| Enniskillen to Octeville | 413.63 mi (665.68 km) |
| Enniskillen to Oignies | 521.27 mi (838.91 km) |
| Enniskillen to Oissel | 507.62 mi (816.94 km) |
| Enniskillen to Olivet | 608.71 mi (979.62 km) |
| Enniskillen to Ollioules | 984.92 mi (1,585.08 km) |
| Enniskillen to Olonne-sur-Mer | 597.60 mi (961.74 km) |
| Enniskillen to Oloron-Sainte-Marie | 833.33 mi (1,341.12 km) |
| Enniskillen to Onet Village | 827.30 mi (1,331.41 km) |
| Enniskillen to Onnaing | 546.36 mi (879.27 km) |
| Enniskillen to Orange | 898.73 mi (1,446.36 km) |
| Enniskillen to Orchies | 530.11 mi (853.13 km) |
| Enniskillen to Orleans | 606.89 mi (976.69 km) |
| Enniskillen to Orly | 578.29 mi (930.67 km) |
| Enniskillen to Ormesson-sur-Marne | 580.87 mi (934.82 km) |
| Enniskillen to Orsay | 574.09 mi (923.91 km) |
