| Thalwil to Mangualde | 931.55 mi (1,499.19 km) |
| Thalwil to Marco de Canavezes | 926.10 mi (1,490.41 km) |
| Thalwil to Marinha Grande | 1,016.27 mi (1,635.53 km) |
| Thalwil to Massama | 1,072.78 mi (1,726.48 km) |
| Thalwil to Matosinhos | 950.25 mi (1,529.27 km) |
| Thalwil to Mealhada | 969.94 mi (1,560.97 km) |
| Thalwil to Melgaco | 898.12 mi (1,445.39 km) |
| Thalwil to Melres | 941.40 mi (1,515.03 km) |
| Thalwil to Mira | 980.20 mi (1,577.48 km) |
| Thalwil to Miranda do Corvo | 976.33 mi (1,571.25 km) |
| Thalwil to Mirandela | 872.54 mi (1,404.22 km) |
| Thalwil to Mogadouro | 858.13 mi (1,381.02 km) |
| Thalwil to Moimenta da Beira | 910.48 mi (1,465.28 km) |
| Thalwil to Moita | 1,065.31 mi (1,714.46 km) |
| Thalwil to Moncao | 909.14 mi (1,463.11 km) |
