| Asenovgrad to Montemor-o-Novo | 1,746.92 mi (2,811.39 km) |
| Asenovgrad to Montemor-o-Velho | 1,740.52 mi (2,801.09 km) |
| Asenovgrad to Montijo | 1,781.20 mi (2,866.56 km) |
| Asenovgrad to Mortagua | 1,712.85 mi (2,756.57 km) |
| Asenovgrad to Moura | 1,719.09 mi (2,766.60 km) |
| Asenovgrad to Murtosa | 1,728.05 mi (2,781.03 km) |
| Asenovgrad to Nazare | 1,770.79 mi (2,849.80 km) |
| Asenovgrad to Nelas | 1,691.91 mi (2,722.86 km) |
| Asenovgrad to Obidos | 1,780.25 mi (2,865.04 km) |
| Asenovgrad to Odemira | 1,792.70 mi (2,885.08 km) |
| Asenovgrad to Odivelas | 1,793.21 mi (2,885.89 km) |
| Asenovgrad to Oeiras | 1,802.53 mi (2,900.89 km) |
| Asenovgrad to Olhao | 1,765.80 mi (2,841.77 km) |
| Asenovgrad to Oliveira de Azemeis | 1,718.24 mi (2,765.23 km) |
| Asenovgrad to Oliveira de Frades | 1,705.47 mi (2,744.69 km) |
