| Windsor to Octeville | 135.78 mi (218.51 km) |
| Windsor to Oignies | 171.56 mi (276.10 km) |
| Windsor to Oissel | 165.56 mi (266.45 km) |
| Windsor to Olivet | 273.80 mi (440.64 km) |
| Windsor to Ollioules | 650.18 mi (1,046.36 km) |
| Windsor to Olonne-sur-Mer | 345.56 mi (556.13 km) |
| Windsor to Oloron-Sainte-Marie | 572.43 mi (921.24 km) |
| Windsor to Onet Village | 513.25 mi (826.00 km) |
| Windsor to Onnaing | 198.09 mi (318.79 km) |
| Windsor to Orange | 565.74 mi (910.47 km) |
| Windsor to Orchies | 181.42 mi (291.96 km) |
| Windsor to Orleans | 271.51 mi (436.95 km) |
| Windsor to Orly | 231.07 mi (371.87 km) |
| Windsor to Ormesson-sur-Marne | 232.47 mi (374.13 km) |
| Windsor to Orsay | 228.64 mi (367.96 km) |
