| Tallinn to Montemor-o-Novo | 2,033.21 mi (3,272.13 km) |
| Tallinn to Montemor-o-Velho | 1,961.89 mi (3,157.36 km) |
| Tallinn to Montijo | 2,052.17 mi (3,302.65 km) |
| Tallinn to Mortagua | 1,933.03 mi (3,110.92 km) |
| Tallinn to Moura | 2,039.77 mi (3,282.69 km) |
| Tallinn to Murtosa | 1,928.82 mi (3,104.13 km) |
| Tallinn to Nazare | 2,005.53 mi (3,227.59 km) |
| Tallinn to Nelas | 1,916.51 mi (3,084.32 km) |
| Tallinn to Obidos | 2,021.95 mi (3,254.02 km) |
| Tallinn to Odemira | 2,107.03 mi (3,390.93 km) |
| Tallinn to Odivelas | 2,054.70 mi (3,306.71 km) |
| Tallinn to Oeiras | 2,064.98 mi (3,323.27 km) |
| Tallinn to Olhao | 2,115.62 mi (3,404.76 km) |
| Tallinn to Oliveira de Azemeis | 1,917.96 mi (3,086.66 km) |
| Tallinn to Oliveira de Frades | 1,915.70 mi (3,083.02 km) |
