| Leer to Octeville | 463.74 mi (746.32 km) |
| Leer to Oignies | 269.40 mi (433.56 km) |
| Leer to Oissel | 384.13 mi (618.19 km) |
| Leer to Olivet | 443.47 mi (713.69 km) |
| Leer to Ollioules | 701.11 mi (1,128.33 km) |
| Leer to Olonne-sur-Mer | 617.61 mi (993.94 km) |
| Leer to Oloron-Sainte-Marie | 785.35 mi (1,263.90 km) |
| Leer to Onet Village | 650.85 mi (1,047.44 km) |
| Leer to Onnaing | 256.25 mi (412.39 km) |
| Leer to Orange | 639.58 mi (1,029.30 km) |
| Leer to Orchies | 261.68 mi (421.14 km) |
| Leer to Orleans | 440.99 mi (709.70 km) |
| Leer to Orly | 379.98 mi (611.52 km) |
| Leer to Ormesson-sur-Marne | 373.93 mi (601.79 km) |
| Leer to Orsay | 387.82 mi (624.13 km) |
