| Swindon to Octeville | 133.70 mi (215.17 km) |
| Swindon to Oignies | 220.71 mi (355.20 km) |
| Swindon to Oissel | 198.58 mi (319.58 km) |
| Swindon to Olivet | 303.65 mi (488.68 km) |
| Swindon to Ollioules | 681.78 mi (1,097.22 km) |
| Swindon to Olonne-sur-Mer | 347.12 mi (558.63 km) |
| Swindon to Oloron-Sainte-Marie | 580.60 mi (934.39 km) |
| Swindon to Onet Village | 536.45 mi (863.33 km) |
| Swindon to Onnaing | 247.53 mi (398.36 km) |
| Swindon to Orange | 596.36 mi (959.75 km) |
| Swindon to Orchies | 230.84 mi (371.50 km) |
| Swindon to Orleans | 301.58 mi (485.35 km) |
| Swindon to Orly | 268.22 mi (431.66 km) |
| Swindon to Ormesson-sur-Marne | 270.57 mi (435.45 km) |
| Swindon to Orsay | 264.46 mi (425.61 km) |
