| Blackburn to Ifield | 205.07 mi (330.03 km) |
| Blackburn to Ilford | 185.69 mi (298.84 km) |
| Blackburn to Ilfracombe | 188.54 mi (303.42 km) |
| Blackburn to Ilkeston | 72.26 mi (116.29 km) |
| Blackburn to Ilkley | 29.56 mi (47.57 km) |
| Blackburn to Immingham | 93.09 mi (149.82 km) |
| Blackburn to Ince-in-Makerfield | 15.14 mi (24.36 km) |
| Blackburn to Inverness | 266.50 mi (428.89 km) |
| Blackburn to Inverurie | 244.07 mi (392.79 km) |
| Blackburn to Ipswich | 191.25 mi (307.79 km) |
| Blackburn to Irlam | 21.08 mi (33.92 km) |
| Blackburn to Irthlingborough | 125.30 mi (201.66 km) |
| Blackburn to Irvine | 155.90 mi (250.89 km) |
| Blackburn to Islington | 182.02 mi (292.93 km) |
| Blackburn to Iver | 174.73 mi (281.19 km) |
