| Port Talbot to Ickenham | 143.87 mi (231.53 km) |
| Port Talbot to Ifield | 158.26 mi (254.70 km) |
| Port Talbot to Ilford | 166.80 mi (268.44 km) |
| Port Talbot to Ilfracombe | 29.85 mi (48.03 km) |
| Port Talbot to Ilkeston | 142.01 mi (228.55 km) |
| Port Talbot to Ilkley | 181.22 mi (291.64 km) |
| Port Talbot to Immingham | 205.17 mi (330.20 km) |
| Port Talbot to Ince-in-Makerfield | 143.81 mi (231.44 km) |
| Port Talbot to Inverness | 407.12 mi (655.20 km) |
| Port Talbot to Inverurie | 397.19 mi (639.21 km) |
| Port Talbot to Ipswich | 213.99 mi (344.38 km) |
| Port Talbot to Irlam | 140.59 mi (226.25 km) |
| Port Talbot to Irthlingborough | 144.74 mi (232.94 km) |
| Port Talbot to Irvine | 280.64 mi (451.65 km) |
| Port Talbot to Islington | 158.75 mi (255.48 km) |
