| Grefrath to Setubal | 1,152.39 mi (1,854.59 km) |
| Grefrath to Sever do Vouga | 1,013.38 mi (1,630.88 km) |
| Grefrath to Silves | 1,216.00 mi (1,956.96 km) |
| Grefrath to Sines | 1,184.02 mi (1,905.50 km) |
| Grefrath to Sintra | 1,152.47 mi (1,854.72 km) |
| Grefrath to Sobrado de Paiva | 994.00 mi (1,599.68 km) |
| Grefrath to Sobral de Monte Agraco | 1,132.76 mi (1,823.01 km) |
| Grefrath to Soure | 1,059.16 mi (1,704.55 km) |
| Grefrath to Tabua | 1,022.74 mi (1,645.94 km) |
| Grefrath to Tavira | 1,197.68 mi (1,927.48 km) |
| Grefrath to Tomar | 1,077.09 mi (1,733.40 km) |
| Grefrath to Tondela | 1,015.92 mi (1,634.96 km) |
| Grefrath to Torre de Moncorvo | 948.18 mi (1,525.94 km) |
| Grefrath to Torres Novas | 1,088.19 mi (1,751.27 km) |
| Grefrath to Torres Vedras | 1,132.78 mi (1,823.04 km) |
