| Altenholz to Oria | 1,020.93 mi (1,643.04 km) |
| Altenholz to Oristano | 1,004.01 mi (1,615.79 km) |
| Altenholz to Orta Nova | 938.54 mi (1,510.44 km) |
| Altenholz to Orte | 831.28 mi (1,337.82 km) |
| Altenholz to Ortona | 854.89 mi (1,375.81 km) |
| Altenholz to Orvieto | 812.09 mi (1,306.93 km) |
| Altenholz to Orzinuovi | 621.90 mi (1,000.86 km) |
| Altenholz to Osimo | 769.21 mi (1,237.93 km) |
| Altenholz to Ospitaletto | 611.12 mi (983.50 km) |
| Altenholz to Ostuni | 1,004.77 mi (1,617.02 km) |
| Altenholz to Ottaviano | 957.36 mi (1,540.71 km) |
| Altenholz to Ovada | 677.65 mi (1,090.58 km) |
| Altenholz to Ozieri | 955.96 mi (1,538.46 km) |
| Altenholz to Paceco | 1,139.99 mi (1,834.63 km) |
| Altenholz to Pachino | 1,244.43 mi (2,002.72 km) |
