| Helena to Hutchinson (Minnesota) | 857.10 mi (1,379.37 km) |
| Helena to Hutto (Texas) | 1,352.56 mi (2,176.74 km) |
| Helena to Hyattsville (Maryland) | 1,837.85 mi (2,957.73 km) |
| Helena to Hybla Valley (Virginia) | 1,838.81 mi (2,959.27 km) |
| Helena to Idaho Falls (Idaho) | 214.84 mi (345.75 km) |
| Helena to Idylwood (Virginia) | 1,828.31 mi (2,942.39 km) |
| Helena to Ilchester (Maryland) | 1,838.36 mi (2,958.55 km) |
| Helena to Immokalee (Florida) | 2,173.69 mi (3,498.22 km) |
| Helena to Imperial (California) | 968.84 mi (1,559.19 km) |
| Helena to Imperial Beach (California) | 1,005.91 mi (1,618.86 km) |
| Helena to Independence (Kentucky) | 1,480.75 mi (2,383.04 km) |
| Helena to Independence (Missouri) | 1,031.27 mi (1,659.67 km) |
| Helena to Indian Trail (North Carolina) | 1,807.19 mi (2,908.39 km) |
| Helena to Indiana (Pennsylvania) | 1,681.93 mi (2,706.80 km) |
| Helena to Indianapolis (Indiana) | 1,378.47 mi (2,218.43 km) |
