| Wallingford Center to Opwijk | 3,569.15 mi (5,743.99 km) |
| Wallingford Center to Ostend | 3,511.53 mi (5,651.26 km) |
| Wallingford Center to Oud-Heverlee | 3,592.13 mi (5,780.97 km) |
| Wallingford Center to Oud-Turnhout | 3,592.56 mi (5,781.66 km) |
| Wallingford Center to Oudenaarde | 3,548.39 mi (5,710.58 km) |
| Wallingford Center to Oudenburg | 3,515.83 mi (5,658.18 km) |
| Wallingford Center to Oupeye | 3,634.91 mi (5,849.82 km) |
| Wallingford Center to Overijse | 3,588.00 mi (5,774.32 km) |
| Wallingford Center to Overpelt | 3,612.52 mi (5,813.79 km) |
| Wallingford Center to Paal | 3,607.29 mi (5,805.37 km) |
| Wallingford Center to Peer | 3,616.17 mi (5,819.67 km) |
| Wallingford Center to Pepinster | 3,645.68 mi (5,867.16 km) |
| Wallingford Center to Peruwelz | 3,556.05 mi (5,722.91 km) |
| Wallingford Center to Perwez | 3,603.53 mi (5,799.33 km) |
| Wallingford Center to Philippeville | 3,603.74 mi (5,799.65 km) |
