| Delaware to Sesimbra | 3,832.04 mi (6,167.07 km) |
| Delaware to Setubal | 3,839.46 mi (6,179.02 km) |
| Delaware to Sever do Vouga | 3,796.23 mi (6,109.44 km) |
| Delaware to Silves | 3,904.25 mi (6,283.28 km) |
| Delaware to Sines | 3,858.89 mi (6,210.28 km) |
| Delaware to Sintra | 3,807.01 mi (6,126.80 km) |
| Delaware to Sobrado de Paiva | 3,791.87 mi (6,102.42 km) |
| Delaware to Sobral de Monte Agraco | 3,811.55 mi (6,134.10 km) |
| Delaware to Soure | 3,804.44 mi (6,122.65 km) |
| Delaware to Tabua | 3,823.50 mi (6,153.32 km) |
| Delaware to Tavira | 3,944.81 mi (6,348.55 km) |
| Delaware to Tomar | 3,828.59 mi (6,161.52 km) |
| Delaware to Tondela | 3,816.16 mi (6,141.51 km) |
| Delaware to Torre de Moncorvo | 3,839.83 mi (6,179.60 km) |
| Delaware to Torres Novas | 3,827.18 mi (6,159.25 km) |
