| Pen-y-Bont ar Ogwr to Montalegre | 697.99 mi (1,123.31 km) |
| Pen-y-Bont ar Ogwr to Montemor-o-Novo | 916.24 mi (1,474.54 km) |
| Pen-y-Bont ar Ogwr to Montemor-o-Velho | 820.67 mi (1,320.74 km) |
| Pen-y-Bont ar Ogwr to Montijo | 922.65 mi (1,484.87 km) |
| Pen-y-Bont ar Ogwr to Mortagua | 796.70 mi (1,282.16 km) |
| Pen-y-Bont ar Ogwr to Moura | 942.98 mi (1,517.58 km) |
| Pen-y-Bont ar Ogwr to Murtosa | 782.30 mi (1,258.99 km) |
| Pen-y-Bont ar Ogwr to Nazare | 863.88 mi (1,390.27 km) |
| Pen-y-Bont ar Ogwr to Nelas | 786.20 mi (1,265.26 km) |
| Pen-y-Bont ar Ogwr to Obidos | 881.28 mi (1,418.28 km) |
| Pen-y-Bont ar Ogwr to Odemira | 993.12 mi (1,598.27 km) |
| Pen-y-Bont ar Ogwr to Odivelas | 919.38 mi (1,479.60 km) |
| Pen-y-Bont ar Ogwr to Oeiras | 928.47 mi (1,494.23 km) |
| Pen-y-Bont ar Ogwr to Olhao | 1,022.09 mi (1,644.89 km) |
| Pen-y-Bont ar Ogwr to Oliveira de Azemeis | 772.92 mi (1,243.90 km) |
