| Surbo to Marco de Canavezes | 1,370.71 mi (2,205.94 km) |
| Surbo to Marinha Grande | 1,426.12 mi (2,295.12 km) |
| Surbo to Massama | 1,458.14 mi (2,346.65 km) |
| Surbo to Matosinhos | 1,399.12 mi (2,251.67 km) |
| Surbo to Mealhada | 1,393.58 mi (2,242.76 km) |
| Surbo to Melgaco | 1,370.87 mi (2,206.20 km) |
| Surbo to Melres | 1,384.57 mi (2,228.25 km) |
| Surbo to Mira | 1,407.79 mi (2,265.62 km) |
| Surbo to Miranda do Corvo | 1,390.61 mi (2,237.96 km) |
| Surbo to Mirandela | 1,318.62 mi (2,122.11 km) |
| Surbo to Mogadouro | 1,295.59 mi (2,085.05 km) |
| Surbo to Moimenta da Beira | 1,344.58 mi (2,163.90 km) |
| Surbo to Moita | 1,444.54 mi (2,324.77 km) |
| Surbo to Moncao | 1,381.99 mi (2,224.09 km) |
| Surbo to Montalegre | 1,348.02 mi (2,169.44 km) |
