| Altoona to Noventa Vicentina | 4,316.37 mi (6,946.53 km) |
| Altoona to Novi di Modena | 4,303.74 mi (6,926.20 km) |
| Altoona to Novi Ligure | 4,218.93 mi (6,789.71 km) |
| Altoona to Nuoro | 4,400.71 mi (7,082.25 km) |
| Altoona to Occhiobello | 4,331.27 mi (6,970.50 km) |
| Altoona to Oderzo | 4,338.37 mi (6,981.92 km) |
| Altoona to Oggiono | 4,207.71 mi (6,771.65 km) |
| Altoona to Olbia | 4,386.17 mi (7,058.86 km) |
| Altoona to Oleggio | 4,183.82 mi (6,733.20 km) |
| Altoona to Olgiate Comasco | 4,191.63 mi (6,745.78 km) |
| Altoona to Olgiate Olona | 4,193.22 mi (6,748.33 km) |
| Altoona to Omegna | 4,164.91 mi (6,702.78 km) |
| Altoona to Opera | 4,215.78 mi (6,784.65 km) |
| Altoona to Oppeano | 4,301.18 mi (6,922.08 km) |
| Altoona to Orbassano | 4,157.26 mi (6,690.47 km) |
