| Montesilvano to Sestao | 868.32 mi (1,397.42 km) |
| Montesilvano to Sevilla | 1,125.07 mi (1,810.63 km) |
| Montesilvano to Sevilla La Nueva | 951.60 mi (1,531.45 km) |
| Montesilvano to Silla | 789.39 mi (1,270.39 km) |
| Montesilvano to Silleda | 1,134.97 mi (1,826.56 km) |
| Montesilvano to Sitges | 640.68 mi (1,031.07 km) |
| Montesilvano to Socuellamos | 910.66 mi (1,465.57 km) |
| Montesilvano to Soller | 624.68 mi (1,005.33 km) |
| Montesilvano to Solsona | 646.39 mi (1,040.26 km) |
| Montesilvano to Son Servera | 596.01 mi (959.19 km) |
| Montesilvano to Sonseca | 960.15 mi (1,545.20 km) |
| Montesilvano to Sopelana | 866.81 mi (1,395.00 km) |
| Montesilvano to Soria | 851.49 mi (1,370.34 km) |
| Montesilvano to Suances | 920.39 mi (1,481.22 km) |
| Montesilvano to Sueca | 788.40 mi (1,268.81 km) |
