| Norristown to Ickenham | 3,527.16 mi (5,676.41 km) |
| Norristown to Ifield | 3,546.58 mi (5,707.68 km) |
| Norristown to Ilford | 3,548.93 mi (5,711.45 km) |
| Norristown to Ilfracombe | 3,383.21 mi (5,444.76 km) |
| Norristown to Ilkeston | 3,463.09 mi (5,573.30 km) |
| Norristown to Ilkley | 3,424.51 mi (5,511.22 km) |
| Norristown to Immingham | 3,493.40 mi (5,622.08 km) |
| Norristown to Ince-in-Makerfield | 3,400.99 mi (5,473.36 km) |
| Norristown to Inverness | 3,277.42 mi (5,274.50 km) |
| Norristown to Inverurie | 3,347.48 mi (5,387.24 km) |
| Norristown to Ipswich | 3,581.01 mi (5,763.08 km) |
| Norristown to Irlam | 3,409.75 mi (5,487.47 km) |
| Norristown to Irthlingborough | 3,504.11 mi (5,639.32 km) |
| Norristown to Irvine | 3,286.62 mi (5,289.30 km) |
| Norristown to Islington | 3,541.55 mi (5,699.58 km) |
