| Felixstowe to Opwijk | 140.00 mi (225.31 km) |
| Felixstowe to Ostend | 84.43 mi (135.88 km) |
| Felixstowe to Oud-Heverlee | 162.84 mi (262.07 km) |
| Felixstowe to Oud-Turnhout | 162.00 mi (260.72 km) |
| Felixstowe to Oudenaarde | 123.74 mi (199.14 km) |
| Felixstowe to Oudenburg | 88.99 mi (143.22 km) |
| Felixstowe to Oupeye | 204.52 mi (329.14 km) |
| Felixstowe to Overijse | 159.63 mi (256.89 km) |
| Felixstowe to Overpelt | 181.95 mi (292.82 km) |
| Felixstowe to Paal | 176.31 mi (283.74 km) |
| Felixstowe to Peer | 185.34 mi (298.27 km) |
| Felixstowe to Pepinster | 215.78 mi (347.27 km) |
| Felixstowe to Peruwelz | 138.98 mi (223.66 km) |
| Felixstowe to Perwez | 175.93 mi (283.14 km) |
| Felixstowe to Philippeville | 184.70 mi (297.25 km) |
