| Civitavecchia to Sangeorz-Bai | 728.20 mi (1,171.93 km) |
| Civitavecchia to Sannicolau Mare | 515.59 mi (829.77 km) |
| Civitavecchia to Santana | 562.33 mi (904.98 km) |
| Civitavecchia to Satu Mare | 668.78 mi (1,076.30 km) |
| Civitavecchia to Scobinti | 825.65 mi (1,328.76 km) |
| Civitavecchia to Scornicesti | 662.31 mi (1,065.89 km) |
| Civitavecchia to Sebes | 641.81 mi (1,032.89 km) |
| Civitavecchia to Seini | 682.96 mi (1,099.12 km) |
| Civitavecchia to Sfantu-Gheorghe | 741.22 mi (1,192.87 km) |
| Civitavecchia to Sibiu | 664.43 mi (1,069.29 km) |
| Civitavecchia to Sighetu Marmatiei | 713.58 mi (1,148.39 km) |
| Civitavecchia to Sighisoara | 702.88 mi (1,131.17 km) |
| Civitavecchia to Simeria | 613.94 mi (988.03 km) |
| Civitavecchia to Sinaia | 721.33 mi (1,160.87 km) |
| Civitavecchia to Slatina | 651.59 mi (1,048.63 km) |
