| Longton to Mangualde | 895.38 mi (1,440.98 km) |
| Longton to Marco de Canavezes | 862.58 mi (1,388.19 km) |
| Longton to Marinha Grande | 969.33 mi (1,559.98 km) |
| Longton to Massama | 1,040.30 mi (1,674.20 km) |
| Longton to Matosinhos | 871.26 mi (1,402.16 km) |
| Longton to Mealhada | 920.03 mi (1,480.64 km) |
| Longton to Melgaco | 803.01 mi (1,292.32 km) |
| Longton to Melres | 874.13 mi (1,406.77 km) |
| Longton to Mira | 921.11 mi (1,482.38 km) |
| Longton to Miranda do Corvo | 937.07 mi (1,508.07 km) |
| Longton to Mirandela | 828.76 mi (1,333.76 km) |
| Longton to Mogadouro | 833.10 mi (1,340.75 km) |
| Longton to Moimenta da Beira | 868.32 mi (1,397.43 km) |
| Longton to Moita | 1,042.95 mi (1,678.46 km) |
| Longton to Moncao | 809.38 mi (1,302.58 km) |
