| Forest Lake to Sesimbra | 4,143.00 mi (6,667.52 km) |
| Forest Lake to Setubal | 4,148.77 mi (6,676.80 km) |
| Forest Lake to Sever do Vouga | 4,082.53 mi (6,570.20 km) |
| Forest Lake to Silves | 4,223.60 mi (6,797.23 km) |
| Forest Lake to Sines | 4,173.26 mi (6,716.22 km) |
| Forest Lake to Sintra | 4,115.97 mi (6,624.02 km) |
| Forest Lake to Sobrado de Paiva | 4,074.86 mi (6,557.86 km) |
| Forest Lake to Sobral de Monte Agraco | 4,117.44 mi (6,626.38 km) |
| Forest Lake to Soure | 4,098.40 mi (6,595.74 km) |
| Forest Lake to Tabua | 4,111.90 mi (6,617.47 km) |
| Forest Lake to Tavira | 4,261.22 mi (6,857.77 km) |
| Forest Lake to Tomar | 4,125.85 mi (6,639.91 km) |
| Forest Lake to Tondela | 4,103.31 mi (6,603.64 km) |
| Forest Lake to Torre de Moncorvo | 4,116.35 mi (6,624.63 km) |
| Forest Lake to Torres Novas | 4,126.19 mi (6,640.46 km) |
