| Middlesbrough to Sesimbra | 1,173.97 mi (1,889.33 km) |
| Middlesbrough to Setubal | 1,165.60 mi (1,875.85 km) |
| Middlesbrough to Sever do Vouga | 1,011.17 mi (1,627.32 km) |
| Middlesbrough to Silves | 1,248.89 mi (2,009.89 km) |
| Middlesbrough to Sines | 1,203.19 mi (1,936.34 km) |
| Middlesbrough to Sintra | 1,154.73 mi (1,858.35 km) |
| Middlesbrough to Sobrado de Paiva | 989.81 mi (1,592.95 km) |
| Middlesbrough to Sobral de Monte Agraco | 1,136.62 mi (1,829.22 km) |
| Middlesbrough to Soure | 1,060.42 mi (1,706.58 km) |
| Middlesbrough to Tabua | 1,031.06 mi (1,659.33 km) |
| Middlesbrough to Tavira | 1,243.98 mi (2,001.99 km) |
| Middlesbrough to Tomar | 1,087.16 mi (1,749.62 km) |
| Middlesbrough to Tondela | 1,021.42 mi (1,643.81 km) |
| Middlesbrough to Torre de Moncorvo | 962.95 mi (1,549.71 km) |
| Middlesbrough to Torres Novas | 1,097.70 mi (1,766.58 km) |
