| Pont-y-pwl to Oberkirch | 538.59 mi (866.77 km) |
| Pont-y-pwl to Obernburg am Main | 546.95 mi (880.23 km) |
| Pont-y-pwl to Obernkirchen | 518.24 mi (834.02 km) |
| Pont-y-pwl to Oberschleissheim | 690.08 mi (1,110.58 km) |
| Pont-y-pwl to Oberstdorf | 665.31 mi (1,070.72 km) |
| Pont-y-pwl to Obertraubling | 695.41 mi (1,119.15 km) |
| Pont-y-pwl to Obertshausen | 529.16 mi (851.60 km) |
| Pont-y-pwl to Oberursel | 515.59 mi (829.77 km) |
| Pont-y-pwl to Ochsenfurt | 590.29 mi (949.98 km) |
| Pont-y-pwl to Ochsenhausen | 629.17 mi (1,012.55 km) |
| Pont-y-pwl to Ochtrup | 436.68 mi (702.77 km) |
| Pont-y-pwl to Odenthal | 440.24 mi (708.49 km) |
| Pont-y-pwl to Oelde | 478.12 mi (769.46 km) |
| Pont-y-pwl to Oelsnitz | 665.12 mi (1,070.40 km) |
| Pont-y-pwl to Oer-Erkenschwick | 440.64 mi (709.15 km) |
