| Dunstable to Ifield | 54.39 mi (87.53 km) |
| Dunstable to Ilford | 34.49 mi (55.51 km) |
| Dunstable to Ilfracombe | 161.56 mi (260.00 km) |
| Dunstable to Ilkeston | 81.99 mi (131.95 km) |
| Dunstable to Ilkley | 150.95 mi (242.92 km) |
| Dunstable to Immingham | 120.06 mi (193.21 km) |
| Dunstable to Ince-in-Makerfield | 143.61 mi (231.12 km) |
| Dunstable to Inverness | 413.56 mi (665.56 km) |
| Dunstable to Inverurie | 380.01 mi (611.57 km) |
| Dunstable to Ipswich | 72.36 mi (116.45 km) |
| Dunstable to Irlam | 133.96 mi (215.59 km) |
| Dunstable to Irthlingborough | 30.52 mi (49.12 km) |
| Dunstable to Irvine | 308.38 mi (496.30 km) |
| Dunstable to Islington | 29.65 mi (47.71 km) |
| Dunstable to Iver | 25.23 mi (40.60 km) |
