| Gagnef to Ifield | 879.08 mi (1,414.74 km) |
| Gagnef to Ilford | 847.43 mi (1,363.80 km) |
| Gagnef to Ilfracombe | 980.53 mi (1,578.01 km) |
| Gagnef to Ilkeston | 810.17 mi (1,303.84 km) |
| Gagnef to Ilkley | 778.42 mi (1,252.75 km) |
| Gagnef to Immingham | 746.95 mi (1,202.10 km) |
| Gagnef to Ince-in-Makerfield | 819.77 mi (1,319.29 km) |
| Gagnef to Inverness | 716.38 mi (1,152.90 km) |
| Gagnef to Inverurie | 661.03 mi (1,063.82 km) |
| Gagnef to Ipswich | 792.34 mi (1,275.14 km) |
| Gagnef to Irlam | 819.07 mi (1,318.16 km) |
| Gagnef to Irthlingborough | 824.37 mi (1,326.70 km) |
| Gagnef to Irvine | 794.51 mi (1,278.64 km) |
| Gagnef to Islington | 853.03 mi (1,372.82 km) |
| Gagnef to Iver | 864.81 mi (1,391.78 km) |
