| Abbots Langley to Oerlinghausen | 387.97 mi (624.38 km) |
| Abbots Langley to Oestrich-Winkel | 385.21 mi (619.94 km) |
| Abbots Langley to Offenburg | 432.00 mi (695.24 km) |
| Abbots Langley to Oftersheim | 426.45 mi (686.30 km) |
| Abbots Langley to Ohrdruf | 485.27 mi (780.97 km) |
| Abbots Langley to Ohringen | 468.75 mi (754.39 km) |
| Abbots Langley to Olbernhau | 598.84 mi (963.74 km) |
| Abbots Langley to Olching | 574.10 mi (923.93 km) |
| Abbots Langley to Oldenburg | 376.78 mi (606.37 km) |
| Abbots Langley to Oldenburg in Holstein | 502.29 mi (808.36 km) |
| Abbots Langley to Olfen | 333.76 mi (537.14 km) |
| Abbots Langley to Olpe | 358.84 mi (577.50 km) |
| Abbots Langley to Olsberg | 383.09 mi (616.52 km) |
| Abbots Langley to Oranienburg | 581.48 mi (935.80 km) |
| Abbots Langley to Ortenberg | 421.61 mi (678.52 km) |
