| Richardson to Mangualde | 4,735.50 mi (7,621.05 km) |
| Richardson to Marco de Canavezes | 4,699.95 mi (7,563.85 km) |
| Richardson to Marinha Grande | 4,705.08 mi (7,572.10 km) |
| Richardson to Massama | 4,718.10 mi (7,593.04 km) |
| Richardson to Matosinhos | 4,674.06 mi (7,522.17 km) |
| Richardson to Mealhada | 4,709.41 mi (7,579.07 km) |
| Richardson to Melgaco | 4,667.19 mi (7,511.11 km) |
| Richardson to Melres | 4,691.61 mi (7,550.42 km) |
| Richardson to Mira | 4,694.46 mi (7,555.01 km) |
| Richardson to Miranda do Corvo | 4,723.39 mi (7,601.56 km) |
| Richardson to Mirandela | 4,736.34 mi (7,622.40 km) |
| Richardson to Mogadouro | 4,762.61 mi (7,664.67 km) |
| Richardson to Moimenta da Beira | 4,731.22 mi (7,614.17 km) |
| Richardson to Moita | 4,735.46 mi (7,620.98 km) |
| Richardson to Moncao | 4,658.52 mi (7,497.16 km) |
