| Avellino to Montemor-o-Novo | 1,227.90 mi (1,976.12 km) |
| Avellino to Montemor-o-Velho | 1,229.83 mi (1,979.22 km) |
| Avellino to Montijo | 1,263.00 mi (2,032.60 km) |
| Avellino to Mortagua | 1,203.38 mi (1,936.65 km) |
| Avellino to Moura | 1,197.37 mi (1,926.98 km) |
| Avellino to Murtosa | 1,220.98 mi (1,964.98 km) |
| Avellino to Nazare | 1,257.23 mi (2,023.32 km) |
| Avellino to Nelas | 1,182.58 mi (1,903.18 km) |
| Avellino to Obidos | 1,265.52 mi (2,036.65 km) |
| Avellino to Odemira | 1,270.21 mi (2,044.21 km) |
| Avellino to Odivelas | 1,275.76 mi (2,053.14 km) |
| Avellino to Oeiras | 1,284.75 mi (2,067.61 km) |
| Avellino to Olhao | 1,241.23 mi (1,997.57 km) |
| Avellino to Oliveira de Azemeis | 1,211.75 mi (1,950.12 km) |
| Avellino to Oliveira de Frades | 1,197.83 mi (1,927.72 km) |
