| Orta Nova to Oberkirch | 621.32 mi (999.92 km) |
| Orta Nova to Obernburg am Main | 667.66 mi (1,074.49 km) |
| Orta Nova to Obernkirchen | 816.58 mi (1,314.15 km) |
| Orta Nova to Oberschleissheim | 519.28 mi (835.69 km) |
| Orta Nova to Oberstdorf | 498.10 mi (801.62 km) |
| Orta Nova to Obertraubling | 554.92 mi (893.06 km) |
| Orta Nova to Obertshausen | 688.14 mi (1,107.45 km) |
| Orta Nova to Oberursel | 702.13 mi (1,129.97 km) |
| Orta Nova to Ochsenfurt | 636.06 mi (1,023.65 km) |
| Orta Nova to Ochsenhausen | 544.67 mi (876.57 km) |
| Orta Nova to Ochtrup | 851.40 mi (1,370.19 km) |
| Orta Nova to Odenthal | 785.22 mi (1,263.68 km) |
| Orta Nova to Oelde | 808.60 mi (1,301.32 km) |
| Orta Nova to Oelsnitz | 650.32 mi (1,046.59 km) |
| Orta Nova to Oer-Erkenschwick | 817.03 mi (1,314.88 km) |
