| Tonypandy to Octeville | 159.01 mi (255.91 km) |
| Tonypandy to Oignies | 290.96 mi (468.25 km) |
| Tonypandy to Oissel | 254.31 mi (409.27 km) |
| Tonypandy to Olivet | 352.71 mi (567.63 km) |
| Tonypandy to Ollioules | 728.67 mi (1,172.68 km) |
| Tonypandy to Olonne-sur-Mer | 359.51 mi (578.58 km) |
| Tonypandy to Oloron-Sainte-Marie | 597.20 mi (961.10 km) |
| Tonypandy to Onet Village | 573.57 mi (923.07 km) |
| Tonypandy to Onnaing | 317.99 mi (511.75 km) |
| Tonypandy to Orange | 642.51 mi (1,034.01 km) |
| Tonypandy to Orchies | 301.32 mi (484.92 km) |
| Tonypandy to Orleans | 350.94 mi (564.79 km) |
| Tonypandy to Orly | 326.03 mi (524.69 km) |
| Tonypandy to Ormesson-sur-Marne | 329.33 mi (530.00 km) |
| Tonypandy to Orsay | 320.96 mi (516.54 km) |
