| Mafra to Ifield | 950.67 mi (1,529.96 km) |
| Mafra to Ilford | 982.88 mi (1,581.79 km) |
| Mafra to Ilfracombe | 884.31 mi (1,423.17 km) |
| Mafra to Ilkeston | 1,041.60 mi (1,676.30 km) |
| Mafra to Ilkley | 1,093.82 mi (1,760.34 km) |
| Mafra to Immingham | 1,101.15 mi (1,772.13 km) |
| Mafra to Ince-in-Makerfield | 1,057.61 mi (1,702.05 km) |
| Mafra to Inverness | 1,301.28 mi (2,094.20 km) |
| Mafra to Inverurie | 1,305.43 mi (2,100.88 km) |
| Mafra to Ipswich | 1,036.57 mi (1,668.20 km) |
| Mafra to Irlam | 1,054.00 mi (1,696.24 km) |
| Mafra to Irthlingborough | 1,014.35 mi (1,632.43 km) |
| Mafra to Irvine | 1,172.36 mi (1,886.72 km) |
| Mafra to Islington | 977.92 mi (1,573.81 km) |
| Mafra to Iver | 967.83 mi (1,557.57 km) |
