| Gainsborough to Octeville | 263.47 mi (424.01 km) |
| Gainsborough to Oignies | 258.38 mi (415.82 km) |
| Gainsborough to Oissel | 291.77 mi (469.56 km) |
| Gainsborough to Olivet | 400.08 mi (643.87 km) |
| Gainsborough to Ollioules | 770.84 mi (1,240.55 km) |
| Gainsborough to Olonne-sur-Mer | 476.42 mi (766.73 km) |
| Gainsborough to Oloron-Sainte-Marie | 705.30 mi (1,135.08 km) |
| Gainsborough to Onet Village | 642.60 mi (1,034.17 km) |
| Gainsborough to Onnaing | 279.36 mi (449.59 km) |
| Gainsborough to Orange | 688.15 mi (1,107.48 km) |
| Gainsborough to Orchies | 264.83 mi (426.21 km) |
| Gainsborough to Orleans | 397.63 mi (639.92 km) |
| Gainsborough to Orly | 349.85 mi (563.03 km) |
| Gainsborough to Ormesson-sur-Marne | 349.71 mi (562.80 km) |
| Gainsborough to Orsay | 349.42 mi (562.34 km) |
