| Helena to Kinston (North Carolina) | 1,940.16 mi (3,122.39 km) |
| Helena to Kirkland (Washington) | 484.27 mi (779.36 km) |
| Helena to Kirksville (Missouri) | 1,067.90 mi (1,718.62 km) |
| Helena to Kirkwood (Missouri) | 1,225.00 mi (1,971.45 km) |
| Helena to Kiryas Joel (New York) | 1,898.07 mi (3,054.65 km) |
| Helena to Kissimmee (Florida) | 2,079.32 mi (3,346.34 km) |
| Helena to Klamath Falls (Oregon) | 567.97 mi (914.06 km) |
| Helena to Knightdale (North Carolina) | 1,878.13 mi (3,022.56 km) |
| Helena to Knik-Fairview (Alaska) | 1,801.59 mi (2,899.37 km) |
| Helena to Knoxville (Tennessee) | 1,620.01 mi (2,607.16 km) |
| Helena to Kokomo (Indiana) | 1,357.28 mi (2,184.34 km) |
| Helena to Kuna (Idaho) | 302.74 mi (487.22 km) |
| Helena to Kyle (Texas) | 1,374.96 mi (2,212.78 km) |
| Helena to La Cañada Flintridge (California) | 914.79 mi (1,472.22 km) |
| Helena to La Crescenta-Montrose (California) | 913.97 mi (1,470.90 km) |
