| Heerlen to Sangeorz-Bai | 876.81 mi (1,411.08 km) |
| Heerlen to Sannicolau Mare | 746.53 mi (1,201.42 km) |
| Heerlen to Santana | 772.94 mi (1,243.93 km) |
| Heerlen to Satu Mare | 788.63 mi (1,269.17 km) |
| Heerlen to Scobinti | 973.84 mi (1,567.24 km) |
| Heerlen to Scornicesti | 963.25 mi (1,550.20 km) |
| Heerlen to Sebes | 872.48 mi (1,404.12 km) |
| Heerlen to Seini | 806.74 mi (1,298.32 km) |
| Heerlen to Sfantu-Gheorghe | 969.19 mi (1,559.77 km) |
| Heerlen to Sibiu | 902.54 mi (1,452.49 km) |
| Heerlen to Sighetu Marmatiei | 828.37 mi (1,333.14 km) |
| Heerlen to Sighisoara | 915.54 mi (1,473.41 km) |
| Heerlen to Simeria | 852.88 mi (1,372.58 km) |
| Heerlen to Sinaia | 976.48 mi (1,571.50 km) |
| Heerlen to Slatina | 961.04 mi (1,546.64 km) |
