| Darwen to Octeville | 283.46 mi (456.18 km) |
| Darwen to Oignies | 321.40 mi (517.24 km) |
| Darwen to Oissel | 337.41 mi (543.00 km) |
| Darwen to Olivet | 445.66 mi (717.22 km) |
| Darwen to Ollioules | 821.72 mi (1,322.43 km) |
| Darwen to Olonne-sur-Mer | 495.77 mi (797.87 km) |
| Darwen to Oloron-Sainte-Marie | 730.63 mi (1,175.84 km) |
| Darwen to Onet Village | 683.82 mi (1,100.50 km) |
| Darwen to Onnaing | 344.19 mi (553.92 km) |
| Darwen to Orange | 737.51 mi (1,186.90 km) |
| Darwen to Orchies | 328.86 mi (529.25 km) |
| Darwen to Orleans | 443.37 mi (713.54 km) |
| Darwen to Orly | 401.39 mi (645.97 km) |
| Darwen to Ormesson-sur-Marne | 402.21 mi (647.30 km) |
| Darwen to Orsay | 399.61 mi (643.11 km) |
