| Echelon to Montalegre | 3,422.72 mi (5,508.33 km) |
| Echelon to Montemor-o-Novo | 3,486.55 mi (5,611.06 km) |
| Echelon to Montemor-o-Velho | 3,422.46 mi (5,507.92 km) |
| Echelon to Montijo | 3,451.87 mi (5,555.24 km) |
| Echelon to Mortagua | 3,437.34 mi (5,531.87 km) |
| Echelon to Moura | 3,539.04 mi (5,695.53 km) |
| Echelon to Murtosa | 3,410.07 mi (5,487.98 km) |
| Echelon to Nazare | 3,418.75 mi (5,501.95 km) |
| Echelon to Nelas | 3,453.75 mi (5,558.28 km) |
| Echelon to Obidos | 3,420.76 mi (5,505.18 km) |
| Echelon to Odemira | 3,496.02 mi (5,626.31 km) |
| Echelon to Odivelas | 3,435.09 mi (5,528.25 km) |
| Echelon to Oeiras | 3,431.25 mi (5,522.06 km) |
| Echelon to Olhao | 3,551.71 mi (5,715.92 km) |
| Echelon to Oliveira de Azemeis | 3,414.98 mi (5,495.88 km) |
