| Seysses to Octeville | 446.04 mi (717.83 km) |
| Seysses to Oignies | 488.10 mi (785.51 km) |
| Seysses to Oissel | 403.90 mi (650.02 km) |
| Seysses to Olivet | 302.98 mi (487.60 km) |
| Seysses to Ollioules | 229.25 mi (368.95 km) |
| Seysses to Olonne-sur-Mer | 258.35 mi (415.77 km) |
| Seysses to Oloron-Sainte-Marie | 98.69 mi (158.83 km) |
| Seysses to Onet Village | 87.50 mi (140.81 km) |
| Seysses to Onnaing | 488.02 mi (785.40 km) |
| Seysses to Orange | 179.86 mi (289.45 km) |
| Seysses to Orchies | 490.51 mi (789.40 km) |
| Seysses to Orleans | 305.67 mi (491.93 km) |
| Seysses to Orly | 366.11 mi (589.20 km) |
| Seysses to Ormesson-sur-Marne | 370.01 mi (595.48 km) |
| Seysses to Orsay | 361.72 mi (582.13 km) |
