| Walker Mill to Octeville | 3,638.09 mi (5,854.94 km) |
| Walker Mill to Oignies | 3,811.80 mi (6,134.50 km) |
| Walker Mill to Oissel | 3,760.29 mi (6,051.61 km) |
| Walker Mill to Olivet | 3,831.84 mi (6,166.75 km) |
| Walker Mill to Ollioules | 4,140.91 mi (6,664.15 km) |
| Walker Mill to Olonne-sur-Mer | 3,704.81 mi (5,962.32 km) |
| Walker Mill to Oloron-Sainte-Marie | 3,845.15 mi (6,188.17 km) |
| Walker Mill to Onet Village | 3,957.89 mi (6,369.60 km) |
| Walker Mill to Onnaing | 3,838.64 mi (6,177.70 km) |
| Walker Mill to Orange | 4,063.83 mi (6,540.10 km) |
| Walker Mill to Orchies | 3,821.95 mi (6,150.83 km) |
| Walker Mill to Orleans | 3,831.20 mi (6,165.72 km) |
| Walker Mill to Orly | 3,830.17 mi (6,164.07 km) |
| Walker Mill to Ormesson-sur-Marne | 3,835.25 mi (6,172.24 km) |
| Walker Mill to Orsay | 3,822.65 mi (6,151.96 km) |
