| Seclin to Obernburg am Main | 274.66 mi (442.02 km) |
| Seclin to Obernkirchen | 287.89 mi (463.31 km) |
| Seclin to Oberschleissheim | 415.12 mi (668.07 km) |
| Seclin to Oberstdorf | 393.57 mi (633.39 km) |
| Seclin to Obertraubling | 421.96 mi (679.08 km) |
| Seclin to Obertshausen | 258.20 mi (415.53 km) |
| Seclin to Oberursel | 245.55 mi (395.17 km) |
| Seclin to Ochsenfurt | 317.88 mi (511.58 km) |
| Seclin to Ochsenhausen | 355.33 mi (571.84 km) |
| Seclin to Ochtrup | 212.82 mi (342.50 km) |
| Seclin to Odenthal | 181.62 mi (292.28 km) |
| Seclin to Oelde | 238.78 mi (384.29 km) |
| Seclin to Oelsnitz | 401.57 mi (646.27 km) |
| Seclin to Oer-Erkenschwick | 198.12 mi (318.84 km) |
| Seclin to Oerlinghausen | 262.63 mi (422.67 km) |
