| Harlingen to Sangeorz-Bai | 936.13 mi (1,506.55 km) |
| Harlingen to Sannicolau Mare | 835.92 mi (1,345.29 km) |
| Harlingen to Santana | 855.43 mi (1,376.68 km) |
| Harlingen to Satu Mare | 850.15 mi (1,368.19 km) |
| Harlingen to Scobinti | 1,025.38 mi (1,650.19 km) |
| Harlingen to Scornicesti | 1,047.68 mi (1,686.08 km) |
| Harlingen to Sebes | 949.58 mi (1,528.20 km) |
| Harlingen to Seini | 867.22 mi (1,395.66 km) |
| Harlingen to Sfantu-Gheorghe | 1,038.41 mi (1,671.15 km) |
| Harlingen to Sibiu | 978.72 mi (1,575.10 km) |
| Harlingen to Sighetu Marmatiei | 884.64 mi (1,423.70 km) |
| Harlingen to Sighisoara | 985.45 mi (1,585.92 km) |
| Harlingen to Simeria | 933.32 mi (1,502.03 km) |
| Harlingen to Sinaia | 1,050.85 mi (1,691.17 km) |
| Harlingen to Slatina | 1,047.28 mi (1,685.43 km) |
