# Distance from Sofia (SOF) to Christmas Island (XCH)

> 10,173 km · estimated flight time 13h · Ultra-long-haul route.

## Summary

- **Distance**: 10,173 km / 6,321 mi / 5,493 nm
- **Estimated flight time**: 13h
- **Heading**: 103° (east southeast)
- **Return heading**: 313° (northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (Bulgaria) → CX
- **Time difference**: +4h (When it's 21:15 in Sofia, it's 01:15 in Christmas Island)
- **Elevation difference**: 826 ft (XCH is lower than SOF)

## Airports

### [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

### [Christmas Island Airport (XCH)](https://www.flightduration.online/airport/xch-christmas-island-christmas-island-airport/1ef266e0-1796-65b8-9d9a-06bb2780ed98)

- City: Christmas Island, CX
- ICAO: YPXM
- Timezone: Indian/Christmas
- Coordinates: -10.450000, 105.690000
- Elevation: 916 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 21:15 in Sofia, it's 01:15 in Christmas Island.
The 4-hour time difference may cause some jet lag.

## Related

- [Sofia Airport (SOF)](https://www.flightduration.online/airport/sof-sofia-sofia-airport/1ef266df-436b-611c-bff1-06bb2780ed98)
- [Christmas Island Airport (XCH)](https://www.flightduration.online/airport/xch-christmas-island-christmas-island-airport/1ef266e0-1796-65b8-9d9a-06bb2780ed98)
- [Flight duration calculator](/#calculator)