| Horn Lake to Montalegre | 4,306.97 mi (6,931.40 km) |
| Horn Lake to Montemor-o-Novo | 4,376.22 mi (7,042.85 km) |
| Horn Lake to Montemor-o-Velho | 4,310.36 mi (6,936.85 km) |
| Horn Lake to Montijo | 4,341.76 mi (6,987.38 km) |
| Horn Lake to Mortagua | 4,324.57 mi (6,959.73 km) |
| Horn Lake to Moura | 4,428.96 mi (7,127.73 km) |
| Horn Lake to Murtosa | 4,297.01 mi (6,915.36 km) |
| Horn Lake to Nazare | 4,307.64 mi (6,932.48 km) |
| Horn Lake to Nelas | 4,340.63 mi (6,985.56 km) |
| Horn Lake to Obidos | 4,310.00 mi (6,936.27 km) |
| Horn Lake to Odemira | 4,386.76 mi (7,059.81 km) |
| Horn Lake to Odivelas | 4,324.97 mi (6,960.37 km) |
| Horn Lake to Oeiras | 4,321.28 mi (6,954.43 km) |
| Horn Lake to Olhao | 4,442.61 mi (7,149.69 km) |
| Horn Lake to Oliveira de Azemeis | 4,301.64 mi (6,922.82 km) |
