| Kouvola to Sangeorz-Bai | 936.11 mi (1,506.53 km) |
| Kouvola to Sannicolau Mare | 1,052.04 mi (1,693.09 km) |
| Kouvola to Santana | 1,024.75 mi (1,649.18 km) |
| Kouvola to Satu Mare | 916.20 mi (1,474.48 km) |
| Kouvola to Scobinti | 931.75 mi (1,499.51 km) |
| Kouvola to Scornicesti | 1,129.54 mi (1,817.82 km) |
| Kouvola to Sebes | 1,037.81 mi (1,670.19 km) |
| Kouvola to Seini | 916.63 mi (1,475.17 km) |
| Kouvola to Sfantu-Gheorghe | 1,037.37 mi (1,669.49 km) |
| Kouvola to Sibiu | 1,046.72 mi (1,684.53 km) |
| Kouvola to Sighetu Marmatiei | 900.95 mi (1,449.94 km) |
| Kouvola to Sighisoara | 1,015.23 mi (1,633.86 km) |
| Kouvola to Simeria | 1,048.36 mi (1,687.17 km) |
| Kouvola to Sinaia | 1,073.22 mi (1,727.18 km) |
| Kouvola to Slatina | 1,139.83 mi (1,834.38 km) |
