| Butler to Octeville | 3,680.03 mi (5,922.43 km) |
| Butler to Oignies | 3,845.35 mi (6,188.49 km) |
| Butler to Oissel | 3,800.51 mi (6,116.33 km) |
| Butler to Olivet | 3,877.08 mi (6,239.56 km) |
| Butler to Ollioules | 4,198.82 mi (6,757.34 km) |
| Butler to Olonne-sur-Mer | 3,759.67 mi (6,050.61 km) |
| Butler to Oloron-Sainte-Marie | 3,911.66 mi (6,295.20 km) |
| Butler to Onet Village | 4,015.76 mi (6,462.74 km) |
| Butler to Onnaing | 3,871.86 mi (6,231.15 km) |
| Butler to Orange | 4,119.57 mi (6,629.81 km) |
| Butler to Orchies | 3,855.20 mi (6,204.35 km) |
| Butler to Orleans | 3,876.28 mi (6,238.27 km) |
| Butler to Orly | 3,871.34 mi (6,230.32 km) |
| Butler to Ormesson-sur-Marne | 3,876.09 mi (6,237.96 km) |
| Butler to Orsay | 3,864.23 mi (6,218.88 km) |
