| Kallithea to Sangeorz-Bai | 652.75 mi (1,050.49 km) |
| Kallithea to Sannicolau Mare | 582.45 mi (937.36 km) |
| Kallithea to Santana | 591.16 mi (951.37 km) |
| Kallithea to Satu Mare | 681.10 mi (1,096.13 km) |
| Kallithea to Scobinti | 672.00 mi (1,081.47 km) |
| Kallithea to Scornicesti | 459.52 mi (739.52 km) |
| Kallithea to Sebes | 553.48 mi (890.74 km) |
| Kallithea to Seini | 677.29 mi (1,089.99 km) |
| Kallithea to Sfantu-Gheorghe | 557.16 mi (896.66 km) |
| Kallithea to Sibiu | 542.38 mi (872.88 km) |
| Kallithea to Sighetu Marmatiei | 689.52 mi (1,109.68 km) |
| Kallithea to Sighisoara | 573.90 mi (923.61 km) |
| Kallithea to Simeria | 546.98 mi (880.28 km) |
| Kallithea to Sinaia | 520.11 mi (837.03 km) |
| Kallithea to Slatina | 449.03 mi (722.64 km) |
