# Distance from Niuatoputapu (NTT) to Sofia (SOF)

> 16,624 km · estimated flight time 21h · Ultra-long-haul route.

## Summary

- **Distance**: 16,624 km / 10,329 mi / 8,976 nm
- **Estimated flight time**: 21h
- **Heading**: 335° (north northwest)
- **Return heading**: 34° (northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (Tonga) → Bulgaria
- **Intercontinental**: Oceania → Europe
- **Time difference**: -10h (When it's 15:15 in Niuatoputapu, it's 05:15 in Sofia)
- **Elevation difference**: 1,712 ft (SOF is higher than NTT)

## Airports

### [Kuini Lavenia Airport (NTT)](https://www.flightduration.online/airport/ntt-niuatoputapu-kuini-lavenia-airport/1ef266df-7067-6620-b19d-06bb2780ed98)

- City: Niuatoputapu, Tonga
- ICAO: NFTP
- Timezone: Pacific/Tongatapu
- Coordinates: -15.980000, -173.790000
- Elevation: 30 ft

### [Sofia Airport (SOF)](https://www.flightduration.online/airport/sof-sofia-sofia-airport/1ef266df-436b-611c-bff1-06bb2780ed98)

- City: Sofia, Bulgaria
- ICAO: LBSF
- Timezone: Europe/Sofia
- Coordinates: 42.700000, 23.410000
- Elevation: 1,742 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 15:15 in Niuatoputapu, it's 05:15 in Sofia.
With a 10-hour time difference, expect significant jet lag.

## Related

- [Kuini Lavenia Airport (NTT)](https://www.flightduration.online/airport/ntt-niuatoputapu-kuini-lavenia-airport/1ef266df-7067-6620-b19d-06bb2780ed98)
- [Sofia Airport (SOF)](https://www.flightduration.online/airport/sof-sofia-sofia-airport/1ef266df-436b-611c-bff1-06bb2780ed98)
- [Flight duration calculator](/#calculator)