| Suwalki to Setubal | 1,836.33 mi (2,955.29 km) |
| Suwalki to Sever do Vouga | 1,708.91 mi (2,750.23 km) |
| Suwalki to Silves | 1,887.47 mi (3,037.58 km) |
| Suwalki to Sines | 1,863.92 mi (2,999.68 km) |
| Suwalki to Sintra | 1,841.26 mi (2,963.23 km) |
| Suwalki to Sobrado de Paiva | 1,690.94 mi (2,721.31 km) |
| Suwalki to Sobral de Monte Agraco | 1,821.57 mi (2,931.54 km) |
| Suwalki to Soure | 1,751.69 mi (2,819.08 km) |
| Suwalki to Tabua | 1,713.88 mi (2,758.23 km) |
| Suwalki to Tavira | 1,862.36 mi (2,997.18 km) |
| Suwalki to Tomar | 1,765.34 mi (2,841.04 km) |
| Suwalki to Tondela | 1,708.44 mi (2,749.47 km) |
| Suwalki to Torre de Moncorvo | 1,639.93 mi (2,639.22 km) |
| Suwalki to Torres Novas | 1,776.25 mi (2,858.60 km) |
| Suwalki to Torres Vedras | 1,822.68 mi (2,933.33 km) |
