| Billericay to Oberkirch | 401.20 mi (645.68 km) |
| Billericay to Obernburg am Main | 400.68 mi (644.83 km) |
| Billericay to Obernkirchen | 372.88 mi (600.09 km) |
| Billericay to Oberschleissheim | 547.19 mi (880.61 km) |
| Billericay to Oberstdorf | 529.01 mi (851.36 km) |
| Billericay to Obertraubling | 549.46 mi (884.28 km) |
| Billericay to Obertshausen | 382.37 mi (615.36 km) |
| Billericay to Oberursel | 368.55 mi (593.12 km) |
| Billericay to Ochsenfurt | 443.93 mi (714.43 km) |
| Billericay to Ochsenhausen | 489.96 mi (788.52 km) |
| Billericay to Ochtrup | 291.23 mi (468.70 km) |
| Billericay to Odenthal | 291.97 mi (469.88 km) |
| Billericay to Oelde | 331.01 mi (532.71 km) |
| Billericay to Oelsnitz | 516.82 mi (831.74 km) |
| Billericay to Oer-Erkenschwick | 292.90 mi (471.37 km) |
