| Sumner to Sesimbra | 5,229.00 mi (8,415.27 km) |
| Sumner to Setubal | 5,231.95 mi (8,420.02 km) |
| Sumner to Sever do Vouga | 5,133.26 mi (8,261.18 km) |
| Sumner to Silves | 5,318.76 mi (8,559.72 km) |
| Sumner to Sines | 5,263.09 mi (8,470.12 km) |
| Sumner to Sintra | 5,200.19 mi (8,368.89 km) |
| Sumner to Sobrado de Paiva | 5,120.80 mi (8,241.12 km) |
| Sumner to Sobral de Monte Agraco | 5,196.87 mi (8,363.56 km) |
| Sumner to Soure | 5,160.28 mi (8,304.66 km) |
| Sumner to Tabua | 5,164.39 mi (8,311.28 km) |
| Sumner to Tavira | 5,350.11 mi (8,610.17 km) |
| Sumner to Tomar | 5,191.46 mi (8,354.85 km) |
| Sumner to Tondela | 5,154.28 mi (8,295.01 km) |
| Sumner to Torre de Moncorvo | 5,149.82 mi (8,287.84 km) |
| Sumner to Torres Novas | 5,194.52 mi (8,359.77 km) |
