| Boiling Springs to Montalegre | 3,916.90 mi (6,303.64 km) |
| Boiling Springs to Montemor-o-Novo | 3,972.23 mi (6,392.69 km) |
| Boiling Springs to Montemor-o-Velho | 3,911.93 mi (6,295.65 km) |
| Boiling Springs to Montijo | 3,937.01 mi (6,336.00 km) |
| Boiling Springs to Mortagua | 3,927.86 mi (6,321.28 km) |
| Boiling Springs to Moura | 4,023.97 mi (6,475.95 km) |
| Boiling Springs to Murtosa | 3,901.05 mi (6,278.14 km) |
| Boiling Springs to Nazare | 3,906.37 mi (6,286.69 km) |
| Boiling Springs to Nelas | 3,944.77 mi (6,348.50 km) |
| Boiling Springs to Obidos | 3,907.62 mi (6,288.70 km) |
| Boiling Springs to Odemira | 3,978.12 mi (6,402.17 km) |
| Boiling Springs to Odivelas | 3,920.29 mi (6,309.10 km) |
| Boiling Springs to Oeiras | 3,916.00 mi (6,302.20 km) |
| Boiling Springs to Olhao | 4,032.93 mi (6,490.37 km) |
| Boiling Springs to Oliveira de Azemeis | 3,906.35 mi (6,286.67 km) |
