| Middletown to Mangualde | 3,914.29 mi (6,299.44 km) |
| Middletown to Marco de Canavezes | 3,878.60 mi (6,242.00 km) |
| Middletown to Marinha Grande | 3,884.60 mi (6,251.65 km) |
| Middletown to Massama | 3,898.59 mi (6,274.17 km) |
| Middletown to Matosinhos | 3,852.76 mi (6,200.42 km) |
| Middletown to Mealhada | 3,888.42 mi (6,257.81 km) |
| Middletown to Melgaco | 3,845.68 mi (6,189.03 km) |
| Middletown to Melres | 3,870.32 mi (6,228.68 km) |
| Middletown to Mira | 3,873.50 mi (6,233.79 km) |
| Middletown to Miranda do Corvo | 3,902.53 mi (6,280.51 km) |
| Middletown to Mirandela | 3,914.86 mi (6,300.36 km) |
| Middletown to Mogadouro | 3,941.12 mi (6,342.62 km) |
| Middletown to Moimenta da Beira | 3,909.87 mi (6,292.33 km) |
| Middletown to Moita | 3,915.95 mi (6,302.11 km) |
| Middletown to Moncao | 3,837.02 mi (6,175.09 km) |
