| Channelview to Mangualde | 4,786.85 mi (7,703.69 km) |
| Channelview to Marco de Canavezes | 4,753.11 mi (7,649.39 km) |
| Channelview to Marinha Grande | 4,751.43 mi (7,646.68 km) |
| Channelview to Massama | 4,759.97 mi (7,660.42 km) |
| Channelview to Matosinhos | 4,726.49 mi (7,606.56 km) |
| Channelview to Mealhada | 4,758.96 mi (7,658.80 km) |
| Channelview to Melgaco | 4,723.94 mi (7,602.44 km) |
| Channelview to Melres | 4,743.97 mi (7,634.69 km) |
| Channelview to Mira | 4,743.83 mi (7,634.46 km) |
| Channelview to Miranda do Corvo | 4,771.95 mi (7,679.71 km) |
| Channelview to Mirandela | 4,791.97 mi (7,711.93 km) |
| Channelview to Mogadouro | 4,818.25 mi (7,754.23 km) |
| Channelview to Moimenta da Beira | 4,784.27 mi (7,699.54 km) |
| Channelview to Moita | 4,777.30 mi (7,688.33 km) |
| Channelview to Moncao | 4,714.82 mi (7,587.78 km) |
