| Helena to Mexborough | 4,417.89 mi (7,109.90 km) |
| Helena to Mickleover | 4,438.82 mi (7,143.59 km) |
| Helena to Middlesbrough | 4,367.41 mi (7,028.67 km) |
| Helena to Middleton | 4,388.52 mi (7,062.64 km) |
| Helena to Middlewich | 4,398.24 mi (7,078.29 km) |
| Helena to Midsomer Norton | 4,488.74 mi (7,223.93 km) |
| Helena to Mildenhall | 4,527.07 mi (7,285.62 km) |
| Helena to Milford Haven | 4,388.46 mi (7,062.54 km) |
| Helena to Mill Hill | 4,540.92 mi (7,307.91 km) |
| Helena to Milngavie | 4,214.40 mi (6,782.42 km) |
| Helena to Milnrow | 4,388.13 mi (7,062.02 km) |
| Helena to Milton | 4,414.04 mi (7,103.71 km) |
| Helena to Milton Keynes | 4,504.38 mi (7,249.09 km) |
| Helena to Minehead | 4,461.80 mi (7,180.57 km) |
| Helena to Minster | 4,581.88 mi (7,373.82 km) |
