| Stockton-on-Tees to Montalegre | 928.83 mi (1,494.80 km) |
| Stockton-on-Tees to Montemor-o-Novo | 1,146.30 mi (1,844.78 km) |
| Stockton-on-Tees to Montemor-o-Velho | 1,051.74 mi (1,692.61 km) |
| Stockton-on-Tees to Montijo | 1,153.47 mi (1,856.33 km) |
| Stockton-on-Tees to Mortagua | 1,027.46 mi (1,653.54 km) |
| Stockton-on-Tees to Moura | 1,171.59 mi (1,885.49 km) |
| Stockton-on-Tees to Murtosa | 1,013.49 mi (1,631.05 km) |
| Stockton-on-Tees to Nazare | 1,095.06 mi (1,762.33 km) |
| Stockton-on-Tees to Nelas | 1,016.55 mi (1,635.99 km) |
| Stockton-on-Tees to Obidos | 1,112.47 mi (1,790.34 km) |
| Stockton-on-Tees to Odemira | 1,223.29 mi (1,968.70 km) |
| Stockton-on-Tees to Odivelas | 1,150.45 mi (1,851.47 km) |
| Stockton-on-Tees to Oeiras | 1,159.60 mi (1,866.20 km) |
| Stockton-on-Tees to Olhao | 1,250.90 mi (2,013.13 km) |
| Stockton-on-Tees to Oliveira de Azemeis | 1,004.03 mi (1,615.83 km) |
