| Hayes to Oberkirch | 429.62 mi (691.41 km) |
| Hayes to Obernburg am Main | 433.99 mi (698.44 km) |
| Hayes to Obernkirchen | 409.78 mi (659.48 km) |
| Hayes to Oberschleissheim | 578.50 mi (931.01 km) |
| Hayes to Oberstdorf | 557.12 mi (896.60 km) |
| Hayes to Obertraubling | 582.58 mi (937.57 km) |
| Hayes to Obertshausen | 416.07 mi (669.60 km) |
| Hayes to Oberursel | 402.46 mi (647.69 km) |
| Hayes to Ochsenfurt | 477.32 mi (768.17 km) |
| Hayes to Ochsenhausen | 519.37 mi (835.84 km) |
| Hayes to Ochtrup | 328.14 mi (528.10 km) |
| Hayes to Odenthal | 327.36 mi (526.83 km) |
| Hayes to Oelde | 367.71 mi (591.77 km) |
| Hayes to Oelsnitz | 552.26 mi (888.78 km) |
| Hayes to Oer-Erkenschwick | 329.39 mi (530.10 km) |
