| Darwen to Oerlinghausen | 479.10 mi (771.04 km) |
| Darwen to Oestrich-Winkel | 513.70 mi (826.72 km) |
| Darwen to Offenburg | 577.11 mi (928.77 km) |
| Darwen to Oftersheim | 560.11 mi (901.42 km) |
| Darwen to Ohrdruf | 591.07 mi (951.23 km) |
| Darwen to Ohringen | 600.40 mi (966.25 km) |
| Darwen to Olbernhau | 699.42 mi (1,125.61 km) |
| Darwen to Olching | 708.10 mi (1,139.58 km) |
| Darwen to Oldenburg | 440.78 mi (709.37 km) |
| Darwen to Oldenburg in Holstein | 542.73 mi (873.44 km) |
| Darwen to Olfen | 433.83 mi (698.18 km) |
| Darwen to Olpe | 471.69 mi (759.12 km) |
| Darwen to Olsberg | 487.24 mi (784.14 km) |
| Darwen to Oranienburg | 651.23 mi (1,048.06 km) |
| Darwen to Ortenberg | 540.48 mi (869.82 km) |
