| Montesilvano to Novi di Modena | 230.94 mi (371.66 km) |
| Montesilvano to Novi Ligure | 309.74 mi (498.48 km) |
| Montesilvano to Nuoro | 292.04 mi (469.99 km) |
| Montesilvano to Occhiobello | 210.01 mi (337.98 km) |
| Montesilvano to Oderzo | 240.16 mi (386.51 km) |
| Montesilvano to Oggiono | 327.96 mi (527.80 km) |
| Montesilvano to Olbia | 263.93 mi (424.75 km) |
| Montesilvano to Oleggio | 346.96 mi (558.37 km) |
| Montesilvano to Olgiate Comasco | 341.98 mi (550.36 km) |
| Montesilvano to Olgiate Olona | 338.66 mi (545.02 km) |
| Montesilvano to Omegna | 367.18 mi (590.91 km) |
| Montesilvano to Opera | 315.34 mi (507.49 km) |
| Montesilvano to Oppeano | 242.55 mi (390.35 km) |
| Montesilvano to Orbassano | 372.07 mi (598.78 km) |
| Montesilvano to Orbetello | 149.75 mi (240.99 km) |
