| Secanj to Octeville | 1,082.43 mi (1,742.01 km) |
| Secanj to Oignies | 892.73 mi (1,436.71 km) |
| Secanj to Oissel | 958.14 mi (1,541.98 km) |
| Secanj to Olivet | 909.71 mi (1,464.04 km) |
| Secanj to Ollioules | 753.34 mi (1,212.39 km) |
| Secanj to Olonne-sur-Mer | 1,082.35 mi (1,741.87 km) |
| Secanj to Oloron-Sainte-Marie | 1,064.92 mi (1,713.83 km) |
| Secanj to Onet Village | 891.00 mi (1,433.93 km) |
| Secanj to Onnaing | 865.63 mi (1,393.09 km) |
| Secanj to Orange | 786.52 mi (1,265.78 km) |
| Secanj to Orchies | 882.28 mi (1,419.89 km) |
| Secanj to Orleans | 909.51 mi (1,463.71 km) |
| Secanj to Orly | 893.63 mi (1,438.16 km) |
| Secanj to Ormesson-sur-Marne | 887.50 mi (1,428.29 km) |
| Secanj to Orsay | 902.46 mi (1,452.36 km) |
