| Prestatyn to Mangualde | 902.57 mi (1,452.55 km) |
| Prestatyn to Marco de Canavezes | 867.83 mi (1,396.63 km) |
| Prestatyn to Marinha Grande | 973.71 mi (1,567.03 km) |
| Prestatyn to Massama | 1,044.70 mi (1,681.29 km) |
| Prestatyn to Matosinhos | 874.67 mi (1,407.65 km) |
| Prestatyn to Mealhada | 925.22 mi (1,489.00 km) |
| Prestatyn to Melgaco | 806.63 mi (1,298.15 km) |
| Prestatyn to Melres | 878.68 mi (1,414.10 km) |
| Prestatyn to Mira | 925.34 mi (1,489.18 km) |
| Prestatyn to Miranda do Corvo | 942.94 mi (1,517.51 km) |
| Prestatyn to Mirandela | 836.99 mi (1,347.00 km) |
| Prestatyn to Mogadouro | 843.10 mi (1,356.84 km) |
| Prestatyn to Moimenta da Beira | 875.61 mi (1,409.15 km) |
| Prestatyn to Moita | 1,048.30 mi (1,687.08 km) |
| Prestatyn to Moncao | 812.32 mi (1,307.30 km) |
