| Morriston to Montalegre | 703.77 mi (1,132.61 km) |
| Morriston to Montemor-o-Novo | 922.65 mi (1,484.86 km) |
| Morriston to Montemor-o-Velho | 826.07 mi (1,329.43 km) |
| Morriston to Montijo | 928.35 mi (1,494.04 km) |
| Morriston to Mortagua | 802.51 mi (1,291.51 km) |
| Morriston to Moura | 950.30 mi (1,529.36 km) |
| Morriston to Murtosa | 787.52 mi (1,267.39 km) |
| Morriston to Nazare | 869.07 mi (1,398.64 km) |
| Morriston to Nelas | 792.42 mi (1,275.28 km) |
| Morriston to Obidos | 886.47 mi (1,426.64 km) |
| Morriston to Odemira | 999.41 mi (1,608.39 km) |
| Morriston to Odivelas | 924.76 mi (1,488.25 km) |
| Morriston to Oeiras | 933.74 mi (1,502.72 km) |
| Morriston to Olhao | 1,029.26 mi (1,656.44 km) |
| Morriston to Oliveira de Azemeis | 778.29 mi (1,252.53 km) |
