| Kilkenny to Smolyan | 1,667.05 mi (2,682.86 km) |
| Kilkenny to Sofia | 1,564.41 mi (2,517.68 km) |
| Kilkenny to Sopot | 1,624.47 mi (2,614.32 km) |
| Kilkenny to Sozopol | 1,755.37 mi (2,824.99 km) |
| Kilkenny to Sredets | 1,737.43 mi (2,796.12 km) |
| Kilkenny to Stamboliyski | 1,636.99 mi (2,634.49 km) |
| Kilkenny to Stara Zagora | 1,670.24 mi (2,688.00 km) |
| Kilkenny to Svilengrad | 1,720.45 mi (2,768.79 km) |
| Kilkenny to Svishtov | 1,610.57 mi (2,591.97 km) |
| Kilkenny to Targovishte | 1,675.92 mi (2,697.14 km) |
| Kilkenny to Teteven | 1,593.81 mi (2,564.98 km) |
| Kilkenny to Troyan | 1,613.61 mi (2,596.85 km) |
| Kilkenny to Tryavna | 1,646.46 mi (2,649.71 km) |
| Kilkenny to Tutrakan | 1,646.46 mi (2,649.72 km) |
| Kilkenny to Varna | 1,732.51 mi (2,788.20 km) |
