| Sint-Pieters-Leeuw to Sangeorz-Bai | 950.87 mi (1,530.28 km) |
| Sint-Pieters-Leeuw to Sannicolau Mare | 815.81 mi (1,312.91 km) |
| Sint-Pieters-Leeuw to Santana | 843.65 mi (1,357.72 km) |
| Sint-Pieters-Leeuw to Satu Mare | 862.60 mi (1,388.23 km) |
| Sint-Pieters-Leeuw to Scobinti | 1,048.55 mi (1,687.48 km) |
| Sint-Pieters-Leeuw to Scornicesti | 1,032.96 mi (1,662.39 km) |
| Sint-Pieters-Leeuw to Sebes | 943.93 mi (1,519.10 km) |
| Sint-Pieters-Leeuw to Seini | 880.80 mi (1,417.51 km) |
| Sint-Pieters-Leeuw to Sfantu-Gheorghe | 1,041.76 mi (1,676.56 km) |
| Sint-Pieters-Leeuw to Sibiu | 974.08 mi (1,567.62 km) |
| Sint-Pieters-Leeuw to Sighetu Marmatiei | 902.84 mi (1,452.98 km) |
| Sint-Pieters-Leeuw to Sighisoara | 988.11 mi (1,590.20 km) |
| Sint-Pieters-Leeuw to Simeria | 923.74 mi (1,486.62 km) |
| Sint-Pieters-Leeuw to Sinaia | 1,048.18 mi (1,686.88 km) |
| Sint-Pieters-Leeuw to Slatina | 1,030.35 mi (1,658.18 km) |
