| Carrick on Shannon to Marco de Canavezes | 881.68 mi (1,418.93 km) |
| Carrick on Shannon to Marinha Grande | 981.49 mi (1,579.56 km) |
| Carrick on Shannon to Massama | 1,050.80 mi (1,691.10 km) |
| Carrick on Shannon to Matosinhos | 882.12 mi (1,419.64 km) |
| Carrick on Shannon to Mealhada | 937.10 mi (1,508.11 km) |
| Carrick on Shannon to Melgaco | 817.23 mi (1,315.20 km) |
| Carrick on Shannon to Melres | 889.85 mi (1,432.07 km) |
| Carrick on Shannon to Mira | 933.97 mi (1,503.08 km) |
| Carrick on Shannon to Miranda do Corvo | 956.59 mi (1,539.49 km) |
| Carrick on Shannon to Mirandela | 861.84 mi (1,387.00 km) |
| Carrick on Shannon to Mogadouro | 873.63 mi (1,405.97 km) |
| Carrick on Shannon to Moimenta da Beira | 896.02 mi (1,442.01 km) |
| Carrick on Shannon to Moita | 1,057.54 mi (1,701.95 km) |
| Carrick on Shannon to Moncao | 820.38 mi (1,320.27 km) |
| Carrick on Shannon to Montalegre | 837.59 mi (1,347.97 km) |
