| Fleron to Oestrich-Winkel | 110.75 mi (178.23 km) |
| Fleron to Offenburg | 179.55 mi (288.95 km) |
| Fleron to Oftersheim | 154.97 mi (249.40 km) |
| Fleron to Ohrdruf | 221.31 mi (356.17 km) |
| Fleron to Ohringen | 195.99 mi (315.41 km) |
| Fleron to Olbernhau | 335.07 mi (539.24 km) |
| Fleron to Olching | 303.22 mi (487.99 km) |
| Fleron to Oldenburg | 205.25 mi (330.32 km) |
| Fleron to Oldenburg in Holstein | 335.52 mi (539.97 km) |
| Fleron to Olfen | 105.83 mi (170.32 km) |
| Fleron to Olpe | 97.84 mi (157.45 km) |
| Fleron to Olsberg | 131.90 mi (212.27 km) |
| Fleron to Oranienburg | 355.45 mi (572.05 km) |
| Fleron to Ortenberg | 149.32 mi (240.30 km) |
| Fleron to Oschatz | 326.38 mi (525.26 km) |
