| Palm Beach Gardens to Mangualde | 4,151.70 mi (6,681.52 km) |
| Palm Beach Gardens to Marco de Canavezes | 4,124.22 mi (6,637.29 km) |
| Palm Beach Gardens to Marinha Grande | 4,102.28 mi (6,601.98 km) |
| Palm Beach Gardens to Massama | 4,097.63 mi (6,594.51 km) |
| Palm Beach Gardens to Matosinhos | 4,096.09 mi (6,592.02 km) |
| Palm Beach Gardens to Mealhada | 4,119.08 mi (6,629.02 km) |
| Palm Beach Gardens to Melgaco | 4,106.79 mi (6,609.23 km) |
| Palm Beach Gardens to Melres | 4,112.90 mi (6,619.07 km) |
| Palm Beach Gardens to Mira | 4,103.80 mi (6,604.42 km) |
| Palm Beach Gardens to Miranda do Corvo | 4,128.85 mi (6,644.75 km) |
| Palm Beach Gardens to Mirandela | 4,169.67 mi (6,710.43 km) |
| Palm Beach Gardens to Mogadouro | 4,195.34 mi (6,751.75 km) |
| Palm Beach Gardens to Moimenta da Beira | 4,154.30 mi (6,685.69 km) |
| Palm Beach Gardens to Moita | 4,114.51 mi (6,621.66 km) |
| Palm Beach Gardens to Moncao | 4,096.53 mi (6,592.73 km) |
