| Holbrook to Noventa Vicentina | 4,079.62 mi (6,565.52 km) |
| Holbrook to Novi di Modena | 4,065.33 mi (6,542.52 km) |
| Holbrook to Novi Ligure | 3,978.04 mi (6,402.04 km) |
| Holbrook to Nuoro | 4,150.01 mi (6,678.80 km) |
| Holbrook to Occhiobello | 4,093.64 mi (6,588.07 km) |
| Holbrook to Oderzo | 4,103.94 mi (6,604.65 km) |
| Holbrook to Oggiono | 3,970.04 mi (6,389.17 km) |
| Holbrook to Olbia | 4,136.93 mi (6,657.74 km) |
| Holbrook to Oleggio | 3,944.96 mi (6,348.80 km) |
| Holbrook to Olgiate Comasco | 3,953.59 mi (6,362.68 km) |
| Holbrook to Olgiate Olona | 3,954.69 mi (6,364.46 km) |
| Holbrook to Omegna | 3,926.57 mi (6,319.21 km) |
| Holbrook to Opera | 3,976.93 mi (6,400.26 km) |
| Holbrook to Oppeano | 4,064.11 mi (6,540.55 km) |
| Holbrook to Orbassano | 3,915.79 mi (6,301.86 km) |
