| Whitehaven to Mangualde | 982.44 mi (1,581.09 km) |
| Whitehaven to Marco de Canavezes | 946.83 mi (1,523.78 km) |
| Whitehaven to Marinha Grande | 1,052.11 mi (1,693.20 km) |
| Whitehaven to Massama | 1,123.02 mi (1,807.33 km) |
| Whitehaven to Matosinhos | 952.72 mi (1,533.26 km) |
| Whitehaven to Mealhada | 1,004.11 mi (1,615.95 km) |
| Whitehaven to Melgaco | 884.93 mi (1,424.15 km) |
| Whitehaven to Melres | 957.32 mi (1,540.65 km) |
| Whitehaven to Mira | 1,003.73 mi (1,615.35 km) |
| Whitehaven to Miranda do Corvo | 1,022.14 mi (1,644.97 km) |
| Whitehaven to Mirandela | 917.41 mi (1,476.43 km) |
| Whitehaven to Mogadouro | 924.24 mi (1,487.42 km) |
| Whitehaven to Moimenta da Beira | 955.56 mi (1,537.83 km) |
| Whitehaven to Moita | 1,127.11 mi (1,813.91 km) |
| Whitehaven to Moncao | 890.23 mi (1,432.69 km) |
