| Duffel to Ifield | 204.88 mi (329.73 km) |
| Duffel to Ilford | 193.86 mi (311.98 km) |
| Duffel to Ilfracombe | 374.15 mi (602.14 km) |
| Duffel to Ilkeston | 279.21 mi (449.35 km) |
| Duffel to Ilkley | 330.16 mi (531.35 km) |
| Duffel to Immingham | 264.65 mi (425.91 km) |
| Duffel to Ince-in-Makerfield | 344.36 mi (554.19 km) |
| Duffel to Inverness | 563.41 mi (906.73 km) |
| Duffel to Inverurie | 509.40 mi (819.80 km) |
| Duffel to Ipswich | 158.79 mi (255.55 km) |
| Duffel to Irlam | 334.92 mi (539.01 km) |
| Duffel to Irthlingborough | 235.30 mi (378.69 km) |
| Duffel to Irvine | 489.99 mi (788.55 km) |
| Duffel to Islington | 201.77 mi (324.72 km) |
| Duffel to Iver | 218.87 mi (352.24 km) |
