| Elk River to Sesimbra | 4,167.23 mi (6,706.50 km) |
| Elk River to Setubal | 4,172.94 mi (6,715.70 km) |
| Elk River to Sever do Vouga | 4,105.95 mi (6,607.89 km) |
| Elk River to Silves | 4,248.07 mi (6,836.61 km) |
| Elk River to Sines | 4,197.59 mi (6,755.37 km) |
| Elk River to Sintra | 4,140.14 mi (6,662.91 km) |
| Elk River to Sobrado de Paiva | 4,098.17 mi (6,595.36 km) |
| Elk River to Sobral de Monte Agraco | 4,141.51 mi (6,665.12 km) |
| Elk River to Soure | 4,122.07 mi (6,633.83 km) |
| Elk River to Tabua | 4,135.38 mi (6,655.25 km) |
| Elk River to Tavira | 4,285.58 mi (6,896.97 km) |
| Elk River to Tomar | 4,149.62 mi (6,678.16 km) |
| Elk River to Tondela | 4,126.75 mi (6,641.36 km) |
| Elk River to Torre de Moncorvo | 4,139.41 mi (6,661.74 km) |
| Elk River to Torres Novas | 4,150.02 mi (6,678.81 km) |
