| Barrington to Mangualde | 4,002.57 mi (6,441.51 km) |
| Barrington to Marco de Canavezes | 3,964.91 mi (6,380.90 km) |
| Barrington to Marinha Grande | 3,979.05 mi (6,403.66 km) |
| Barrington to Massama | 3,998.25 mi (6,434.56 km) |
| Barrington to Matosinhos | 3,940.09 mi (6,340.96 km) |
| Barrington to Mealhada | 3,979.03 mi (6,403.63 km) |
| Barrington to Melgaco | 3,927.78 mi (6,321.16 km) |
| Barrington to Melres | 3,957.64 mi (6,369.21 km) |
| Barrington to Mira | 3,964.40 mi (6,380.09 km) |
| Barrington to Miranda do Corvo | 3,994.23 mi (6,428.08 km) |
| Barrington to Mirandela | 3,997.95 mi (6,434.08 km) |
| Barrington to Mogadouro | 4,024.05 mi (6,476.09 km) |
| Barrington to Moimenta da Beira | 3,996.13 mi (6,431.15 km) |
| Barrington to Moita | 4,015.53 mi (6,462.37 km) |
| Barrington to Moncao | 3,919.71 mi (6,308.17 km) |
