| Hays to Oberkirch | 4,944.85 mi (7,957.97 km) |
| Hays to Obernburg am Main | 4,925.83 mi (7,927.36 km) |
| Hays to Obernkirchen | 4,820.80 mi (7,758.32 km) |
| Hays to Oberschleissheim | 5,080.51 mi (8,176.28 km) |
| Hays to Oberstdorf | 5,072.62 mi (8,163.60 km) |
| Hays to Obertraubling | 5,068.96 mi (8,157.71 km) |
| Hays to Obertshausen | 4,905.35 mi (7,894.40 km) |
| Hays to Oberursel | 4,890.59 mi (7,870.64 km) |
| Hays to Ochsenfurt | 4,966.17 mi (7,992.28 km) |
| Hays to Ochsenhausen | 5,031.46 mi (8,097.35 km) |
| Hays to Ochtrup | 4,758.63 mi (7,658.27 km) |
| Hays to Odenthal | 4,804.87 mi (7,732.69 km) |
| Hays to Oelde | 4,806.68 mi (7,735.60 km) |
| Hays to Oelsnitz | 5,003.55 mi (8,052.44 km) |
| Hays to Oer-Erkenschwick | 4,784.09 mi (7,699.26 km) |
