| Montalegre to Sestao | 264.30 mi (425.35 km) |
| Montalegre to Sevilla | 330.87 mi (532.49 km) |
| Montalegre to Sevilla La Nueva | 220.88 mi (355.47 km) |
| Montalegre to Silla | 422.78 mi (680.40 km) |
| Montalegre to Silleda | 64.66 mi (104.06 km) |
| Montalegre to Sitges | 497.75 mi (801.06 km) |
| Montalegre to Socuellamos | 315.15 mi (507.18 km) |
| Montalegre to Soller | 566.48 mi (911.66 km) |
| Montalegre to Solsona | 478.60 mi (770.24 km) |
| Montalegre to Son Servera | 602.96 mi (970.37 km) |
| Montalegre to Sonseca | 248.83 mi (400.46 km) |
| Montalegre to Sopelana | 267.33 mi (430.23 km) |
| Montalegre to Soria | 274.28 mi (441.42 km) |
| Montalegre to Suances | 220.33 mi (354.58 km) |
| Montalegre to Sueca | 432.44 mi (695.95 km) |
