| Onalaska to Mangualde | 4,082.96 mi (6,570.88 km) |
| Onalaska to Marco de Canavezes | 4,044.05 mi (6,508.26 km) |
| Onalaska to Marinha Grande | 4,063.82 mi (6,540.08 km) |
| Onalaska to Massama | 4,086.57 mi (6,576.69 km) |
| Onalaska to Matosinhos | 4,020.03 mi (6,469.61 km) |
| Onalaska to Mealhada | 4,061.11 mi (6,535.73 km) |
| Onalaska to Melgaco | 4,004.11 mi (6,444.00 km) |
| Onalaska to Melres | 4,037.51 mi (6,497.75 km) |
| Onalaska to Mira | 4,046.75 mi (6,512.62 km) |
| Onalaska to Miranda do Corvo | 4,077.02 mi (6,561.33 km) |
| Onalaska to Mirandela | 4,074.73 mi (6,557.64 km) |
| Onalaska to Mogadouro | 4,100.63 mi (6,599.32 km) |
| Onalaska to Moimenta da Beira | 4,075.13 mi (6,558.28 km) |
| Onalaska to Moita | 4,103.73 mi (6,604.31 km) |
| Onalaska to Moncao | 3,996.49 mi (6,431.73 km) |
