| Sofia to Coueron | 1,258.01 mi (2,024.57 km) |
| Sofia to Coulommiers | 1,059.36 mi (1,704.88 km) |
| Sofia to Courbevoic | 1,097.26 mi (1,765.87 km) |
| Sofia to Courcouronnes | 1,084.70 mi (1,745.66 km) |
| Sofia to Cournon-d'Auvergne | 1,015.92 mi (1,634.96 km) |
| Sofia to Courrieres | 1,101.32 mi (1,772.41 km) |
| Sofia to Coutras | 1,175.41 mi (1,891.64 km) |
| Sofia to Couzeix | 1,110.67 mi (1,787.44 km) |
| Sofia to Cran-Gevrier | 878.15 mi (1,413.25 km) |
| Sofia to Craponne | 942.69 mi (1,517.11 km) |
| Sofia to Creil | 1,094.01 mi (1,760.65 km) |
| Sofia to Crepy-en-Valois | 1,076.08 mi (1,731.79 km) |
| Sofia to Crest | 922.96 mi (1,485.35 km) |
| Sofia to Creteil | 1,086.15 mi (1,747.98 km) |
| Sofia to Creutzwald | 913.96 mi (1,470.87 km) |
