| Swidwin to Montemor-o-Novo | 1,537.93 mi (2,475.06 km) |
| Swidwin to Montemor-o-Velho | 1,474.82 mi (2,373.50 km) |
| Swidwin to Montijo | 1,559.69 mi (2,510.07 km) |
| Swidwin to Mortagua | 1,445.24 mi (2,325.89 km) |
| Swidwin to Moura | 1,539.91 mi (2,478.25 km) |
| Swidwin to Murtosa | 1,444.26 mi (2,324.32 km) |
| Swidwin to Nazare | 1,517.54 mi (2,442.25 km) |
| Swidwin to Nelas | 1,427.44 mi (2,297.24 km) |
| Swidwin to Obidos | 1,533.29 mi (2,467.60 km) |
| Swidwin to Odemira | 1,609.60 mi (2,590.40 km) |
| Swidwin to Odivelas | 1,563.76 mi (2,516.63 km) |
| Swidwin to Oeiras | 1,574.17 mi (2,533.39 km) |
| Swidwin to Olhao | 1,613.77 mi (2,597.10 km) |
| Swidwin to Oliveira de Azemeis | 1,433.22 mi (2,306.54 km) |
| Swidwin to Oliveira de Frades | 1,429.04 mi (2,299.82 km) |
