| Swiecie to Marco de Canavezes | 1,491.36 mi (2,400.12 km) |
| Swiecie to Marinha Grande | 1,590.17 mi (2,559.13 km) |
| Swiecie to Massama | 1,652.34 mi (2,659.19 km) |
| Swiecie to Matosinhos | 1,512.16 mi (2,433.58 km) |
| Swiecie to Mealhada | 1,541.13 mi (2,480.20 km) |
| Swiecie to Melgaco | 1,452.13 mi (2,336.97 km) |
| Swiecie to Melres | 1,506.34 mi (2,424.23 km) |
| Swiecie to Mira | 1,549.31 mi (2,493.37 km) |
| Swiecie to Miranda do Corvo | 1,550.63 mi (2,495.50 km) |
| Swiecie to Mirandela | 1,440.59 mi (2,318.40 km) |
| Swiecie to Mogadouro | 1,430.52 mi (2,302.20 km) |
| Swiecie to Moimenta da Beira | 1,480.99 mi (2,383.42 km) |
| Swiecie to Moita | 1,647.04 mi (2,650.65 km) |
| Swiecie to Moncao | 1,462.29 mi (2,353.33 km) |
| Swiecie to Montalegre | 1,447.64 mi (2,329.75 km) |
