| Somerville to Mangualde | 3,201.80 mi (5,152.79 km) |
| Somerville to Marco de Canavezes | 3,167.04 mi (5,096.86 km) |
| Somerville to Marinha Grande | 3,169.74 mi (5,101.20 km) |
| Somerville to Massama | 3,182.05 mi (5,121.02 km) |
| Somerville to Matosinhos | 3,140.80 mi (5,054.63 km) |
| Somerville to Mealhada | 3,175.01 mi (5,109.68 km) |
| Somerville to Melgaco | 3,136.22 mi (5,047.26 km) |
| Somerville to Melres | 3,158.33 mi (5,082.84 km) |
| Somerville to Mira | 3,159.99 mi (5,085.51 km) |
| Somerville to Miranda do Corvo | 3,188.66 mi (5,131.65 km) |
| Somerville to Mirandela | 3,204.75 mi (5,157.54 km) |
| Somerville to Mogadouro | 3,231.03 mi (5,199.85 km) |
| Somerville to Moimenta da Beira | 3,198.28 mi (5,147.13 km) |
| Somerville to Moita | 3,199.42 mi (5,148.96 km) |
| Somerville to Moncao | 3,127.28 mi (5,032.87 km) |
