| Radolfzell am Bodensee to Sangeorz-Bai | 731.93 mi (1,177.92 km) |
| Radolfzell am Bodensee to Sannicolau Mare | 561.20 mi (903.17 km) |
| Radolfzell am Bodensee to Santana | 597.13 mi (960.99 km) |
| Radolfzell am Bodensee to Satu Mare | 645.81 mi (1,039.34 km) |
| Radolfzell am Bodensee to Scobinti | 836.19 mi (1,345.72 km) |
| Radolfzell am Bodensee to Scornicesti | 775.71 mi (1,248.39 km) |
| Radolfzell am Bodensee to Sebes | 699.79 mi (1,126.21 km) |
| Radolfzell am Bodensee to Seini | 664.36 mi (1,069.18 km) |
| Radolfzell am Bodensee to Sfantu-Gheorghe | 804.37 mi (1,294.51 km) |
| Radolfzell am Bodensee to Sibiu | 729.87 mi (1,174.61 km) |
| Radolfzell am Bodensee to Sighetu Marmatiei | 691.37 mi (1,112.65 km) |
| Radolfzell am Bodensee to Sighisoara | 751.98 mi (1,210.20 km) |
| Radolfzell am Bodensee to Simeria | 675.94 mi (1,087.83 km) |
| Radolfzell am Bodensee to Sinaia | 803.53 mi (1,293.15 km) |
| Radolfzell am Bodensee to Slatina | 770.91 mi (1,240.66 km) |
