| Pontypridd to Ickenham | 124.27 mi (199.99 km) |
| Pontypridd to Ifield | 139.21 mi (224.03 km) |
| Pontypridd to Ilford | 147.20 mi (236.89 km) |
| Pontypridd to Ilfracombe | 43.19 mi (69.51 km) |
| Pontypridd to Ilkeston | 127.78 mi (205.64 km) |
| Pontypridd to Ilkley | 172.62 mi (277.80 km) |
| Pontypridd to Immingham | 191.02 mi (307.41 km) |
| Pontypridd to Ince-in-Makerfield | 137.50 mi (221.29 km) |
| Pontypridd to Inverness | 407.51 mi (655.82 km) |
| Pontypridd to Inverurie | 394.20 mi (634.40 km) |
| Pontypridd to Ipswich | 194.59 mi (313.17 km) |
| Pontypridd to Irlam | 133.08 mi (214.17 km) |
| Pontypridd to Irthlingborough | 126.39 mi (203.40 km) |
| Pontypridd to Irvine | 282.83 mi (455.17 km) |
| Pontypridd to Islington | 139.15 mi (223.94 km) |
