| Flagstaff to Sesimbra | 5,342.23 mi (8,597.49 km) |
| Flagstaff to Setubal | 5,348.18 mi (8,607.06 km) |
| Flagstaff to Sever do Vouga | 5,283.16 mi (8,502.42 km) |
| Flagstaff to Silves | 5,421.95 mi (8,725.78 km) |
| Flagstaff to Sines | 5,372.16 mi (8,645.66 km) |
| Flagstaff to Sintra | 5,315.37 mi (8,554.27 km) |
| Flagstaff to Sobrado de Paiva | 5,275.52 mi (8,490.12 km) |
| Flagstaff to Sobral de Monte Agraco | 5,317.12 mi (8,557.08 km) |
| Flagstaff to Soure | 5,298.81 mi (8,527.62 km) |
| Flagstaff to Tabua | 5,312.50 mi (8,549.64 km) |
| Flagstaff to Tavira | 5,459.98 mi (8,786.99 km) |
| Flagstaff to Tomar | 5,326.12 mi (8,571.57 km) |
| Flagstaff to Tondela | 5,303.93 mi (8,535.85 km) |
| Flagstaff to Torre de Moncorvo | 5,316.95 mi (8,556.80 km) |
| Flagstaff to Torres Novas | 5,326.37 mi (8,571.96 km) |
