| Iseo to Marco de Canavezes | 961.90 mi (1,548.03 km) |
| Iseo to Marinha Grande | 1,043.64 mi (1,679.58 km) |
| Iseo to Massama | 1,094.35 mi (1,761.18 km) |
| Iseo to Matosinhos | 987.89 mi (1,589.86 km) |
| Iseo to Mealhada | 1,000.37 mi (1,609.94 km) |
| Iseo to Melgaco | 942.18 mi (1,516.29 km) |
| Iseo to Melres | 977.10 mi (1,572.49 km) |
| Iseo to Mira | 1,012.03 mi (1,628.70 km) |
| Iseo to Miranda do Corvo | 1,004.12 mi (1,615.98 km) |
| Iseo to Mirandela | 907.54 mi (1,460.55 km) |
| Iseo to Mogadouro | 890.06 mi (1,432.42 km) |
| Iseo to Moimenta da Beira | 942.70 mi (1,517.12 km) |
| Iseo to Moita | 1,085.01 mi (1,746.16 km) |
| Iseo to Moncao | 953.46 mi (1,534.44 km) |
| Iseo to Montalegre | 927.13 mi (1,492.07 km) |
