| Illescas to Mangualde | 209.50 mi (337.15 km) |
| Illescas to Marco de Canavezes | 237.95 mi (382.95 km) |
| Illescas to Marinha Grande | 271.35 mi (436.69 km) |
| Illescas to Massama | 305.13 mi (491.07 km) |
| Illescas to Matosinhos | 265.51 mi (427.29 km) |
| Illescas to Mealhada | 244.13 mi (392.88 km) |
| Illescas to Melgaco | 268.93 mi (432.80 km) |
| Illescas to Melres | 248.40 mi (399.75 km) |
| Illescas to Mira | 259.19 mi (417.13 km) |
| Illescas to Miranda do Corvo | 237.78 mi (382.67 km) |
| Illescas to Mirandela | 199.01 mi (320.27 km) |
| Illescas to Mogadouro | 172.79 mi (278.08 km) |
| Illescas to Moimenta da Beira | 207.21 mi (333.48 km) |
| Illescas to Moita | 293.05 mi (471.61 km) |
| Illescas to Moncao | 277.10 mi (445.95 km) |
