| Springboro to Montalegre | 3,868.32 mi (6,225.47 km) |
| Springboro to Montemor-o-Novo | 3,944.82 mi (6,348.58 km) |
| Springboro to Montemor-o-Velho | 3,875.84 mi (6,237.56 km) |
| Springboro to Montijo | 3,910.90 mi (6,293.98 km) |
| Springboro to Mortagua | 3,889.11 mi (6,258.92 km) |
| Springboro to Moura | 3,998.09 mi (6,434.30 km) |
| Springboro to Murtosa | 3,861.20 mi (6,214.00 km) |
| Springboro to Nazare | 3,874.73 mi (6,235.78 km) |
| Springboro to Nelas | 3,904.70 mi (6,284.00 km) |
| Springboro to Obidos | 3,877.74 mi (6,240.61 km) |
| Springboro to Odemira | 3,958.40 mi (6,370.42 km) |
| Springboro to Odivelas | 3,894.11 mi (6,266.96 km) |
| Springboro to Oeiras | 3,890.80 mi (6,261.64 km) |
| Springboro to Olhao | 4,014.86 mi (6,461.29 km) |
| Springboro to Oliveira de Azemeis | 3,865.49 mi (6,220.90 km) |
