| Cinfaes to Ifield | 788.72 mi (1,269.32 km) |
| Cinfaes to Ilford | 820.89 mi (1,321.10 km) |
| Cinfaes to Ilfracombe | 724.04 mi (1,165.23 km) |
| Cinfaes to Ilkeston | 879.94 mi (1,416.12 km) |
| Cinfaes to Ilkley | 932.87 mi (1,501.31 km) |
| Cinfaes to Immingham | 939.27 mi (1,511.61 km) |
| Cinfaes to Ince-in-Makerfield | 897.09 mi (1,443.72 km) |
| Cinfaes to Inverness | 1,144.75 mi (1,842.30 km) |
| Cinfaes to Inverurie | 1,146.72 mi (1,845.46 km) |
| Cinfaes to Ipswich | 874.74 mi (1,407.76 km) |
| Cinfaes to Irlam | 893.27 mi (1,437.58 km) |
| Cinfaes to Irthlingborough | 852.30 mi (1,371.65 km) |
| Cinfaes to Irvine | 1,015.50 mi (1,634.29 km) |
| Cinfaes to Islington | 815.89 mi (1,313.05 km) |
| Cinfaes to Iver | 805.75 mi (1,296.73 km) |
