| Chesapeake to Montalegre | 3,584.87 mi (5,769.28 km) |
| Chesapeake to Montemor-o-Novo | 3,637.05 mi (5,853.26 km) |
| Chesapeake to Montemor-o-Velho | 3,577.89 mi (5,758.06 km) |
| Chesapeake to Montijo | 3,601.70 mi (5,796.38 km) |
| Chesapeake to Mortagua | 3,594.19 mi (5,784.29 km) |
| Chesapeake to Moura | 3,688.58 mi (5,936.20 km) |
| Chesapeake to Murtosa | 3,567.58 mi (5,741.46 km) |
| Chesapeake to Nazare | 3,571.73 mi (5,748.15 km) |
| Chesapeake to Nelas | 3,611.29 mi (5,811.81 km) |
| Chesapeake to Obidos | 3,572.76 mi (5,749.81 km) |
| Chesapeake to Odemira | 3,642.17 mi (5,861.50 km) |
| Chesapeake to Odivelas | 3,585.00 mi (5,769.51 km) |
| Chesapeake to Oeiras | 3,580.61 mi (5,762.43 km) |
| Chesapeake to Olhao | 3,696.80 mi (5,949.43 km) |
| Chesapeake to Oliveira de Azemeis | 3,573.03 mi (5,750.23 km) |
