| Connahs Quay to Oberkirch | 582.66 mi (937.71 km) |
| Connahs Quay to Obernburg am Main | 572.98 mi (922.13 km) |
| Connahs Quay to Obernkirchen | 512.85 mi (825.35 km) |
| Connahs Quay to Oberschleissheim | 723.91 mi (1,165.03 km) |
| Connahs Quay to Oberstdorf | 710.47 mi (1,143.40 km) |
| Connahs Quay to Obertraubling | 721.18 mi (1,160.62 km) |
| Connahs Quay to Obertshausen | 553.51 mi (890.79 km) |
| Connahs Quay to Oberursel | 539.08 mi (867.57 km) |
| Connahs Quay to Ochsenfurt | 615.53 mi (990.60 km) |
| Connahs Quay to Ochsenhausen | 670.12 mi (1,078.45 km) |
| Connahs Quay to Ochtrup | 434.21 mi (698.79 km) |
| Connahs Quay to Odenthal | 456.71 mi (735.00 km) |
| Connahs Quay to Oelde | 480.19 mi (772.79 km) |
| Connahs Quay to Oelsnitz | 676.92 mi (1,089.40 km) |
| Connahs Quay to Oer-Erkenschwick | 447.25 mi (719.78 km) |
