| Estoril to McKeesport (Pennsylvania) | 3,651.76 mi (5,876.95 km) |
| Estoril to McKinleyville (California) | 5,567.70 mi (8,960.35 km) |
| Estoril to McKinney (Texas) | 4,702.97 mi (7,568.71 km) |
| Estoril to McLean (Virginia) | 3,558.85 mi (5,727.41 km) |
| Estoril to McMinnville (Oregon) | 5,332.27 mi (8,581.46 km) |
| Estoril to McMinnville (Tennessee) | 4,081.32 mi (6,568.25 km) |
| Estoril to McNair (Virginia) | 3,569.41 mi (5,744.42 km) |
| Estoril to McPherson (Kansas) | 4,560.26 mi (7,339.03 km) |
| Estoril to Mead Valley (California) | 5,626.12 mi (9,054.36 km) |
| Estoril to Meadow Woods (Florida) | 4,100.21 mi (6,598.66 km) |
| Estoril to Meadowbrook (Virginia) | 3,614.03 mi (5,816.22 km) |
| Estoril to Meadville (Pennsylvania) | 3,632.14 mi (5,845.36 km) |
| Estoril to Mebane (North Carolina) | 3,743.27 mi (6,024.22 km) |
| Estoril to Mechanicsville (Virginia) | 3,602.66 mi (5,797.92 km) |
| Estoril to Medford (Massachusetts) | 3,177.28 mi (5,113.33 km) |
