| Rheinfelden to Octeville | 454.44 mi (731.35 km) |
| Rheinfelden to Oignies | 296.76 mi (477.58 km) |
| Rheinfelden to Oissel | 331.31 mi (533.19 km) |
| Rheinfelden to Olivet | 275.08 mi (442.69 km) |
| Rheinfelden to Ollioules | 319.13 mi (513.59 km) |
| Rheinfelden to Olonne-sur-Mer | 455.83 mi (733.59 km) |
| Rheinfelden to Oloron-Sainte-Marie | 506.55 mi (815.22 km) |
| Rheinfelden to Onet Village | 332.95 mi (535.84 km) |
| Rheinfelden to Onnaing | 273.35 mi (439.92 km) |
| Rheinfelden to Orange | 276.14 mi (444.40 km) |
| Rheinfelden to Orchies | 288.79 mi (464.77 km) |
| Rheinfelden to Orleans | 274.81 mi (442.27 km) |
| Rheinfelden to Orly | 262.50 mi (422.45 km) |
| Rheinfelden to Ormesson-sur-Marne | 257.00 mi (413.60 km) |
| Rheinfelden to Orsay | 270.66 mi (435.59 km) |
