| Wallingford Center to Mangualde | 3,307.56 mi (5,323.00 km) |
| Wallingford Center to Marco de Canavezes | 3,273.09 mi (5,267.53 km) |
| Wallingford Center to Marinha Grande | 3,274.67 mi (5,270.07 km) |
| Wallingford Center to Massama | 3,286.18 mi (5,288.60 km) |
| Wallingford Center to Matosinhos | 3,246.73 mi (5,225.11 km) |
| Wallingford Center to Mealhada | 3,280.48 mi (5,279.42 km) |
| Wallingford Center to Melgaco | 3,242.80 mi (5,218.78 km) |
| Wallingford Center to Melres | 3,264.25 mi (5,253.30 km) |
| Wallingford Center to Mira | 3,265.43 mi (5,255.20 km) |
| Wallingford Center to Miranda do Corvo | 3,293.97 mi (5,301.14 km) |
| Wallingford Center to Mirandela | 3,311.16 mi (5,328.80 km) |
| Wallingford Center to Mogadouro | 3,337.45 mi (5,371.10 km) |
| Wallingford Center to Moimenta da Beira | 3,304.30 mi (5,317.76 km) |
| Wallingford Center to Moita | 3,303.55 mi (5,316.54 km) |
| Wallingford Center to Moncao | 3,233.80 mi (5,204.29 km) |
