| South Shields to Mangualde | 1,035.77 mi (1,666.91 km) |
| South Shields to Marco de Canavezes | 1,002.30 mi (1,613.04 km) |
| South Shields to Marinha Grande | 1,108.76 mi (1,784.38 km) |
| South Shields to Massama | 1,179.77 mi (1,898.66 km) |
| South Shields to Matosinhos | 1,010.24 mi (1,625.83 km) |
| South Shields to Mealhada | 1,059.76 mi (1,705.51 km) |
| South Shields to Melgaco | 942.04 mi (1,516.07 km) |
| South Shields to Melres | 1,013.58 mi (1,631.21 km) |
| South Shields to Mira | 1,060.46 mi (1,706.64 km) |
| South Shields to Miranda do Corvo | 1,077.05 mi (1,733.34 km) |
| South Shields to Mirandela | 969.41 mi (1,560.12 km) |
| South Shields to Mogadouro | 974.17 mi (1,567.77 km) |
| South Shields to Moimenta da Beira | 1,008.73 mi (1,623.39 km) |
| South Shields to Moita | 1,182.78 mi (1,903.51 km) |
| South Shields to Moncao | 948.11 mi (1,525.84 km) |
