| Abertawe to Oerlinghausen | 539.05 mi (867.51 km) |
| Abertawe to Oestrich-Winkel | 532.93 mi (857.66 km) |
| Abertawe to Offenburg | 569.62 mi (916.71 km) |
| Abertawe to Oftersheim | 571.58 mi (919.87 km) |
| Abertawe to Ohrdruf | 636.62 mi (1,024.54 km) |
| Abertawe to Ohringen | 614.34 mi (988.68 km) |
| Abertawe to Olbernhau | 750.31 mi (1,207.51 km) |
| Abertawe to Olching | 717.56 mi (1,154.80 km) |
| Abertawe to Oldenburg | 523.08 mi (841.81 km) |
| Abertawe to Oldenburg in Holstein | 643.23 mi (1,035.17 km) |
| Abertawe to Olfen | 485.24 mi (780.92 km) |
| Abertawe to Olpe | 509.98 mi (820.74 km) |
| Abertawe to Olsberg | 534.64 mi (860.42 km) |
| Abertawe to Oranienburg | 730.53 mi (1,175.67 km) |
| Abertawe to Ortenberg | 571.54 mi (919.81 km) |
