| Glencullen to Ifield | 292.90 mi (471.38 km) |
| Glencullen to Ilford | 289.44 mi (465.81 km) |
| Glencullen to Ilfracombe | 165.08 mi (265.67 km) |
| Glencullen to Ilkeston | 204.28 mi (328.76 km) |
| Glencullen to Ilkley | 186.65 mi (300.38 km) |
| Glencullen to Immingham | 248.37 mi (399.71 km) |
| Glencullen to Ince-in-Makerfield | 150.65 mi (242.45 km) |
| Glencullen to Inverness | 304.17 mi (489.52 km) |
| Glencullen to Inverurie | 318.31 mi (512.27 km) |
| Glencullen to Ipswich | 319.19 mi (513.68 km) |
| Glencullen to Irlam | 157.27 mi (253.10 km) |
| Glencullen to Irthlingborough | 242.19 mi (389.76 km) |
| Glencullen to Irvine | 177.01 mi (284.87 km) |
| Glencullen to Islington | 282.59 mi (454.79 km) |
| Glencullen to Iver | 267.90 mi (431.14 km) |
