| Katy to Ickenham | 4,851.43 mi (7,807.62 km) |
| Katy to Ifield | 4,872.94 mi (7,842.24 km) |
| Katy to Ilford | 4,872.48 mi (7,841.50 km) |
| Katy to Ilfracombe | 4,713.87 mi (7,586.24 km) |
| Katy to Ilkeston | 4,780.06 mi (7,692.76 km) |
| Katy to Ilkley | 4,735.89 mi (7,621.68 km) |
| Katy to Immingham | 4,804.65 mi (7,732.34 km) |
| Katy to Ince-in-Makerfield | 4,715.98 mi (7,589.64 km) |
| Katy to Inverness | 4,564.19 mi (7,345.36 km) |
| Katy to Inverurie | 4,633.59 mi (7,457.05 km) |
| Katy to Ipswich | 4,900.13 mi (7,886.00 km) |
| Katy to Irlam | 4,725.14 mi (7,604.38 km) |
| Katy to Irthlingborough | 4,824.14 mi (7,763.70 km) |
| Katy to Irvine | 4,589.30 mi (7,385.77 km) |
| Katy to Islington | 4,865.44 mi (7,830.16 km) |
