| Trissino to Montemor-o-Novo | 1,107.88 mi (1,782.95 km) |
| Trissino to Montemor-o-Velho | 1,078.20 mi (1,735.20 km) |
| Trissino to Montijo | 1,138.09 mi (1,831.59 km) |
| Trissino to Mortagua | 1,048.76 mi (1,687.81 km) |
| Trissino to Moura | 1,092.43 mi (1,758.10 km) |
| Trissino to Murtosa | 1,058.71 mi (1,703.84 km) |
| Trissino to Nazare | 1,114.37 mi (1,793.40 km) |
| Trissino to Nelas | 1,028.14 mi (1,654.63 km) |
| Trissino to Obidos | 1,126.66 mi (1,813.18 km) |
| Trissino to Odemira | 1,167.17 mi (1,878.39 km) |
| Trissino to Odivelas | 1,147.22 mi (1,846.27 km) |
| Trissino to Oeiras | 1,157.35 mi (1,862.57 km) |
| Trissino to Olhao | 1,154.21 mi (1,857.52 km) |
| Trissino to Oliveira de Azemeis | 1,048.10 mi (1,686.75 km) |
| Trissino to Oliveira de Frades | 1,037.88 mi (1,670.30 km) |
