| Cities | Distance |
|---|---|
| Kilkis to Smolyan | 103.82 mi (167.08 km) |
| Kilkis to Sofia | 120.99 mi (194.71 km) |
| Kilkis to Sopot | 150.54 mi (242.28 km) |
| Kilkis to Sozopol | 268.24 mi (431.69 km) |
| Kilkis to Sredets | 242.74 mi (390.65 km) |
| Kilkis to Stamboliyski | 117.20 mi (188.62 km) |
| Kilkis to Stara Zagora | 175.05 mi (281.72 km) |
| Kilkis to Svilengrad | 181.09 mi (291.43 km) |
| Kilkis to Svishtov | 221.81 mi (356.97 km) |
| Kilkis to Targovishte | 246.56 mi (396.79 km) |
| Kilkis to Teteven | 151.72 mi (244.17 km) |
| Kilkis to Troyan | 162.09 mi (260.86 km) |
| Kilkis to Tryavna | 187.76 mi (302.18 km) |
| Kilkis to Tutrakan | 285.19 mi (458.97 km) |
| Kilkis to Varna | 301.31 mi (484.91 km) |