| Oatfield to Montalegre | 5,195.77 mi (8,361.79 km) |
| Oatfield to Montemor-o-Novo | 5,346.31 mi (8,604.06 km) |
| Oatfield to Montemor-o-Velho | 5,251.03 mi (8,450.72 km) |
| Oatfield to Montijo | 5,320.34 mi (8,562.26 km) |
| Oatfield to Mortagua | 5,252.85 mi (8,453.64 km) |
| Oatfield to Moura | 5,400.45 mi (8,691.19 km) |
| Oatfield to Murtosa | 5,223.42 mi (8,406.29 km) |
| Oatfield to Nazare | 5,266.92 mi (8,476.28 km) |
| Oatfield to Nelas | 5,261.76 mi (8,467.99 km) |
| Oatfield to Obidos | 5,276.21 mi (8,491.24 km) |
| Oatfield to Odemira | 5,387.12 mi (8,669.73 km) |
| Oatfield to Odivelas | 5,304.83 mi (8,537.30 km) |
| Oatfield to Oeiras | 5,305.48 mi (8,538.35 km) |
| Oatfield to Olhao | 5,444.71 mi (8,762.42 km) |
| Oatfield to Oliveira de Azemeis | 5,223.38 mi (8,406.21 km) |
