| Sumner to Octeville | 4,864.97 mi (7,829.41 km) |
| Sumner to Oignies | 4,942.60 mi (7,954.35 km) |
| Sumner to Oissel | 4,955.36 mi (7,974.87 km) |
| Sumner to Olivet | 5,059.53 mi (8,142.52 km) |
| Sumner to Ollioules | 5,436.68 mi (8,749.49 km) |
| Sumner to Olonne-sur-Mer | 5,029.40 mi (8,094.03 km) |
| Sumner to Oloron-Sainte-Marie | 5,247.86 mi (8,445.61 km) |
| Sumner to Onet Village | 5,275.63 mi (8,490.31 km) |
| Sumner to Onnaing | 4,962.67 mi (7,986.64 km) |
| Sumner to Orange | 5,350.52 mi (8,610.82 km) |
| Sumner to Orchies | 4,948.73 mi (7,964.21 km) |
| Sumner to Orleans | 5,057.60 mi (8,139.42 km) |
| Sumner to Orly | 5,023.53 mi (8,084.59 km) |
| Sumner to Ormesson-sur-Marne | 5,025.06 mi (8,087.05 km) |
| Sumner to Orsay | 5,020.61 mi (8,079.89 km) |
