| Columbia Heights to Montalegre | 4,082.98 mi (6,570.91 km) |
| Columbia Heights to Montemor-o-Novo | 4,192.06 mi (6,746.47 km) |
| Columbia Heights to Montemor-o-Velho | 4,110.65 mi (6,615.45 km) |
| Columbia Heights to Montijo | 4,160.90 mi (6,696.32 km) |
| Columbia Heights to Mortagua | 4,119.36 mi (6,629.46 km) |
| Columbia Heights to Moura | 4,246.67 mi (6,834.35 km) |
| Columbia Heights to Murtosa | 4,090.26 mi (6,582.64 km) |
| Columbia Heights to Nazare | 4,116.72 mi (6,625.22 km) |
| Columbia Heights to Nelas | 4,132.44 mi (6,650.53 km) |
| Columbia Heights to Obidos | 4,122.45 mi (6,634.45 km) |
| Columbia Heights to Odemira | 4,217.48 mi (6,787.38 km) |
| Columbia Heights to Odivelas | 4,144.35 mi (6,669.68 km) |
| Columbia Heights to Oeiras | 4,142.67 mi (6,666.99 km) |
| Columbia Heights to Olhao | 4,275.41 mi (6,880.61 km) |
| Columbia Heights to Oliveira de Azemeis | 4,092.81 mi (6,586.74 km) |
