| Fountain Valley to Mangualde | 5,649.42 mi (9,091.87 km) |
| Fountain Valley to Marco de Canavezes | 5,608.86 mi (9,026.58 km) |
| Fountain Valley to Marinha Grande | 5,636.45 mi (9,070.99 km) |
| Fountain Valley to Massama | 5,663.50 mi (9,114.53 km) |
| Fountain Valley to Matosinhos | 5,586.16 mi (8,990.05 km) |
| Fountain Valley to Mealhada | 5,630.13 mi (9,060.83 km) |
| Fountain Valley to Melgaco | 5,564.79 mi (8,955.67 km) |
| Fountain Valley to Melres | 5,603.45 mi (9,017.89 km) |
| Fountain Valley to Mira | 5,616.20 mi (9,038.40 km) |
| Fountain Valley to Miranda do Corvo | 5,646.95 mi (9,087.89 km) |
| Fountain Valley to Mirandela | 5,635.69 mi (9,069.76 km) |
| Fountain Valley to Mogadouro | 5,661.11 mi (9,110.67 km) |
| Fountain Valley to Moimenta da Beira | 5,639.55 mi (9,075.99 km) |
| Fountain Valley to Moita | 5,680.47 mi (9,141.84 km) |
| Fountain Valley to Moncao | 5,557.92 mi (8,944.61 km) |
