| Stansted Mountfitchet to Octeville | 176.33 mi (283.78 km) |
| Stansted Mountfitchet to Oignies | 156.20 mi (251.38 km) |
| Stansted Mountfitchet to Oissel | 180.90 mi (291.12 km) |
| Stansted Mountfitchet to Olivet | 288.83 mi (464.83 km) |
| Stansted Mountfitchet to Ollioules | 659.58 mi (1,061.49 km) |
| Stansted Mountfitchet to Olonne-sur-Mer | 380.96 mi (613.10 km) |
| Stansted Mountfitchet to Oloron-Sainte-Marie | 602.53 mi (969.68 km) |
| Stansted Mountfitchet to Onet Village | 531.95 mi (856.10 km) |
| Stansted Mountfitchet to Onnaing | 180.55 mi (290.57 km) |
| Stansted Mountfitchet to Orange | 576.66 mi (928.04 km) |
| Stansted Mountfitchet to Orchies | 164.52 mi (264.77 km) |
| Stansted Mountfitchet to Orleans | 286.35 mi (460.84 km) |
| Stansted Mountfitchet to Orly | 238.44 mi (383.73 km) |
| Stansted Mountfitchet to Ormesson-sur-Marne | 238.48 mi (383.80 km) |
| Stansted Mountfitchet to Orsay | 237.87 mi (382.81 km) |
