| Enniskillen to Ifield | 382.05 mi (614.85 km) |
| Enniskillen to Ilford | 374.52 mi (602.73 km) |
| Enniskillen to Ilfracombe | 261.85 mi (421.40 km) |
| Enniskillen to Ilkeston | 275.89 mi (444.01 km) |
| Enniskillen to Ilkley | 237.18 mi (381.70 km) |
| Enniskillen to Immingham | 305.56 mi (491.76 km) |
| Enniskillen to Ince-in-Makerfield | 212.31 mi (341.69 km) |
| Enniskillen to Inverness | 253.59 mi (408.11 km) |
| Enniskillen to Inverurie | 287.63 mi (462.89 km) |
| Enniskillen to Ipswich | 396.40 mi (637.94 km) |
| Enniskillen to Irlam | 221.25 mi (356.07 km) |
| Enniskillen to Irthlingborough | 321.52 mi (517.44 km) |
| Enniskillen to Irvine | 147.29 mi (237.05 km) |
| Enniskillen to Islington | 368.35 mi (592.81 km) |
| Enniskillen to Iver | 355.10 mi (571.48 km) |
