| Chauny to Smolyan | 1,171.57 mi (1,885.46 km) |
| Chauny to Sofia | 1,070.02 mi (1,722.03 km) |
| Chauny to Sopot | 1,132.40 mi (1,822.42 km) |
| Chauny to Sozopol | 1,268.31 mi (2,041.15 km) |
| Chauny to Sredets | 1,249.03 mi (2,010.11 km) |
| Chauny to Stamboliyski | 1,142.81 mi (1,839.17 km) |
| Chauny to Stara Zagora | 1,179.07 mi (1,897.52 km) |
| Chauny to Svilengrad | 1,227.93 mi (1,976.16 km) |
| Chauny to Svishtov | 1,123.96 mi (1,808.83 km) |
| Chauny to Targovishte | 1,190.27 mi (1,915.56 km) |
| Chauny to Teteven | 1,101.83 mi (1,773.23 km) |
| Chauny to Troyan | 1,122.37 mi (1,806.28 km) |
| Chauny to Tryavna | 1,156.71 mi (1,861.55 km) |
| Chauny to Tutrakan | 1,165.22 mi (1,875.23 km) |
| Chauny to Varna | 1,249.79 mi (2,011.35 km) |
