| Enniskillen to Nottingham | 282.47 mi (454.60 km) |
| Enniskillen to Nuneaton | 283.35 mi (456.01 km) |
| Enniskillen to Oadby | 295.48 mi (475.52 km) |
| Enniskillen to Oakengates | 241.60 mi (388.81 km) |
| Enniskillen to Oakham | 306.27 mi (492.89 km) |
| Enniskillen to Oldbury | 264.00 mi (424.86 km) |
| Enniskillen to Oldham | 231.20 mi (372.08 km) |
| Enniskillen to Ollerton | 281.49 mi (453.01 km) |
| Enniskillen to Olton | 273.97 mi (440.91 km) |
| Enniskillen to Omagh | 21.99 mi (35.39 km) |
| Enniskillen to Ormesby | 259.71 mi (417.96 km) |
| Enniskillen to Ormskirk | 200.49 mi (322.66 km) |
| Enniskillen to Orpington | 382.19 mi (615.08 km) |
| Enniskillen to Ossett | 250.16 mi (402.59 km) |
| Enniskillen to Oswaldtwistle | 216.79 mi (348.89 km) |
