| Wallingford to Octeville | 138.14 mi (222.31 km) |
| Wallingford to Oignies | 195.20 mi (314.15 km) |
| Wallingford to Oissel | 183.88 mi (295.93 km) |
| Wallingford to Olivet | 291.24 mi (468.71 km) |
| Wallingford to Ollioules | 668.68 mi (1,076.13 km) |
| Wallingford to Olonne-sur-Mer | 351.04 mi (564.94 km) |
| Wallingford to Oloron-Sainte-Marie | 581.22 mi (935.38 km) |
| Wallingford to Onet Village | 528.36 mi (850.32 km) |
| Wallingford to Onnaing | 221.74 mi (356.86 km) |
| Wallingford to Orange | 583.83 mi (939.58 km) |
| Wallingford to Orchies | 205.07 mi (330.02 km) |
| Wallingford to Orleans | 289.03 mi (465.15 km) |
| Wallingford to Orly | 251.23 mi (404.32 km) |
| Wallingford to Ormesson-sur-Marne | 252.99 mi (407.15 km) |
| Wallingford to Orsay | 248.30 mi (399.61 km) |
