| Ferentino to Ifield | 911.88 mi (1,467.53 km) |
| Ferentino to Ilford | 922.28 mi (1,484.26 km) |
| Ferentino to Ilfracombe | 1,052.32 mi (1,693.54 km) |
| Ferentino to Ilkeston | 1,031.97 mi (1,660.80 km) |
| Ferentino to Ilkley | 1,092.90 mi (1,758.85 km) |
| Ferentino to Immingham | 1,031.97 mi (1,660.80 km) |
| Ferentino to Ince-in-Makerfield | 1,097.85 mi (1,766.81 km) |
| Ferentino to Inverness | 1,334.54 mi (2,147.74 km) |
| Ferentino to Inverurie | 1,279.14 mi (2,058.58 km) |
| Ferentino to Ipswich | 914.19 mi (1,471.24 km) |
| Ferentino to Irlam | 1,088.04 mi (1,751.03 km) |
| Ferentino to Irthlingborough | 980.14 mi (1,577.38 km) |
| Ferentino to Irvine | 1,255.59 mi (2,020.67 km) |
| Ferentino to Islington | 927.64 mi (1,492.89 km) |
| Ferentino to Iver | 939.60 mi (1,512.15 km) |
