| Newburn to Mangualde | 1,031.06 mi (1,659.33 km) |
| Newburn to Marco de Canavezes | 997.25 mi (1,604.91 km) |
| Newburn to Marinha Grande | 1,103.56 mi (1,776.01 km) |
| Newburn to Massama | 1,174.58 mi (1,890.30 km) |
| Newburn to Matosinhos | 1,004.88 mi (1,617.20 km) |
| Newburn to Mealhada | 1,054.70 mi (1,697.37 km) |
| Newburn to Melgaco | 936.71 mi (1,507.50 km) |
| Newburn to Melres | 1,008.41 mi (1,622.89 km) |
| Newburn to Mira | 1,055.23 mi (1,698.24 km) |
| Newburn to Miranda do Corvo | 1,072.11 mi (1,725.39 km) |
| Newburn to Mirandela | 964.87 mi (1,552.82 km) |
| Newburn to Mogadouro | 969.94 mi (1,560.98 km) |
| Newburn to Moimenta da Beira | 1,004.03 mi (1,615.83 km) |
| Newburn to Moita | 1,177.76 mi (1,895.42 km) |
| Newburn to Moncao | 942.67 mi (1,517.08 km) |
