| Prestonpans to Oerlinghausen | 546.26 mi (879.12 km) |
| Prestonpans to Oestrich-Winkel | 613.11 mi (986.70 km) |
| Prestonpans to Offenburg | 691.76 mi (1,113.28 km) |
| Prestonpans to Oftersheim | 662.75 mi (1,066.59 km) |
| Prestonpans to Ohrdruf | 664.60 mi (1,069.56 km) |
| Prestonpans to Ohringen | 699.44 mi (1,125.65 km) |
| Prestonpans to Olbernhau | 762.98 mi (1,227.89 km) |
| Prestonpans to Olching | 806.52 mi (1,297.97 km) |
| Prestonpans to Oldenburg | 487.52 mi (784.58 km) |
| Prestonpans to Oldenburg in Holstein | 557.76 mi (897.62 km) |
| Prestonpans to Olfen | 512.79 mi (825.25 km) |
| Prestonpans to Olpe | 558.92 mi (899.49 km) |
| Prestonpans to Olsberg | 565.51 mi (910.10 km) |
| Prestonpans to Oranienburg | 686.84 mi (1,105.36 km) |
| Prestonpans to Ortenberg | 629.22 mi (1,012.63 km) |
