| Bad Neuenahr-Ahrweiler to Oria | 859.01 mi (1,382.45 km) |
| Bad Neuenahr-Ahrweiler to Oristano | 738.55 mi (1,188.58 km) |
| Bad Neuenahr-Ahrweiler to Orta Nova | 757.80 mi (1,219.55 km) |
| Bad Neuenahr-Ahrweiler to Orte | 611.90 mi (984.75 km) |
| Bad Neuenahr-Ahrweiler to Ortona | 663.28 mi (1,067.45 km) |
| Bad Neuenahr-Ahrweiler to Orvieto | 590.10 mi (949.68 km) |
| Bad Neuenahr-Ahrweiler to Orzinuovi | 378.57 mi (609.25 km) |
| Bad Neuenahr-Ahrweiler to Osimo | 572.31 mi (921.04 km) |
| Bad Neuenahr-Ahrweiler to Ospitaletto | 370.78 mi (596.71 km) |
| Bad Neuenahr-Ahrweiler to Ostuni | 844.05 mi (1,358.37 km) |
| Bad Neuenahr-Ahrweiler to Ottaviano | 757.39 mi (1,218.90 km) |
| Bad Neuenahr-Ahrweiler to Ovada | 414.21 mi (666.61 km) |
| Bad Neuenahr-Ahrweiler to Ozieri | 694.14 mi (1,117.11 km) |
| Bad Neuenahr-Ahrweiler to Paceco | 908.01 mi (1,461.30 km) |
| Bad Neuenahr-Ahrweiler to Pachino | 1,034.09 mi (1,664.21 km) |
