ed98)
- [Flight duration calculator](/#calculator)