| Ocean Acres to Mangualde | 3,423.98 mi (5,510.36 km) |
| Ocean Acres to Marco de Canavezes | 3,390.28 mi (5,456.13 km) |
| Ocean Acres to Marinha Grande | 3,388.96 mi (5,454.00 km) |
| Ocean Acres to Massama | 3,398.49 mi (5,469.34 km) |
| Ocean Acres to Matosinhos | 3,363.64 mi (5,413.25 km) |
| Ocean Acres to Mealhada | 3,396.15 mi (5,465.57 km) |
| Ocean Acres to Melgaco | 3,361.49 mi (5,409.80 km) |
| Ocean Acres to Melres | 3,381.11 mi (5,441.38 km) |
| Ocean Acres to Mira | 3,381.03 mi (5,441.24 km) |
| Ocean Acres to Miranda do Corvo | 3,409.22 mi (5,486.60 km) |
| Ocean Acres to Mirandela | 3,429.35 mi (5,519.00 km) |
| Ocean Acres to Mogadouro | 3,455.62 mi (5,561.29 km) |
| Ocean Acres to Moimenta da Beira | 3,421.43 mi (5,506.27 km) |
| Ocean Acres to Moita | 3,415.84 mi (5,497.26 km) |
| Ocean Acres to Moncao | 3,352.31 mi (5,395.03 km) |
