| Smolyan to Croissy-sur-Seine | 1,201.82 mi (1,934.15 km) |
| Smolyan to Croix | 1,201.46 mi (1,933.57 km) |
| Smolyan to Crosne | 1,184.73 mi (1,906.65 km) |
| Smolyan to Cuers | 955.18 mi (1,537.21 km) |
| Smolyan to Cugnaux | 1,192.32 mi (1,918.85 km) |
| Smolyan to Cusset | 1,100.26 mi (1,770.70 km) |
| Smolyan to Dammarie-le-Lys | 1,173.11 mi (1,887.94 km) |
| Smolyan to Dammartin-en-Goele | 1,181.97 mi (1,902.20 km) |
| Smolyan to Dardilly | 1,035.18 mi (1,665.96 km) |
| Smolyan to Darnetal | 1,255.88 mi (2,021.14 km) |
| Smolyan to Dax | 1,311.53 mi (2,110.71 km) |
| Smolyan to Decines-Charpieu | 1,024.97 mi (1,649.53 km) |
| Smolyan to Denain | 1,182.20 mi (1,902.56 km) |
| Smolyan to Deuil-la-Barre | 1,195.72 mi (1,924.33 km) |
| Smolyan to Deville-les-Rouen | 1,260.73 mi (2,028.96 km) |
