| Tredegar to Ickenham | 120.61 mi (194.10 km) |
| Tredegar to Ifield | 138.20 mi (222.41 km) |
| Tredegar to Ilford | 143.35 mi (230.70 km) |
| Tredegar to Ilfracombe | 54.59 mi (87.85 km) |
| Tredegar to Ilkeston | 115.92 mi (186.55 km) |
| Tredegar to Ilkley | 159.73 mi (257.07 km) |
| Tredegar to Immingham | 179.18 mi (288.36 km) |
| Tredegar to Ince-in-Makerfield | 124.72 mi (200.71 km) |
| Tredegar to Inverness | 395.80 mi (636.97 km) |
| Tredegar to Inverurie | 381.73 mi (614.34 km) |
| Tredegar to Ipswich | 188.33 mi (303.09 km) |
| Tredegar to Irlam | 120.22 mi (193.47 km) |
| Tredegar to Irthlingborough | 117.81 mi (189.60 km) |
| Tredegar to Irvine | 271.76 mi (437.36 km) |
| Tredegar to Islington | 135.45 mi (217.98 km) |
