| Windsor to Ickenham | 8.81 mi (14.19 km) |
| Windsor to Ifield | 30.10 mi (48.44 km) |
| Windsor to Ilford | 30.38 mi (48.89 km) |
| Windsor to Ilfracombe | 152.65 mi (245.66 km) |
| Windsor to Ilkeston | 107.25 mi (172.60 km) |
| Windsor to Ilkley | 176.45 mi (283.97 km) |
| Windsor to Immingham | 148.41 mi (238.85 km) |
| Windsor to Ince-in-Makerfield | 165.15 mi (265.78 km) |
| Windsor to Inverness | 438.99 mi (706.48 km) |
| Windsor to Inverurie | 407.05 mi (655.08 km) |
| Windsor to Ipswich | 85.46 mi (137.53 km) |
| Windsor to Irlam | 155.78 mi (250.71 km) |
| Windsor to Irthlingborough | 58.38 mi (93.95 km) |
| Windsor to Irvine | 330.82 mi (532.40 km) |
| Windsor to Islington | 22.25 mi (35.81 km) |
