| Olgiate Olona to Sangeorz-Bai | 759.44 mi (1,222.20 km) |
| Olgiate Olona to Sannicolau Mare | 564.77 mi (908.90 km) |
| Olgiate Olona to Santana | 607.02 mi (976.90 km) |
| Olgiate Olona to Satu Mare | 679.07 mi (1,092.86 km) |
| Olgiate Olona to Scobinti | 864.81 mi (1,391.78 km) |
| Olgiate Olona to Scornicesti | 766.35 mi (1,233.31 km) |
| Olgiate Olona to Sebes | 706.85 mi (1,137.57 km) |
| Olgiate Olona to Seini | 696.93 mi (1,121.60 km) |
| Olgiate Olona to Sfantu-Gheorghe | 813.65 mi (1,309.44 km) |
| Olgiate Olona to Sibiu | 735.59 mi (1,183.81 km) |
| Olgiate Olona to Sighetu Marmatiei | 726.38 mi (1,169.00 km) |
| Olgiate Olona to Sighisoara | 764.33 mi (1,230.06 km) |
| Olgiate Olona to Simeria | 680.46 mi (1,095.10 km) |
| Olgiate Olona to Sinaia | 806.11 mi (1,297.30 km) |
| Olgiate Olona to Slatina | 759.28 mi (1,221.95 km) |
