| Thames Ditton to Mangualde | 825.09 mi (1,327.85 km) |
| Thames Ditton to Marco de Canavezes | 796.82 mi (1,282.35 km) |
| Thames Ditton to Marinha Grande | 903.99 mi (1,454.83 km) |
| Thames Ditton to Massama | 974.13 mi (1,567.71 km) |
| Thames Ditton to Matosinhos | 809.29 mi (1,302.43 km) |
| Thames Ditton to Mealhada | 853.59 mi (1,373.72 km) |
| Thames Ditton to Melgaco | 741.68 mi (1,193.62 km) |
| Thames Ditton to Melres | 809.67 mi (1,303.03 km) |
| Thames Ditton to Mira | 856.69 mi (1,378.70 km) |
| Thames Ditton to Miranda do Corvo | 868.99 mi (1,398.50 km) |
| Thames Ditton to Mirandela | 757.25 mi (1,218.68 km) |
| Thames Ditton to Mogadouro | 757.86 mi (1,219.66 km) |
| Thames Ditton to Moimenta da Beira | 798.20 mi (1,284.58 km) |
| Thames Ditton to Moita | 974.76 mi (1,568.73 km) |
| Thames Ditton to Moncao | 749.43 mi (1,206.10 km) |
