| Half Moon Bay to Mangualde | 5,645.01 mi (9,084.77 km) |
| Half Moon Bay to Marco de Canavezes | 5,602.85 mi (9,016.92 km) |
| Half Moon Bay to Marinha Grande | 5,639.89 mi (9,076.53 km) |
| Half Moon Bay to Massama | 5,672.88 mi (9,129.62 km) |
| Half Moon Bay to Matosinhos | 5,581.85 mi (8,983.13 km) |
| Half Moon Bay to Mealhada | 5,628.96 mi (9,058.94 km) |
| Half Moon Bay to Melgaco | 5,554.59 mi (8,939.24 km) |
| Half Moon Bay to Melres | 5,598.79 mi (9,010.39 km) |
| Half Moon Bay to Mira | 5,615.67 mi (9,037.56 km) |
| Half Moon Bay to Miranda do Corvo | 5,646.80 mi (9,087.64 km) |
| Half Moon Bay to Mirandela | 5,625.20 mi (9,052.88 km) |
| Half Moon Bay to Mogadouro | 5,649.89 mi (9,092.62 km) |
| Half Moon Bay to Moimenta da Beira | 5,632.86 mi (9,065.22 km) |
| Half Moon Bay to Moita | 5,689.44 mi (9,156.27 km) |
| Half Moon Bay to Moncao | 5,548.58 mi (8,929.58 km) |
