| Greenock to Ifield | 382.22 mi (615.12 km) |
| Greenock to Ilford | 362.26 mi (583.01 km) |
| Greenock to Ilfracombe | 328.70 mi (529.00 km) |
| Greenock to Ilkeston | 248.19 mi (399.42 km) |
| Greenock to Ilkley | 182.23 mi (293.28 km) |
| Greenock to Immingham | 242.55 mi (390.35 km) |
| Greenock to Ince-in-Makerfield | 187.55 mi (301.84 km) |
| Greenock to Inverness | 107.53 mi (173.05 km) |
| Greenock to Inverurie | 129.09 mi (207.74 km) |
| Greenock to Ipswich | 360.39 mi (579.99 km) |
| Greenock to Irlam | 196.72 mi (316.59 km) |
| Greenock to Irthlingborough | 301.54 mi (485.28 km) |
| Greenock to Irvine | 23.15 mi (37.25 km) |
| Greenock to Islington | 358.93 mi (577.64 km) |
| Greenock to Iver | 351.88 mi (566.30 km) |
