| Tonypandy to Ickenham | 128.97 mi (207.55 km) |
| Tonypandy to Ifield | 144.08 mi (231.88 km) |
| Tonypandy to Ilford | 151.88 mi (244.43 km) |
| Tonypandy to Ilfracombe | 40.62 mi (65.37 km) |
| Tonypandy to Ilkeston | 129.90 mi (209.06 km) |
| Tonypandy to Ilkley | 173.05 mi (278.50 km) |
| Tonypandy to Immingham | 193.16 mi (310.87 km) |
| Tonypandy to Ince-in-Makerfield | 137.26 mi (220.89 km) |
| Tonypandy to Inverness | 405.75 mi (653.00 km) |
| Tonypandy to Inverurie | 393.26 mi (632.89 km) |
| Tonypandy to Ipswich | 198.93 mi (320.15 km) |
| Tonypandy to Irlam | 133.15 mi (214.29 km) |
| Tonypandy to Irthlingborough | 130.12 mi (209.41 km) |
| Tonypandy to Irvine | 280.63 mi (451.62 km) |
| Tonypandy to Islington | 143.85 mi (231.51 km) |
