| Helena to Ickenham | 4,537.41 mi (7,302.26 km) |
| Helena to Ifield | 4,566.15 mi (7,348.51 km) |
| Helena to Ilford | 4,553.49 mi (7,328.13 km) |
| Helena to Ilfracombe | 4,441.36 mi (7,147.68 km) |
| Helena to Ilkeston | 4,442.66 mi (7,149.77 km) |
| Helena to Ilkley | 4,381.59 mi (7,051.48 km) |
| Helena to Immingham | 4,443.42 mi (7,150.99 km) |
| Helena to Ince-in-Makerfield | 4,376.99 mi (7,044.08 km) |
| Helena to Inverness | 4,146.98 mi (6,673.92 km) |
| Helena to Inverurie | 4,207.45 mi (6,771.23 km) |
| Helena to Ipswich | 4,560.27 mi (7,339.05 km) |
| Helena to Irlam | 4,386.79 mi (7,059.86 km) |
| Helena to Irthlingborough | 4,494.83 mi (7,233.73 km) |
| Helena to Irvine | 4,219.02 mi (6,789.86 km) |
| Helena to Islington | 4,548.50 mi (7,320.10 km) |
