| Seagoville to Mangualde | 4,740.49 mi (7,629.08 km) |
| Seagoville to Marco de Canavezes | 4,705.12 mi (7,572.16 km) |
| Seagoville to Marinha Grande | 4,709.56 mi (7,579.31 km) |
| Seagoville to Massama | 4,722.13 mi (7,599.53 km) |
| Seagoville to Matosinhos | 4,679.15 mi (7,530.36 km) |
| Seagoville to Mealhada | 4,714.22 mi (7,586.80 km) |
| Seagoville to Melgaco | 4,672.71 mi (7,520.00 km) |
| Seagoville to Melres | 4,696.70 mi (7,558.61 km) |
| Seagoville to Mira | 4,699.25 mi (7,562.70 km) |
| Seagoville to Miranda do Corvo | 4,728.10 mi (7,609.13 km) |
| Seagoville to Mirandela | 4,741.76 mi (7,631.13 km) |
| Seagoville to Mogadouro | 4,768.03 mi (7,673.41 km) |
| Seagoville to Moimenta da Beira | 4,736.39 mi (7,622.48 km) |
| Seagoville to Moita | 4,739.49 mi (7,627.48 km) |
| Seagoville to Moncao | 4,663.99 mi (7,505.97 km) |
