| Darton to Oerlinghausen | 440.28 mi (708.57 km) |
| Darton to Oestrich-Winkel | 476.19 mi (766.35 km) |
| Darton to Offenburg | 541.68 mi (871.75 km) |
| Darton to Oftersheim | 523.01 mi (841.71 km) |
| Darton to Ohrdruf | 552.30 mi (888.84 km) |
| Darton to Ohringen | 563.00 mi (906.07 km) |
| Darton to Olbernhau | 660.60 mi (1,063.13 km) |
| Darton to Olching | 670.79 mi (1,079.54 km) |
| Darton to Oldenburg | 402.68 mi (648.04 km) |
| Darton to Oldenburg in Holstein | 506.67 mi (815.41 km) |
| Darton to Olfen | 395.07 mi (635.80 km) |
| Darton to Olpe | 433.25 mi (697.25 km) |
| Darton to Olsberg | 448.51 mi (721.81 km) |
| Darton to Oranienburg | 613.29 mi (986.99 km) |
| Darton to Ortenberg | 502.21 mi (808.24 km) |
