| Humenne to Oberkirch | 629.68 mi (1,013.37 km) |
| Humenne to Obernburg am Main | 576.80 mi (928.27 km) |
| Humenne to Obernkirchen | 605.18 mi (973.95 km) |
| Humenne to Oberschleissheim | 474.52 mi (763.67 km) |
| Humenne to Oberstdorf | 545.47 mi (877.84 km) |
| Humenne to Obertraubling | 441.64 mi (710.74 km) |
| Humenne to Obertshausen | 591.02 mi (951.16 km) |
| Humenne to Oberursel | 602.84 mi (970.18 km) |
| Humenne to Ochsenfurt | 535.25 mi (861.40 km) |
| Humenne to Ochsenhausen | 550.11 mi (885.32 km) |
| Humenne to Ochtrup | 682.72 mi (1,098.74 km) |
| Humenne to Odenthal | 671.63 mi (1,080.88 km) |
| Humenne to Oelde | 637.12 mi (1,025.35 km) |
| Humenne to Oelsnitz | 446.98 mi (719.35 km) |
| Humenne to Oer-Erkenschwick | 672.15 mi (1,081.72 km) |
