| Irving to Sesimbra | 4,752.95 mi (7,649.14 km) |
| Irving to Setubal | 4,760.60 mi (7,661.45 km) |
| Irving to Sever do Vouga | 4,719.88 mi (7,595.92 km) |
| Irving to Silves | 4,823.60 mi (7,762.84 km) |
| Irving to Sines | 4,779.21 mi (7,691.39 km) |
| Irving to Sintra | 4,728.27 mi (7,609.41 km) |
| Irving to Sobrado de Paiva | 4,715.74 mi (7,589.25 km) |
| Irving to Sobral de Monte Agraco | 4,733.22 mi (7,617.37 km) |
| Irving to Soure | 4,727.46 mi (7,608.11 km) |
| Irving to Tabua | 4,746.97 mi (7,639.51 km) |
| Irving to Tavira | 4,864.59 mi (7,828.80 km) |
| Irving to Tomar | 4,751.25 mi (7,646.40 km) |
| Irving to Tondela | 4,739.74 mi (7,627.87 km) |
| Irving to Torre de Moncorvo | 4,763.99 mi (7,666.91 km) |
| Irving to Torres Novas | 4,749.65 mi (7,643.83 km) |
