| Llantrisant to Montalegre | 703.05 mi (1,131.46 km) |
| Llantrisant to Montemor-o-Novo | 921.00 mi (1,482.20 km) |
| Llantrisant to Montemor-o-Velho | 825.87 mi (1,329.11 km) |
| Llantrisant to Montijo | 927.72 mi (1,493.02 km) |
| Llantrisant to Mortagua | 801.73 mi (1,290.26 km) |
| Llantrisant to Moura | 947.33 mi (1,524.59 km) |
| Llantrisant to Murtosa | 787.58 mi (1,267.48 km) |
| Llantrisant to Nazare | 869.15 mi (1,398.77 km) |
| Llantrisant to Nelas | 791.06 mi (1,273.08 km) |
| Llantrisant to Obidos | 886.56 mi (1,426.78 km) |
| Llantrisant to Odemira | 997.92 mi (1,606.00 km) |
| Llantrisant to Odivelas | 924.58 mi (1,487.97 km) |
| Llantrisant to Oeiras | 933.71 mi (1,502.67 km) |
| Llantrisant to Olhao | 1,026.50 mi (1,651.99 km) |
| Llantrisant to Oliveira de Azemeis | 778.15 mi (1,252.31 km) |
