# Distance from Chiang Rai (CEI) to Sofia (SOF)

> 7,434 km · estimated flight time 10h · Long-haul route.

## Summary

- **Distance**: 7,434 km / 4,619 mi / 4,014 nm
- **Estimated flight time**: 10h
- **Heading**: 309° (northwest)
- **Return heading**: 84° (east)
- **Classification**: Long-haul
- **Type**: International (Thailand) → Bulgaria
- **Intercontinental**: Asia → Europe
- **Time difference**: -4h (When it's 05:37 in Chiang Rai, it's 01:37 in Sofia)
- **Elevation difference**: 462 ft (SOF is higher than CEI)

## Airports

### [Chiang Rai International Airport (CEI)](https://www.flightduration.online/airport/cei-chiang-rai-chiang-rai-international-airport/1ef266df-f548-6b50-a273-06bb2780ed98)

- City: Chiang Rai, Thailand
- ICAO: VTCT
- Timezone: Asia/Bangkok
- Coordinates: 19.950000, 99.880000
- Elevation: 1,280 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 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 05:37 in Chiang Rai, it's 01:37 in Sofia.
The 4-hour time difference may cause some jet lag.

## Related

- [Chiang Rai International Airport (CEI)](https://www.flightduration.online/airport/cei-chiang-rai-chiang-rai-international-airport/1ef266df-f548-6b50-a273-06bb2780ed98)
- [Sofia Airport (SOF)](https://www.flightduration.online/airport/sof-sofia-sofia-airport/1ef266df-436b-611c-bff1-06bb2780ed98)
- [Flight duration calculator](/#calculator)