| Illescas to Ifield | 780.16 mi (1,255.55 km) |
| Illescas to Ilford | 812.37 mi (1,307.39 km) |
| Illescas to Ilfracombe | 766.46 mi (1,233.49 km) |
| Illescas to Ilkeston | 896.06 mi (1,442.07 km) |
| Illescas to Ilkley | 958.65 mi (1,542.80 km) |
| Illescas to Immingham | 947.76 mi (1,525.26 km) |
| Illescas to Ince-in-Makerfield | 929.27 mi (1,495.52 km) |
| Illescas to Inverness | 1,199.66 mi (1,930.67 km) |
| Illescas to Inverurie | 1,187.65 mi (1,911.34 km) |
| Illescas to Ipswich | 858.57 mi (1,381.74 km) |
| Illescas to Irlam | 923.27 mi (1,485.85 km) |
| Illescas to Irthlingborough | 857.14 mi (1,379.44 km) |
| Illescas to Irvine | 1,071.85 mi (1,724.97 km) |
| Illescas to Islington | 809.44 mi (1,302.67 km) |
| Illescas to Iver | 803.85 mi (1,293.68 km) |
