| Thorne to Octeville | 276.65 mi (445.22 km) |
| Thorne to Oignies | 274.23 mi (441.34 km) |
| Thorne to Oissel | 307.66 mi (495.13 km) |
| Thorne to Olivet | 416.03 mi (669.54 km) |
| Thorne to Ollioules | 787.01 mi (1,266.58 km) |
| Thorne to Olonne-sur-Mer | 489.97 mi (788.52 km) |
| Thorne to Oloron-Sainte-Marie | 719.72 mi (1,158.28 km) |
| Thorne to Onet Village | 658.39 mi (1,059.57 km) |
| Thorne to Onnaing | 294.98 mi (474.72 km) |
| Thorne to Orange | 704.29 mi (1,133.45 km) |
| Thorne to Orchies | 280.57 mi (451.53 km) |
| Thorne to Orleans | 413.59 mi (665.60 km) |
| Thorne to Orly | 366.00 mi (589.02 km) |
| Thorne to Ormesson-sur-Marne | 365.87 mi (588.81 km) |
| Thorne to Orsay | 365.54 mi (588.28 km) |
