| McNair to Mangualde | 3,598.82 mi (5,791.75 km) |
| McNair to Marco de Canavezes | 3,564.92 mi (5,737.19 km) |
| McNair to Marinha Grande | 3,564.26 mi (5,736.12 km) |
| McNair to Massama | 3,574.10 mi (5,751.96 km) |
| McNair to Matosinhos | 3,538.36 mi (5,694.43 km) |
| McNair to Mealhada | 3,571.17 mi (5,747.24 km) |
| McNair to Melgaco | 3,535.69 mi (5,690.14 km) |
| McNair to Melres | 3,555.84 mi (5,722.58 km) |
| McNair to Mira | 3,556.06 mi (5,722.93 km) |
| McNair to Miranda do Corvo | 3,584.33 mi (5,768.42 km) |
| McNair to Mirandela | 3,603.71 mi (5,799.60 km) |
| McNair to Mogadouro | 3,629.98 mi (5,841.90 km) |
| McNair to Moimenta da Beira | 3,596.09 mi (5,787.36 km) |
| McNair to Moita | 3,591.46 mi (5,779.89 km) |
| McNair to Moncao | 3,526.56 mi (5,675.46 km) |
