| Llantwit Major to Opwijk | 332.89 mi (535.74 km) |
| Llantwit Major to Ostend | 276.34 mi (444.72 km) |
| Llantwit Major to Oud-Heverlee | 355.13 mi (571.52 km) |
| Llantwit Major to Oud-Turnhout | 364.76 mi (587.02 km) |
| Llantwit Major to Oudenaarde | 309.06 mi (497.38 km) |
| Llantwit Major to Oudenburg | 280.08 mi (450.75 km) |
| Llantwit Major to Oupeye | 398.64 mi (641.55 km) |
| Llantwit Major to Overijse | 349.98 mi (563.24 km) |
| Llantwit Major to Overpelt | 384.01 mi (618.01 km) |
| Llantwit Major to Paal | 374.85 mi (603.27 km) |
| Llantwit Major to Peer | 386.19 mi (621.52 km) |
| Llantwit Major to Pepinster | 407.99 mi (656.60 km) |
| Llantwit Major to Peruwelz | 313.12 mi (503.92 km) |
| Llantwit Major to Perwez | 364.17 mi (586.08 km) |
| Llantwit Major to Philippeville | 359.99 mi (579.35 km) |
