| American Canyon to Mangualde | 5,602.98 mi (9,017.13 km) |
| American Canyon to Marco de Canavezes | 5,560.72 mi (8,949.11 km) |
| American Canyon to Marinha Grande | 5,598.47 mi (9,009.86 km) |
| American Canyon to Massama | 5,631.92 mi (9,063.70 km) |
| American Canyon to Matosinhos | 5,539.86 mi (8,915.54 km) |
| American Canyon to Mealhada | 5,587.19 mi (8,991.71 km) |
| American Canyon to Melgaco | 5,512.16 mi (8,870.96 km) |
| American Canyon to Melres | 5,556.76 mi (8,942.74 km) |
| American Canyon to Mira | 5,573.95 mi (8,970.41 km) |
| American Canyon to Miranda do Corvo | 5,605.09 mi (9,020.52 km) |
| American Canyon to Mirandela | 5,582.72 mi (8,984.53 km) |
| American Canyon to Mogadouro | 5,607.36 mi (9,024.17 km) |
| American Canyon to Moimenta da Beira | 5,590.67 mi (8,997.31 km) |
| American Canyon to Moita | 5,648.44 mi (9,090.29 km) |
| American Canyon to Moncao | 5,506.22 mi (8,861.40 km) |
