| Ronchin to Smolyan | 1,202.02 mi (1,934.46 km) |
| Ronchin to Sofia | 1,099.31 mi (1,769.17 km) |
| Ronchin to Sopot | 1,159.52 mi (1,866.07 km) |
| Ronchin to Sozopol | 1,291.71 mi (2,078.81 km) |
| Ronchin to Sredets | 1,273.35 mi (2,049.25 km) |
| Ronchin to Stamboliyski | 1,171.89 mi (1,885.97 km) |
| Ronchin to Stara Zagora | 1,205.46 mi (1,940.00 km) |
| Ronchin to Svilengrad | 1,255.46 mi (2,020.47 km) |
| Ronchin to Svishtov | 1,146.96 mi (1,845.85 km) |
| Ronchin to Targovishte | 1,212.69 mi (1,951.64 km) |
| Ronchin to Teteven | 1,128.87 mi (1,816.73 km) |
| Ronchin to Troyan | 1,148.79 mi (1,848.80 km) |
| Ronchin to Tryavna | 1,181.97 mi (1,902.19 km) |
| Ronchin to Tutrakan | 1,184.92 mi (1,906.95 km) |
| Ronchin to Varna | 1,270.45 mi (2,044.60 km) |
