| Muscle Shoals to Sesimbra | 4,226.22 mi (6,801.45 km) |
| Muscle Shoals to Setubal | 4,234.32 mi (6,814.48 km) |
| Muscle Shoals to Sever do Vouga | 4,200.99 mi (6,760.84 km) |
| Muscle Shoals to Silves | 4,294.08 mi (6,910.65 km) |
| Muscle Shoals to Sines | 4,251.34 mi (6,841.87 km) |
| Muscle Shoals to Sintra | 4,202.27 mi (6,762.90 km) |
| Muscle Shoals to Sobrado de Paiva | 4,197.96 mi (6,755.96 km) |
| Muscle Shoals to Sobral de Monte Agraco | 4,208.11 mi (6,772.29 km) |
| Muscle Shoals to Soure | 4,206.06 mi (6,769.00 km) |
| Muscle Shoals to Tabua | 4,227.23 mi (6,803.07 km) |
| Muscle Shoals to Tavira | 4,335.67 mi (6,977.59 km) |
| Muscle Shoals to Tomar | 4,228.68 mi (6,805.41 km) |
| Muscle Shoals to Tondela | 4,220.44 mi (6,792.15 km) |
| Muscle Shoals to Torre de Moncorvo | 4,248.06 mi (6,836.59 km) |
| Muscle Shoals to Torres Novas | 4,226.55 mi (6,801.97 km) |
