| Caister-on-Sea to Sesimbra | 1,110.00 mi (1,786.38 km) |
| Caister-on-Sea to Setubal | 1,100.33 mi (1,770.82 km) |
| Caister-on-Sea to Sever do Vouga | 950.37 mi (1,529.48 km) |
| Caister-on-Sea to Silves | 1,175.99 mi (1,892.57 km) |
| Caister-on-Sea to Sines | 1,135.77 mi (1,827.85 km) |
| Caister-on-Sea to Sintra | 1,094.27 mi (1,761.05 km) |
| Caister-on-Sea to Sobrado de Paiva | 929.51 mi (1,495.90 km) |
| Caister-on-Sea to Sobral de Monte Agraco | 1,075.17 mi (1,730.31 km) |
| Caister-on-Sea to Soure | 998.92 mi (1,607.61 km) |
| Caister-on-Sea to Tabua | 965.82 mi (1,554.34 km) |
| Caister-on-Sea to Tavira | 1,165.17 mi (1,875.15 km) |
| Caister-on-Sea to Tomar | 1,022.10 mi (1,644.92 km) |
| Caister-on-Sea to Tondela | 957.28 mi (1,540.59 km) |
| Caister-on-Sea to Torre de Moncorvo | 893.44 mi (1,437.86 km) |
| Caister-on-Sea to Torres Novas | 1,033.07 mi (1,662.56 km) |
