| Boadilla del Monte to Noventa Vicentina | 848.40 mi (1,365.37 km) |
| Boadilla del Monte to Novi di Modena | 810.85 mi (1,304.93 km) |
| Boadilla del Monte to Novi Ligure | 709.79 mi (1,142.29 km) |
| Boadilla del Monte to Nuoro | 694.76 mi (1,118.11 km) |
| Boadilla del Monte to Occhiobello | 843.28 mi (1,357.12 km) |
| Boadilla del Monte to Oderzo | 903.26 mi (1,453.65 km) |
| Boadilla del Monte to Oggiono | 762.30 mi (1,226.80 km) |
| Boadilla del Monte to Olbia | 701.21 mi (1,128.49 km) |
| Boadilla del Monte to Oleggio | 725.59 mi (1,167.72 km) |
| Boadilla del Monte to Olgiate Comasco | 745.54 mi (1,199.84 km) |
| Boadilla del Monte to Olgiate Olona | 737.51 mi (1,186.91 km) |
| Boadilla del Monte to Omegna | 724.25 mi (1,165.57 km) |
| Boadilla del Monte to Opera | 745.31 mi (1,199.45 km) |
| Boadilla del Monte to Oppeano | 832.61 mi (1,339.96 km) |
| Boadilla del Monte to Orbassano | 659.99 mi (1,062.15 km) |
