| Carrick on Shannon to Montemor-o-Novo | 1,056.73 mi (1,700.64 km) |
| Carrick on Shannon to Montemor-o-Velho | 952.31 mi (1,532.60 km) |
| Carrick on Shannon to Montijo | 1,055.09 mi (1,698.01 km) |
| Carrick on Shannon to Mortagua | 933.52 mi (1,502.36 km) |
| Carrick on Shannon to Moura | 1,092.84 mi (1,758.76 km) |
| Carrick on Shannon to Murtosa | 913.11 mi (1,469.51 km) |
| Carrick on Shannon to Nazare | 992.12 mi (1,596.66 km) |
| Carrick on Shannon to Nelas | 927.81 mi (1,493.16 km) |
| Carrick on Shannon to Obidos | 1,009.02 mi (1,623.86 km) |
| Carrick on Shannon to Odemira | 1,130.70 mi (1,819.69 km) |
| Carrick on Shannon to Odivelas | 1,048.26 mi (1,687.02 km) |
| Carrick on Shannon to Oeiras | 1,055.98 mi (1,699.44 km) |
| Carrick on Shannon to Olhao | 1,168.98 mi (1,881.30 km) |
| Carrick on Shannon to Oliveira de Azemeis | 905.57 mi (1,457.37 km) |
| Carrick on Shannon to Oliveira de Frades | 913.93 mi (1,470.82 km) |
